1
|
Wood MP, Jones CI, Lippy A, Oliver BG, Walund B, Fancher KA, Fisher BS, Wright PJ, Fuller JT, Murapa P, Habib J, Mavigner M, Chahroudi A, Sather DN, Fuller DH, Sodora DL. Rapid progression is associated with lymphoid follicle dysfunction in SIV-infected infant rhesus macaques. PLoS Pathog 2021; 17:e1009575. [PMID: 33961680 PMCID: PMC8133453 DOI: 10.1371/journal.ppat.1009575] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 05/19/2021] [Accepted: 04/20/2021] [Indexed: 12/27/2022] Open
Abstract
HIV-infected infants are at an increased risk of progressing rapidly to AIDS in the first weeks of life. Here, we evaluated immunological and virological parameters in 25 SIV-infected infant rhesus macaques to understand the factors influencing a rapid disease outcome. Infant macaques were infected with SIVmac251 and monitored for 10 to 17 weeks post-infection. SIV-infected infants were divided into either typical (TypP) or rapid (RP) progressor groups based on levels of plasma anti-SIV antibody and viral load, with RP infants having low SIV-specific antibodies and high viral loads. Following SIV infection, 11 out of 25 infant macaques exhibited an RP phenotype. Interestingly, TypP had lower levels of total CD4 T cells, similar reductions in CD4/CD8 ratios and elevated activation of CD8 T cells, as measured by the levels of HLA-DR, compared to RP. Differences between the two groups were identified in other immune cell populations, including a failure to expand activated memory (CD21-CD27+) B cells in peripheral blood in RP infant macaques, as well as reduced levels of germinal center (GC) B cells and T follicular helper (Tfh) cells in spleens (4- and 10-weeks post-SIV). Reduced B cell proliferation in splenic germinal GCs was associated with increased SIV+ cell density and follicular type 1 interferon (IFN)-induced immune activation. Further analyses determined that at 2-weeks post SIV infection TypP infants exhibited elevated levels of the GC-inducing chemokine CXCL13 in plasma, as well as significantly lower levels of viral envelope diversity compared to RP infants. Our findings provide evidence that early viral and immunologic events following SIV infection contributes to impairment of B cells, Tfh cells and germinal center formation, ultimately impeding the development of SIV-specific antibody responses in rapidly progressing infant macaques. Despite significant reductions in vertical HIV transmission, nearly 100,000 children succumb to AIDS-related illnesses each year. Indeed, infants face a disproportionately higher risk of progressing to AIDS, with roughly half of HIV+ infants exhibiting a rapid progression to AIDS-associated morbidity and mortality. Here, we evaluated immunological and virological parameters in 25 simian immunodeficiency virus (SIV)-infected infant rhesus macaques to assess the factors that influence a rapid disease outcome. Infant macaques were infected with simian immunodeficiency virus (SIV) and divided into either typical (TypP) or rapid (RP) progressor groups. RP infants exhibited low levels of plasma anti-SIV antibody and high viral loads. Following SIV infection, 11 out of 25 infant macaques exhibited an RP phenotype with some exhibiting AIDS-related symptoms. This study provides evidence that the low levels of anti-SIV antibodies are associated with impairments to both B and T cells in both blood and lymphoid tissues. These changes are associated with the prolonged expression of type 1 interferons which may be impeding development of a healthy humoral immune response in these rapidly progressing SIV-infected infant macaques. These findings have implications regarding potential therapeutic approaches to prevent rapid progression in HIV infected infants.
Collapse
Affiliation(s)
- Matthew P. Wood
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, Washington, United States of America
| | - Chloe I. Jones
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, Washington, United States of America
| | - Adriana Lippy
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, Washington, United States of America
| | - Brian G. Oliver
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, Washington, United States of America
| | - Brynn Walund
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, Washington, United States of America
| | - Katherine A. Fancher
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, Washington, United States of America
| | - Bridget S. Fisher
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, Washington, United States of America
| | - Piper J. Wright
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, Washington, United States of America
| | - James T. Fuller
- University of Washington Department of Microbiology, Seattle, Washington, United States of America
| | - Patience Murapa
- University of Washington Department of Microbiology, Seattle, Washington, United States of America
- Washington National Primate Research Center, Seattle Washington, United States of America
| | - Jakob Habib
- Yerkes National Primate Research Center, Emory University School of Medicine, Atlanta, Georgia, United States of America
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Maud Mavigner
- Yerkes National Primate Research Center, Emory University School of Medicine, Atlanta, Georgia, United States of America
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, United States of America
- Center for Childhood Infections and Vaccines of Children’s Healthcare of Atlanta and Emory University, Atlanta, Georgia United States of America
| | - Ann Chahroudi
- Yerkes National Primate Research Center, Emory University School of Medicine, Atlanta, Georgia, United States of America
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, United States of America
- Center for Childhood Infections and Vaccines of Children’s Healthcare of Atlanta and Emory University, Atlanta, Georgia United States of America
| | - D. Noah Sather
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, Washington, United States of America
| | - Deborah H. Fuller
- University of Washington Department of Microbiology, Seattle, Washington, United States of America
- Washington National Primate Research Center, Seattle Washington, United States of America
| | - Donald L. Sodora
- Center for Global Infectious Disease Research, Seattle Children’s Research Institute, Seattle, Washington, United States of America
- * E-mail:
| |
Collapse
|
2
|
Raper J, Kovacs-Balint Z, Mavigner M, Gumber S, Burke MW, Habib J, Mattingly C, Fair D, Earl E, Feczko E, Styner M, Jean SM, Cohen JK, Suthar MS, Sanchez MM, Alvarado MC, Chahroudi A. Long-term alterations in brain and behavior after postnatal Zika virus infection in infant macaques. Nat Commun 2020; 11:2534. [PMID: 32439858 PMCID: PMC7242369 DOI: 10.1038/s41467-020-16320-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 04/21/2020] [Indexed: 12/18/2022] Open
Abstract
Zika virus (ZIKV) infection has a profound impact on the fetal nervous system. The postnatal period is also a time of rapid brain growth, and it is important to understand the potential neurobehavioral consequences of ZIKV infection during infancy. Here we show that postnatal ZIKV infection in a rhesus macaque model resulted in long-term behavioral, motor, and cognitive changes, including increased emotional reactivity, decreased social contact, loss of balance, and deficits in visual recognition memory at one year of age. Structural and functional MRI showed that ZIKV-infected infant rhesus macaques had persistent enlargement of lateral ventricles, smaller volumes and altered functional connectivity between brain areas important for socioemotional behavior, cognitive, and motor function (e.g. amygdala, hippocampus, cerebellum). Neuropathological changes corresponded with neuroimaging results and were consistent with the behavioral and memory deficits. Overall, this study demonstrates that postnatal ZIKV infection in this model may have long-lasting neurodevelopmental consequences.
Collapse
Affiliation(s)
- Jessica Raper
- Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | | | - Maud Mavigner
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
- Center for Childhood Infections and Vaccines of Children's Healthcare of Atlanta and Emory University, Atlanta, GA, USA
| | - Sanjeev Gumber
- Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA
| | - Mark W Burke
- Department of Physiology and Biophysics, Howard University, Washington, DC, USA
| | - Jakob Habib
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Cameron Mattingly
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Damien Fair
- Oregon Health and Science University, Portland, OR, USA
| | - Eric Earl
- Oregon Health and Science University, Portland, OR, USA
| | - Eric Feczko
- Oregon Health and Science University, Portland, OR, USA
| | - Martin Styner
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, USA
| | - Sherrie M Jean
- Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA
| | - Joyce K Cohen
- Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA
- Psychiatry & Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - Mehul S Suthar
- Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA
- Center for Childhood Infections and Vaccines of Children's Healthcare of Atlanta and Emory University, Atlanta, GA, USA
- Emory Vaccine Center, Atlanta, GA, 30329, USA
| | - Mar M Sanchez
- Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA
- Psychiatry & Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - Maria C Alvarado
- Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA
| | - Ann Chahroudi
- Yerkes National Primate Research Center, Emory University, Atlanta, GA, USA.
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, USA.
- Center for Childhood Infections and Vaccines of Children's Healthcare of Atlanta and Emory University, Atlanta, GA, USA.
| |
Collapse
|
3
|
Habib J, Mathews D, Dong Y, Breeden C, Adams A. IFNAR signaling augments T cell and plasmacytoid dendritic cell activation during costimulation blockade resistant rejection. The Journal of Immunology 2020. [DOI: 10.4049/jimmunol.204.supp.161.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Costimulation blockade (CoB) is a promising new transplant immunosuppression strategy offering improved long-term allograft survival without the nephrotoxicity of calcineurin inhibitors. However, increased risks of T cell mediated acute rejection have impeded the widespread adoption of CoB. Type I interferon (IFN) produced predominantly by plasmacytoid dendritic cells (pDCs) in response to innate immune signals, induce systemic inflammation that may prime the adaptive immune system for acute rejection. Here we investigate how signaling through the type I interferon receptor (IFNAR) contributes to CoB-resistant allograft rejection. We performed fully MHC-mismatched skin grafts from Balb/cJ donors to C57BL/6 recipients. Mice were treated with CoB alone (250 μg CTLA4-Ig + 250 μg anti-CD154 given by IP injection day 0, 2, 4, 6) or in conjunction with anti-IFNAR (250 μg given day 0, 2, 4, 6). CoB treatment improved graft survival but resulted in CoB-resistant rejection, while CoB+anti-IFNAR significantly improved graft survival. We found that CoB+anti-IFNAR led to a reduction in the activation and effector function of CD8+ T cells compared to CoB alone, demonstrated by reduced frequencies of CD44+CD8+ T cells and an inhibition of IFN-gamma and TNF-alpha production by CD8+ T cells. In addition, we observed reduced CD80 and MHC I expression on conventional DCs (cDCs) and pDCs treated with CoB+anti-IFNAR compared to treatment with CoB alone. These data suggest that signaling through IFNAR augments cDC and pDC activation and is associated with CD8+ T cell activation and effector functions in order to promote CoB-resistant allograft rejection.
Collapse
|
4
|
Mavigner M, Zanoni M, Tharp GK, Habib J, Mattingly CR, Lichterfeld M, Nega MT, Vanderford TH, Bosinger SE, Chahroudi A. Pharmacological Modulation of the Wnt/β-Catenin Pathway Inhibits Proliferation and Promotes Differentiation of Long-Lived Memory CD4 + T Cells in Antiretroviral Therapy-Suppressed Simian Immunodeficiency Virus-Infected Macaques. J Virol 2019; 94:e01094-19. [PMID: 31619550 PMCID: PMC6912121 DOI: 10.1128/jvi.01094-19] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 10/01/2019] [Indexed: 12/21/2022] Open
Abstract
The major obstacle to human immunodeficiency type 1 virus (HIV-1) eradication is a reservoir of latently infected cells that persists despite long-term antiretroviral therapy (ART) and is maintained through cellular proliferation. Long-lived memory CD4+ T cells with high self-renewal capacity, such as central memory (CM) T cells and stem cell memory (SCM) T cells, are major contributors to the viral reservoir in HIV-infected individuals on ART. The Wnt/β-catenin signaling pathway regulates the balance between self-renewal and differentiation of SCM and CM T cells, and pharmacological manipulation of this pathway offers an opportunity to interfere with the proliferation of latently infected cells. Here, we evaluated in vivo a novel approach to inhibit self-renewal of SCM and CM CD4+ T cells in the rhesus macaque (RM) model of simian immunodeficiency (SIV) infection. We used an inhibitor of the Wnt/β-catenin pathway, PRI-724, that blocks the interaction between the coactivator CREB-binding protein (CBP) and β-catenin, resulting in the cell fate decision to differentiate rather than proliferate. Our study shows that PRI-724 treatment of ART-suppressed SIVmac251-infected RMs resulted in decreased proliferation of SCM and CM T cells and modified the SCM and CM CD4+ T cell transcriptome toward a profile of more differentiated memory T cells. However, short-term treatment with PRI-724 alone did not significantly reduce the size of the viral reservoir. This work demonstrates for the first time that stemness pathways of long-lived memory CD4+ T cells can be pharmacologically modulated in vivo, thus establishing a novel strategy to target HIV persistence.IMPORTANCE Long-lasting CD4+ T cell subsets, such as central memory and stem cell memory CD4+ T cells, represent critical reservoirs for human immunodeficiency virus (HIV) persistence despite suppressive antiretroviral therapy. These cells possess stem cell-like properties of enhanced self-renewal/proliferation, and proliferation of latently infected memory CD4+ T cells plays a key role in maintaining the reservoir over time. Here, we evaluated an innovative strategy targeting the proliferation of long-lived memory CD4+ T cells to reduce viral reservoir stability. Using the rhesus macaque model, we tested a pharmacological inhibitor of the Wnt/β-catenin signaling pathway that regulates T cell proliferation. Our study shows that administration of the inhibitor PRI-724 decreased the proliferation of SCM and CM CD4+ T cells and promoted a transcriptome enriched in differentiation genes. Although the viral reservoir size was not significantly reduced by PRI-724 treatment alone, we demonstrate the potential to pharmacologically modulate the proliferation of memory CD4+ T cells as a strategy to limit HIV persistence.
Collapse
Affiliation(s)
- M Mavigner
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - M Zanoni
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
- Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, USA
| | - G K Tharp
- Emory Vaccine Center, Emory University, Atlanta, Georgia, USA
- Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, USA
| | - J Habib
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - C R Mattingly
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
| | - M Lichterfeld
- Ragon Institute of MGH, MIT and Harvard, Cambridge, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - M T Nega
- Emory Vaccine Center, Emory University, Atlanta, Georgia, USA
- Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, USA
| | - T H Vanderford
- Emory Vaccine Center, Emory University, Atlanta, Georgia, USA
- Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, USA
| | - S E Bosinger
- Emory Vaccine Center, Emory University, Atlanta, Georgia, USA
- Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, USA
- Emory + Children's Center for Childhood Infections and Vaccines, Children's Healthcare of Atlanta, Atlanta, Georgia, USA
| | - A Chahroudi
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia, USA
- Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, USA
- Emory + Children's Center for Childhood Infections and Vaccines, Children's Healthcare of Atlanta, Atlanta, Georgia, USA
| |
Collapse
|
5
|
Mavigner M, Raper J, Kovacs-Balint Z, Gumber S, O'Neal JT, Bhaumik SK, Zhang X, Habib J, Mattingly C, McDonald CE, Avanzato V, Burke MW, Magnani DM, Bailey VK, Watkins DI, Vanderford TH, Fair D, Earl E, Feczko E, Styner M, Jean SM, Cohen JK, Silvestri G, Johnson RP, O'Connor DH, Wrammert J, Suthar MS, Sanchez MM, Alvarado MC, Chahroudi A. Postnatal Zika virus infection is associated with persistent abnormalities in brain structure, function, and behavior in infant macaques. Sci Transl Med 2019; 10:10/435/eaao6975. [PMID: 29618564 DOI: 10.1126/scitranslmed.aao6975] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 03/07/2018] [Indexed: 12/22/2022]
Abstract
The Zika virus (ZIKV) epidemic is associated with fetal brain lesions and other serious birth defects classified as congenital ZIKV syndrome. Postnatal ZIKV infection in infants and children has been reported; however, data on brain anatomy, function, and behavioral outcomes following infection are absent. We show that postnatal ZIKV infection of infant rhesus macaques (RMs) results in persistent structural and functional alterations of the central nervous system compared to age-matched controls. We demonstrate ZIKV lymphoid tropism and neurotropism in infant RMs and histopathologic abnormalities in the peripheral and central nervous systems including inflammatory infiltrates, astrogliosis, and Wallerian degeneration. Structural and resting-state functional magnetic resonance imaging (MRI/rs-fMRI) show persistent enlargement of lateral ventricles, maturational changes in specific brain regions, and altered functional connectivity (FC) between brain areas involved in emotional behavior and arousal functions, including weakened amygdala-hippocampal connectivity in two of two ZIKV-infected infant RMs several months after clearance of ZIKV RNA from peripheral blood. ZIKV infection also results in distinct alterations in the species-typical emotional reactivity to acute stress, which were predicted by the weak amygdala-hippocampal FC. We demonstrate that postnatal ZIKV infection of infants in this model affects neurodevelopment, suggesting that long-term clinical monitoring of pediatric cases is warranted.
Collapse
Affiliation(s)
- Maud Mavigner
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Jessica Raper
- Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - Zsofia Kovacs-Balint
- Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - Sanjeev Gumber
- Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | | | - Siddhartha K Bhaumik
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Xiaodong Zhang
- Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - Jakob Habib
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Cameron Mattingly
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | | | - Victoria Avanzato
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Mark W Burke
- Department of Physiology and Biophysics, Howard University, Washington, DC 20060, USA
| | - Diogo M Magnani
- Department of Pathology, University of Miami, Miami, FL 33146, USA
| | - Varian K Bailey
- Department of Pathology, University of Miami, Miami, FL 33146, USA
| | - David I Watkins
- Department of Pathology, University of Miami, Miami, FL 33146, USA
| | - Thomas H Vanderford
- Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - Damien Fair
- Oregon Health and Science University, Portland, OR 97239, USA
| | - Eric Earl
- Oregon Health and Science University, Portland, OR 97239, USA
| | - Eric Feczko
- Oregon Health and Science University, Portland, OR 97239, USA
| | - Martin Styner
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Sherrie M Jean
- Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - Joyce K Cohen
- Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - Guido Silvestri
- Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA.,Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - R Paul Johnson
- Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - David H O'Connor
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Madison, WI 53715, USA
| | - Jens Wrammert
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Mehul S Suthar
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA.,Emory Vaccine Center, Atlanta, GA 30329, USA
| | - Mar M Sanchez
- Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA.,Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Maria C Alvarado
- Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA.,Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Ann Chahroudi
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA. .,Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA.,Children's Healthcare of Atlanta, Atlanta, GA 30322, USA
| |
Collapse
|
6
|
Mavigner M, Deleage C, Habib J, Rosen E, Kashuba A, Amblard F, Schinazi R, Geleziunas R, Hesselgesser J, Li B, Hattersley J, Mcgary C, Paiardini M, Wood M, Sodora D, Silvestri G, Estes J, Chahroudi A. Simian Immunodeficiency Virus (SIV) Persistence in Antiretroviral Therapy (ART)-Treated Infant Rhesus Macaques. Open Forum Infect Dis 2016. [DOI: 10.1093/ofid/ofw172.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | - Claire Deleage
- Frederick National Laboratory for Cancer Research, Frederick, Maryland
| | | | - Elias Rosen
- University of North Carolina, Chapel Hill, North Carolina
| | - Angela Kashuba
- University of North Carolina, Chapel Hill, North Carolina
| | | | | | | | | | - Bei Li
- Gilead Sciences, Inc, Foster City, California
| | | | | | | | - Matthew Wood
- Center for Infectious Disease Research, Seattle, Washington
| | - Donald Sodora
- Center for Infectious Disease Research, Seattle, Washington
| | | | - Jacob Estes
- Frederick National Laboratory for Cancer Research, Frederick, Maryland
| | | |
Collapse
|
7
|
Mavigner M, Lee ST, Habib J, Robinson C, Silvestri G, O’Doherty U, Chahroudi A. Quantifying integrated SIV-DNA by repetitive-sampling Alu-gag PCR. J Virus Erad 2016; 2:219-226. [PMID: 27781104 PMCID: PMC5075349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES Although antiretroviral therapy (ART) effectively suppresses HIV-1 replication, it does not eradicate the virus and ART interruption consistently results in rebound of viraemia, demonstrating the persistence of a long-lived viral reservoir. Several approaches aimed at reducing virus persistence are being developed, and accurate measurements of the latent reservoir (LR) are necessary to assess the effectiveness of anti-latency interventions. We sought to measure the LR in SIV/SHIV-infected rhesus macaques (RMs) by quantifying integrated SIV-DNA. METHODS We optimised a repetitive sampling Alu-gag PCR to quantify integrated SIV-DNA ex vivo in ART-naïve and ART-experienced SIV/SHIV-infected RMs. RESULTS In ART-naïve RMs, we found the median level of integrated SIV-DNA to be 1660 copies and 866 copies per million PBMC during untreated acute and chronic SHIV infection, respectively. Integrated and total SIV-DNA levels were positively correlated with one another. In ART-treated RMs, integrated SIV-DNA was readily detected in lymph nodes and spleen and levels of total (3319 copies/million cells) and integrated (3160 copies/million cells) SIV-DNA were similar after a median of 404 days of ART. In peripheral blood CD4+ T cells from ART-treated RMs, levels of total (3319 copies/million cells) and integrated (2742 copies/million cells) SIV-DNA were not significantly different and were positively correlated. CONCLUSIONS The assay described here is validated and can be used in interventional studies testing HIV/SIV cure strategies in RMs. Measurement of integrated SIV-DNA in ART-treated RMs, along with other reservoir analyses, gives an estimate of the size of the LR.
Collapse
Affiliation(s)
- Maud Mavigner
- Yerkes National Primate Research Center,
Emory University,
Atlanta,
GA,
USA,Department of Pediatrics,
Emory University School of Medicine,
Atlanta,
GA,
USA
| | - S Thera Lee
- Yerkes National Primate Research Center,
Emory University,
Atlanta,
GA,
USA,Department of Pediatrics,
Emory University School of Medicine,
Atlanta,
GA,
USA
| | - Jakob Habib
- Department of Pediatrics,
Emory University School of Medicine,
Atlanta,
GA,
USA
| | - Cameron Robinson
- Yerkes National Primate Research Center,
Emory University,
Atlanta,
GA,
USA
| | - Guido Silvestri
- Yerkes National Primate Research Center,
Emory University,
Atlanta,
GA,
USA
| | - Una O’Doherty
- Department of Pathology and Laboratory Medicine,
University of Pennsylvania,
Philadelphia,
PA,
USA
| | - Ann Chahroudi
- Yerkes National Primate Research Center,
Emory University,
Atlanta,
GA,
USA,Department of Pediatrics,
Emory University School of Medicine,
Atlanta,
GA,
USA,Corresponding author: Ann Chahroudi,
E472, HSRB, 1760 Haygood Drive,
Atlanta,
GA30322,
USA
| |
Collapse
|
8
|
Mavigner M, Lee ST, Habib J, Robinson C, Silvestri G, O’Doherty U, Chahroudi A. Quantifying integrated SIV-DNA by repetitive-sampling Alu-gag PCR. J Virus Erad 2016. [DOI: 10.1016/s2055-6640(20)30870-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
|
9
|
Mavigner M, Deleage C, Habib J, Rosen E, Kashuba A, Amblard F, Schinazi R, Geleziunas R, Hesselgesser J, Li B, Hattersley J, McGary C, Paiardini M, Wood M, Sodora D, Silvestri G, Estes J, Chahroudi A. OA4-5 LB SIV persistence in ART-treated infant rhesus macaques. J Virus Erad 2016. [DOI: 10.1016/s2055-6640(20)31022-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
10
|
Mavigner M, Habib J, Cartwright E, Lawson B, Paiardini M, Cohen J, Amblard F, Schinazi R, Geleziunas R, Hesselgesser J, Li B, Hattersley J, Silvestri G, Chahroudi A. Pediatric HIV Cure: A Rhesus Macaque Model. Open Forum Infect Dis 2015. [DOI: 10.1093/ofid/ofv133.346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
11
|
Fares S, Habib J, Engoren M, Badr K, Habib R. Effect of Salt Diet on Beat‐to‐Beat Blood Pressure Dynamics in Hypertensive and Non‐hypertensive Rats. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.950.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- S Fares
- Nursing American University of BeirutLebanon
| | - J Habib
- Internal MedicineAmerican University of BeirutLebanon
| | - M Engoren
- AnesthesiologyUniversity of MichiganAnn ArborMIUnited States
| | - K Badr
- Internal MedicineAmerican University of BeirutLebanon
| | - R Habib
- Internal MedicineAmerican University of BeirutLebanon
| |
Collapse
|
12
|
Abstract
OBJECTIVE B cell targeted therapies have been effective in slowing multiple sclerosis (MS) disease progression suggesting a direct causal link for this lymphoid subset. A small subset of B cells with regulative properties (Bregs) exists in peripheral blood, and induction of Bregs ameliorates experimental autoimmune encephalomyelitis (EAE), the murine model for MS. Therefore the frequency of B cell subsets and regulatory B cells in particular in peripheral blood of MS patients is of interest. METHODS The phenotype and frequency of B cell subsets in peripheral blood from 32 MS patients and 34 healthy controls (HC) were examined using flow cytometry. RESULTS We found that there is an increase in CD19+ cell number in MS 1347 ± 159 cells/μL, (average ± SEM) compared to HC, 935 ± 129 cells/μL and no apparent deficiency in B-cells with a regulatory phenotype. In addition, we observed a loss of correlation between CD19+ B cells and total lymphocyte count in MS. CONCLUSION These findings suggest altered blood B-cell homeostasis in MS patients.
Collapse
Affiliation(s)
- Jakob Habib
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University School of Medicine, 1365 Clifton Rd NE, Atlanta, Georgia 30322, USA
| | - Jiusheng Deng
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University School of Medicine, 1365 Clifton Rd NE, Atlanta, Georgia 30322, USA
| | - Neil Lava
- Department of Neurology, Emory MS Center, 1365 Clifton Rd NE, Atlanta, Georgia, 30322, USA
| | - William Tyor
- Department of Neurology, Emory MS Center, 1365 Clifton Rd NE, Atlanta, Georgia, 30322, USA ; Department of Neurology (GEC), Atlanta VA Medical Center, 1670 Clairmont Road, Decatur, GA 30033
| | - Jacques Galipeau
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University School of Medicine, 1365 Clifton Rd NE, Atlanta, Georgia 30322, USA
| |
Collapse
|
13
|
Gobert O, Mennerat G, Maksimenka R, Fedorov N, Perdrix M, Guillaumet D, Ramond C, Habib J, Prigent C, Vernhet D, Oksenhendler T, Comte M. Efficient broadband 400 nm noncollinear second-harmonic generation of chirped femtosecond laser pulses in BBO and LBO. Appl Opt 2014; 53:2646-2655. [PMID: 24787591 DOI: 10.1364/ao.53.002646] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 03/21/2014] [Indexed: 06/03/2023]
Abstract
We report on 400 nm broadband type I frequency doubling in a noncollinear geometry with pulse-front-tilted and chirped femtosecond pulses (λ =800 nm; Fourier transform limited pulse duration, 45 fs). With moderate power densities (2 to 10 GW/cm2) thus avoiding higher-order nonlinear phenomena, the energy conversion efficiency was up to 65%. Second-harmonic pulses of Fourier transform limited pulse duration shorter than the fundamental wave were generated, exhibiting good beam quality and no pulse-front tilt. High energy (20 mJ/pulse) was produced in a 40 mm diameter and 6 mm thick LBO crystal. To the best of our knowledge, this is the first demonstration of this optical configuration with sub-100-fs pulses. Good agreement between experimental results and simulations is obtained.
Collapse
|
14
|
Stuckey D, McSweeney S, Thin MZ, Habib J, Price A, Fiedler L, Prasad S, Schneider M. 220 DETECTION OF DIFFUSE AND FOCAL CARDIAC FIBROSIS IN MOUSE PRESSURE-OVERLOAD HYPERTROPHY USING MRI T1 MAPPING. Heart 2013. [DOI: 10.1136/heartjnl-2013-304019.220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
15
|
Habib J, Guilbaud O, Zielbauer B, Zimmer D, Pittman M, Kazamias S, Montet C, kuehl T, Ros D. Low energy prepulse for 10 Hz operation of a soft-x-ray laser. Opt Express 2012; 20:10128-10137. [PMID: 22535105 DOI: 10.1364/oe.20.010128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The influence on Nickel-like Molybdenum soft-x-ray laser performance and stability of a low energy laser prepulse arriving prior to the main laser pumping pulses is experimentally investigated. A promising regime for 10 Hz operation has been observed. A four times increase in soft-x-ray laser operation time with a same target surface is demonstrated. This soft-x-ray laser operation mode corresponds to an optimum delay between the prepulse and the main pulses and to a prepulse energy greater than 20 mJ. We also show that this regime is not associated with a weaker degradation of the target or any reduced ablation rate. Therefore the role of preplasma density gradient in this effect is discussed.
Collapse
Affiliation(s)
- J Habib
- LASERIX, Univ. Paris-Sud, bat 210 campus d’Orsay, 91405 Orsay, France.
| | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Haas D, Galler H, Habib J, Melkes A, Schlacher R, Buzina W, Friedl H, Marth E, Reinthaler F. Concentrations of viable airborne fungal spores and trichloroanisole in wine cellars. Int J Food Microbiol 2010; 144:126-32. [DOI: 10.1016/j.ijfoodmicro.2010.09.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2010] [Revised: 08/16/2010] [Accepted: 09/11/2010] [Indexed: 11/16/2022]
|
17
|
Guilbaud O, Tissandier F, Goddet JP, Ribière M, Sebban S, Gautier J, Joyeux D, Ros D, Cassou K, Kazamias S, Klisnick A, Habib J, Zeitoun P, Benredjem D, Mocek T, Nedjl J, de Rossi S, Maynard G, Cros B, Boudaa A, Calisti A. Fourier-limited seeded soft x-ray laser pulse. Opt Lett 2010; 35:1326-1328. [PMID: 20436557 DOI: 10.1364/ol.35.001326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We present what we believe to be the first measurement of the spectral properties of a soft x-ray laser seeded by a high-order harmonic beam. Using an interferometric method, the spectral profile of a seeded Ni-like krypton soft x-ray laser (32.8 nm) generated by optical field ionization has been experimentally determined, and the shortest possible pulse duration has been deduced. The source exhibits a Voigt spectral profile with an FWHM of 3.1+/-0.3 mA, leading to a Fourier-transform pulse duration of 4.7 ps. This value is comparable with the upper limit of the soft x-ray pulse duration determined by experimentally investigating the gain dynamics, from which we conclude that the source has reached the Fourier limit. The measured bandwidth is in good agreement with the predictions of a radiative transfer code, including gain line narrowing and saturation rebroadening.
Collapse
Affiliation(s)
- O Guilbaud
- LIXAM, CNRS, Univ Paris-Sud, bat 350 campus d'Orsay, 91405 Orsay, France.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Factor H, Habib J. A model of the impact of immigration on health and social service expenditures for the elderly. Public Financ 2002; 48 Suppl.:147-77. [PMID: 12233616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
"Immigration, primarily from the former Soviet Union, has swelled the population of Israel by 10% between 1990 and 1993 and total population growth by the end of the decade is expected to be over 30%. The research presented here represents part of a larger effort to project needs and costs for the entire population in order to assist health and social welfare services in planning and resource allocation. The paper presents an overview of the current demographic situation in Israel, a theoretical model for estimating the growth in needs, and estimates of needs and costs for services for the elderly population based upon this model."
Collapse
|
19
|
Abstract
This paper provides an overview of the major trends in the organization of services for the disabled elderly, and the implications for the elderly of the emphasis in recent years on remaining at home in the community. The paper presents an example of changing policies from the experience of Israel, which recently enacted a Community Long-term Care Insurance Law to increase levels of home care entitlements to the severely disabled.
Collapse
Affiliation(s)
- J Brodsky
- JDC-Brookdale Institute, Jerusalem, Israel
| | | |
Collapse
|
20
|
Cohen J, Haber GB, Kortan P, Dorais JA, Scheider DM, Cirocco M, Habib J. A prospective study of the repeated use of sterilized papillotomes and retrieval baskets for ERCP: quality and cost analysis. Gastrointest Endosc 1997; 45:122-7. [PMID: 9040995 DOI: 10.1016/s0016-5107(97)70233-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND The impact on instrument quality and cost of the practice of reusing ERCP accessories has not been fully addressed. METHODS Twenty-five new papillotomes and 15 new retrieval baskets were labeled and evaluated over time by staff blinded to the number of prior uses. Instruments were scored as to their function for the designated task. The cost of this practice was calculated from the purchase price of accessories and the costs of cleaning, sterilization, and disposal, and then compared with the estimated cost of a practice of one-time use of similar instruments. RESULTS Twenty-five papillotomes were used 246 times (median 8; mean 9.8). Fifteen retrieval baskets were used 193 times (median 13; mean 12.9). The median survival of both papillotomes and baskets before being considered inadequate (score < 6 out of 10) was 9 uses. There were no complications attributable to using reused equipment. The projected yearly cost savings of using reusable versus disposable instruments was $94,095 for papillotomes and $61,809 for baskets, a 475% and 322% cost reduction, respectively. CONCLUSION The papillotomes and baskets in this study could be reused reliably and safely multiple times, with considerable cost savings compared with the practice of using disposable instruments.
Collapse
Affiliation(s)
- J Cohen
- Wellesley Hospital, Toronto, Ontario, Canada
| | | | | | | | | | | | | |
Collapse
|
21
|
Habib J, Massoud MR, Aboulafia M, Greenberg D. Quality management for health care in the Middle East and north Africa: professional cooperation as part of the peace process. Jt Comm J Qual Improv 1997; 23:65-8. [PMID: 9116887 DOI: 10.1016/s1070-3241(16)30297-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND In 1993, as the peace process opened up new possibilities for professional cooperation, the Quality Management (QM) Program for Health Care Organizations in the Middle East and North Africa was born of a shared perception that there is a high-priority need to improve the quality of health care and to cope with increasing costs and financial pressures. To date 22 health care organizations--including hospitals, primary care centers, health maintenance organizations, and ministries of health--are members of the QM Program and are actively implementing QM projects. DEVELOPMENT OF THE PROGRAM The QM Program began with an introductory conference, followed by an intensive training course. During the current phase of the program (1996-1999), a variety of facilitation activities--including training visits to the region by international experts, consultation support to member organizations by volunteer mentors in the United States, professional-exchange seminars, and site visits--are being conducted at the regional and national levels. Since the training course, the QM Program member organizations have implemented more than 40 model QM projects to improve both clinical and nonclinical processes. Projects consistent with national and organizational priorities were selected, with an emphasis on fast-paced improvements that reduce costs and enhance patient satisfaction. FUTURE PLANS The regional QM Program is envisioned to grow in size and strength through a four-year building process. By the year 2000, a cadre of local leaders should be prepared to carry the program forward into the new millennium.
Collapse
Affiliation(s)
- J Habib
- JDC-Brookdale Institute, Jerusalem
| | | | | | | |
Collapse
|
22
|
Abstract
BACKGROUND There is evidence that occupational factors that cause psychological strain can affect physical and mental health, but findings are not consistent. METHODS Work satisfaction was used as a convenient global index of job-related psychological strain. Relationships with general, physical and emotional health, appraised by the use of questions, were examined in workers aged > or = 50 years in a longitudinal community health study in Jerusalem. RESULTS Positive associations were found both in 1975-1976 and in 1985-1987, with age, origin, education, sex and other variables controlled. The odds ratio in favour of poor general health was 2.8 times as high in dissatisfied workers as in very satisfied ones. Multivariate analyses suggested that the associations were not spurious ones attributable to a proneness to report both dissatisfaction and ill-health. Workers who expressed dissatisfaction in both 1975-1976 and 1985-1987 were particularly unhealthy in 1985-1987. CONCLUSIONS The findings support the impact of work satisfaction or its determinants on current health, and suggest that persistent dissatisfaction may be especially deleterious to health.
Collapse
Affiliation(s)
- J H Abramson
- Department of Social Medicine, Hebrew University-Hadassah School of Public Health and Community Medicine, Jerusalem, Israel
| | | | | | | | | |
Collapse
|
23
|
Habib J, Shurtleff S, Fish J, Devlin H. Nosocomial transmission of aminoglycoside resistant acinetobacter anitratus in a burn unit linked to mattresses. Am J Infect Control 1993. [DOI: 10.1016/0196-6553(93)90313-s] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
24
|
Shurtleff S, Habib J, Devlin H. Early detection and rapid intervention limits unit closures due to viral gastroenteritis outbreaks. Am J Infect Control 1993. [DOI: 10.1016/0196-6553(93)90280-h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
25
|
Abstract
Cross-cultural comparison can offer critical input to analyses of the interplay between formal and informal services for the elderly. Israel and Sweden have very different population structures and represent different points on the spectrum of welfare state development: Sweden has a much higher percentage of elderly, a less traditional family structure, and a much more developed system of public support. In addition, there are thought to be different attitudes toward family ties, with a less family-oriented value structure in Sweden. The natural question is to what extent these differences translate into differences in the extent and nature of family support for the elderly. In this article, family structure, living arrangements, disability rates, and formal and informal sources of help in Sweden and Israel are compared at various points in time. While there is a greater rate of formal service provision in Sweden and some substitution for family support seems to have occurred, informal care has nevertheless remained important. In both countries, residential patterns are critical: it is when the elderly live alone that the formal system has tended to replace the family. The rate of institutionalization is particularly important in determining the rate of disabled elderly requiring care, both formal and informal, in the community.
Collapse
Affiliation(s)
- J Habib
- JDC-Brookdale Institute of Gerontology and Human Development, Jerusalem, Israel
| | | | | |
Collapse
|
26
|
Factor H, Habib J. Developing an information base for short-and long-term planning of services for the elderly in Israel: an interim report. Isr J Med Sci 1986; 22:326-31. [PMID: 3744779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Population aging throughout the Western world has stimulated a concern with the implications for service needs. It has been increasingly recognized that not only the increase in the total number of elderly, but also changes in their composition, are affecting service needs. This paper describes the attempts made to acquire more detailed information on the implications of demographic change for service needs in Israel. It indicates the dimensions of demographic change and then proceeds to present an overall picture of the strategy employed to evaluate the impact of these changes on aspects of health status and the need for community and institutional services.
Collapse
|
27
|
Factor H, Habib J. Role of institutional and community services in meeting the long-term care needs of the elderly in Israel: the decade of the 1980s. Isr J Med Sci 1985; 21:212-8. [PMID: 3922917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Israel faces a major challenge to its capacity to deal adequately with the needs of the chronically ill. This paper describes the present state of long-term care services for the chronically ill and documents the extensive disparities in the rate of institutional and community services by region. In view of the expected dramatic increase in the number of aged greater than or equal to 75 years old (from 106,800 to 181,500 between 1980 and 1990), the authors project a 50% increase in the need for institutional and community services just to maintain existing service patterns. The paper discusses the central issues related to the development of both types of services in response to the increase in needs.
Collapse
|
28
|
Abramson JH, Gofin R, Habib J, Pridan H, Gofin J. Indicators of social class. A comparative appraisal of measures for use in epidemiological studies. Soc Sci Med 1982; 16:1739-46. [PMID: 7178920 DOI: 10.1016/0277-9536(82)90267-2] [Citation(s) in RCA: 112] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
29
|
Abramson JH, Gofin R, Hopp C, Gofin J, Donchin M, Habib J. Evaluation of a community program for the control of cardiovascular risk factors: the CHAD program in Jerusalem. Isr J Med Sci 1981; 17:201-12. [PMID: 7228646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A community-focused program for the control of cardiovascular risk factors, the CHAD program, was instituted in a family practice in western Jerusalem in 1971. Its effectiveness was evaluated by comparing the changes detected by surveys conducted in 1970 and 1975 with those observed in an adjacent control neighborhood. Hypertension decreased in prevalence by 33%, hypercholesterolemia by 31%, cigarette smoking by 23% (among men), and overweight by 13%. Allowing for the reductions observed in the control population, the net percent reductions in prevalence were 20% for hypertension, 15% for hypercholesterolemia, 11% for cigarette smoking (men) and 13% for overweight. The net reductions in hypertension, smoking and overweight were statistically significant. The net reductions in mean systolic and diastolic pressures and weight were also significant. The results suggest that intervention centered in primary health care can have an appreciable effect on cardiovascular risk factors in the population.
Collapse
|
30
|
Abramson JH, Hopp C, Gofin J, Gofin R, Makler A, Habib J, Ronen I. A community program for the control of cardiovascular risk factors: a preliminary evaluation of the effectiveness of the CHAD program in Jerusalem. J Community Health 1979; 5:3-21. [PMID: 500846 DOI: 10.1007/bf01321566] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A community program for the control of cardiovascular risk factors, the CHAD program, was instituted in a family practice in western Jerusalem in 1971. The effectiveness of the program was evaluated by comparing the findings of community surveys conducted in 1970 and 1975 and by comparing the changes with those observed in an adjacent control neighborhood. This paper reports the findings among men aged 35 years and above. In the community exposed to the program there was a decrease in mean systolic and disatolic pressures, in the prevalence of hypercholesterolemia, and in the prevalence of cigarette smoking. The changes in blood pressures and smoking habits were significantly greater than those observed in the control population. In the control population (only) there was a small increase in mean body weight and a decrease in reported physical activity. The findings suggest that it is possible for a program that operates and through primary health care to have an appreciable influence upon cardiovascular risk factors in the community.
Collapse
|
31
|
Poncet R, Habib J. [Parallelometry]. Dent Cadmos 1969; 37:259-75. [PMID: 4921546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|