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Unger HW, Hadiprodjo AJ, Gutman JR, Briand V, Fievet N, Valea I, Tinto H, D'Alessandro U, Landis SH, Ter Kuile F, Ouma P, Oneko M, Mwapasa V, Slutsker L, Terlouw DJ, Kariuki S, Ayisi J, Nahlen B, Desai M, Madanitsa M, Kalilani-Phiri L, Ashorn P, Maleta K, Tshefu-Kitoto A, Mueller I, Stanisic D, Cates J, Van Eijk AM, Ome-Kaius M, Aitken EH, Rogerson SJ. Fetal sex and risk of pregnancy-associated malaria in Plasmodium falciparum-endemic regions: a meta-analysis. Sci Rep 2023; 13:10310. [PMID: 37365258 DOI: 10.1038/s41598-023-37431-3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 06/21/2023] [Indexed: 06/28/2023] Open
Abstract
In areas of moderate to intense Plasmodium falciparum transmission, malaria in pregnancy remains a significant cause of low birth weight, stillbirth, and severe anaemia. Previously, fetal sex has been identified to modify the risks of maternal asthma, pre-eclampsia, and gestational diabetes. One study demonstrated increased risk of placental malaria in women carrying a female fetus. We investigated the association between fetal sex and malaria in pregnancy in 11 pregnancy studies conducted in sub-Saharan African countries and Papua New Guinea through meta-analysis using log binomial regression fitted to a random-effects model. Malaria infection during pregnancy and delivery was assessed using light microscopy, polymerase chain reaction, and histology. Five studies were observational studies and six were randomised controlled trials. Studies varied in terms of gravidity, gestational age at antenatal enrolment and bed net use. Presence of a female fetus was associated with malaria infection at enrolment by light microscopy (risk ratio 1.14 [95% confidence interval 1.04, 1.24]; P = 0.003; n = 11,729). Fetal sex did not associate with malaria infection when other time points or diagnostic methods were used. There is limited evidence that fetal sex influences the risk of malaria infection in pregnancy.
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Affiliation(s)
- Holger W Unger
- Department of Obstetrics and Gynaecology, Royal Darwin Hospital, Darwin, NT, Australia
- Menzies School of Health Research, Charles Darwin University, Darwin, NT, Australia
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Anastasia Jessica Hadiprodjo
- Department of Medicine (RMH), Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia
| | - Julie R Gutman
- Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, U.S. Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Valerie Briand
- Université de Paris, UMR261, IRD, Paris, France
- Epicentre MSF, Paris, France
| | | | - Innocent Valea
- Unite de Recherche Clinique de Nanoro, Institut de Recherche en Sciences de La Santé-DRCO, Nanoro, Burkina Faso
- Departement de Recherche Clinique, Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Halidou Tinto
- Unite de Recherche Clinique de Nanoro, Institut de Recherche en Sciences de La Santé-DRCO, Nanoro, Burkina Faso
- Departement de Recherche Clinique, Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Umberto D'Alessandro
- Medical Research Council Unit, The Gambia at the London School of Hygiene and Tropical Medicine, Fajara, Gambia
- London School of Hygiene and Tropical Medicine, London, UK
| | | | - Feiko Ter Kuile
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Peter Ouma
- Kenya Medical Research Institute (KEMRI)/Centre for Global Health Research, Kisumu, Kenya
| | - Martina Oneko
- Kenya Medical Research Institute (KEMRI)/Centre for Global Health Research, Kisumu, Kenya
| | - Victor Mwapasa
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Laurence Slutsker
- Malaria and Neglected Tropical Diseases, Center for Malaria Control and Elimination, PATH, Seattle, WA, USA
| | - Dianne J Terlouw
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi
| | - Simon Kariuki
- Kenya Medical Research Institute (KEMRI)/Centre for Global Health Research, Kisumu, Kenya
| | - John Ayisi
- Kenya Medical Research Institute (KEMRI)/Centre for Global Health Research, Kisumu, Kenya
| | | | - Meghna Desai
- Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, U.S. Centers for Disease Control and Prevention, Atlanta, GA, USA
| | | | - Linda Kalilani-Phiri
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Per Ashorn
- Faculty of Medicine and Health Technology, Center for Child, Adolescent and Maternal Health Research, Tampere University, Tampere, Finland
- Department for Pediatrics, Tampere University Hospital, Tampere, Finland
| | - Kenneth Maleta
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | | | - Ivo Mueller
- Walter and Eliza Hall Institute, Parkville, VIC, Australia
| | - Danielle Stanisic
- Institute for Glycomics, Griffith University, Gold Coast, QLD, Australia
| | - Jordan Cates
- Department of Epidemiology, UNC-Chapel Hill, Chapel Hill, NC, USA
| | - Anna Maria Van Eijk
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Maria Ome-Kaius
- Papua New Guinea Institute of Medical Research, Goroka, Papua New Guinea
| | - Elizabeth H Aitken
- Department of Infectious Diseases, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia
| | - Stephen J Rogerson
- Department of Medicine (RMH), Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia.
- Department of Infectious Diseases, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia.
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia.
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Manirakiza A, Tondeur L, Ketta MYB, Sepou A, Serdouma E, Gondje S, Bata GGB, Boulay A, Moyen JM, Sakanga O, Le-Fouler L, Kazanji M, Briand V, Lombart JP, Vray M. Cotrimoxazole versus sulfadoxine-pyrimethamine for intermittent preventive treatment of malaria in HIV-infected pregnant women in Bangui, Central African Republic: A pragmatic randomised controlled trial. Trop Med Int Health 2021; 26:1314-1323. [PMID: 34407273 DOI: 10.1111/tmi.13668] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The main objective of the MACOMBA (Maternity and Control of Malaria-HIV co-infection in Bangui) trial was to show that cotrimoxazole (CTX) is more effective than sulphadoxine-pyremethamine-IPTp (IPTp-SP) to prevent placental malaria infection (primary end point) among HIV-positive pregnant women with a CD4+ count ≥350 cells/mm3 in Bangui, CAR. METHODS MACOMBA is a multicentre, open-label randomised trial conducted in four maternity hospitals in Bangui. Between 2013 and 2017, 193 women were randomised and 112 (59 and 53 in CTX and IPTp-SP arms, respectively) were assessed for placental infection defined by microscopic parasitaemia or PCR. RESULTS Thirteen women had a placental infection: five in the CTX arm (one by microscopic placental parasitaemia and four by PCR) and eight by PCR in the SP-IPTp (8.5% vs. 15.1%, p = 0.28). The percentage of newborns with low birthweight (<2500 g) did not differ statistically between the two arms. Self-reported compliance to CTX prophylaxis was good. There was a low overall rate of adverse events in both arms. CONCLUSION Although our results do not allow us to conclude that CTX is more effective, drug safety and good compliance among women with this treatment favour its widespread use among HIV-infected pregnant women, as currently recommended by WHO.
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Affiliation(s)
- Alexandre Manirakiza
- Institut Pasteur of Bangui, International Network of Instituts Pasteur, Bangui, Central African Republic
| | - Laura Tondeur
- Institut Pasteur of Paris, Unité d'Epidémiologie des Maladies Emergentes, Paris, France
| | | | - Abdoulaye Sepou
- Hôpital Communautaire of Bangui, Ministry of Health, Bangui, Central African Republic
| | - Eugène Serdouma
- Hôpital de l'Amitié, Ministry of Health, Bangui, Central African Republic
| | - Samuel Gondje
- Maternité de la Gendarmerie, Ministry of Health, Bangui, Central African Republic
| | | | - Aude Boulay
- Institut Pasteur of Paris, Unité d'Epidémiologie des Maladies Emergentes, Paris, France
| | - Jean Methode Moyen
- Malaria Programme Division, Ministry of Health, Bangui, Central African Republic
| | - Olga Sakanga
- Institut Pasteur of Bangui, International Network of Instituts Pasteur, Bangui, Central African Republic
| | - Lenaig Le-Fouler
- Institut Pasteur of Paris, Unité d'Epidémiologie des Maladies Emergentes, Paris, France
| | | | - Valerie Briand
- Inserm, Institut de Recherche pour le Développement, University of Bordeaux, Bordeaux, France
| | - Jean Pierre Lombart
- Institut Pasteur of Bangui, International Network of Instituts Pasteur, Bangui, Central African Republic
| | - Muriel Vray
- Institut Pasteur of Paris, Unité d'Epidémiologie des Maladies Emergentes, Paris, France.,National Institut of Medical Research, Paris, France
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Fontaine V, Duboscq-Bidot L, Jouve C, Hamlin M, Curjol A, Briand V, Janiak P, Hulot J, Pruniaux-Harnist M, Charron P, Villard E. Generation of iPSC line from MYH7 R403L mutation carrier with HCM and isogenic CRISPR/Cas9 corrected control. Archives of Cardiovascular Diseases Supplements 2021. [DOI: 10.1016/j.acvdsp.2021.04.143] [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: 10/21/2022]
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Kamaliddin C, Sutherland CJ, Houze S, Cottrell G, Briand V, Mogollon DC, Pillai DR. The role of ultra-sensitive molecular methods for detecting malaria - the broader perspective. Clin Infect Dis 2021; 73:e1387-e1390. [PMID: 33693719 DOI: 10.1093/cid/ciab221] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Indexed: 11/13/2022] Open
Abstract
Ultra-sensitive molecular diagnostics are lowering the limit of detection for malaria parasites in the blood and providing insights not captured by conventional tool such as microscopy and rapid antigen tests. Low-level malaria infections identified by molecular tools may influence clinical outcomes, transmission events, and elimination efforts. While many ultra-sensitive molecular methods require well-equipped laboratories, technologies such as loop-mediated isothermal amplification (LAMP) or recombinase polymerase amplification (RPA) provide more portable and analytically sensitive solutions. These tools may benefit asymptomatic patient screening, antenatal care, and elimination campaigns. We review the recent evidence, offer our perspective on the impact of these new tests and identify future research priorities.
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Affiliation(s)
- Claire Kamaliddin
- Department of Microbiology, Immunology, and Infectious Disease, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Colin J Sutherland
- Department of Infection Biology, Faculty of Infectious & Tropical Diseases, London School of Hygiene & Tropical Medicine, Keppel St, London, UK
| | - Sandrine Houze
- UMR261 - MERIT, IRD, Faculté de Pharmacie, Université de Paris, Paris, Île-de-France.,Centre National de Référence pour le Paludisme, Bichat-Claude Bernard Hospital, Paris, France
| | - Gilles Cottrell
- UMR261 - MERIT, IRD, Faculté de Pharmacie, Université de Paris, Paris, Île-de-France
| | - Valerie Briand
- Institut de Recherche pour le Développement (IRD), Inserm, UMR 1219, University of Bordeaux, Bordeaux, France
| | - Daniel Castaneda Mogollon
- Department of Microbiology, Immunology, and Infectious Disease, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Dylan R Pillai
- Department of Microbiology, Immunology, and Infectious Disease, Cumming School of Medicine, University of Calgary, AB, Canada.,Department of Medicine, Cumming School of Medicine, University of Calgary, AB, Canada.,Department of Pathology and Laboratory Medicine, Cumming School of Medicine, University of Calgary, AB, Canada
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5
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Reisqs J, Moreau A, Charrabi A, Briand V, Beauverger P, Richard S, Chevalier P. The PPAR-γ inhibitor T0070907 normalizes impaired electro-mechanical properties of human-induced pluripotent stem cell-derived cardiomyocytes in DSC2 arrhythmogenic cardiomyopathy. Archives of Cardiovascular Diseases Supplements 2020. [DOI: 10.1016/j.acvdsp.2020.03.139] [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: 11/16/2022]
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Fievet N, Ezinmegnon S, Agbota G, Sossou D, Ladekpo R, Gbedande K, Briand V, Cottrell G, Vachot L, Yugueros Marcos J, Pachot A, Textoris J, Blein S, Lausten-Thomsen U, Massougbodji A, Bagnan L, Tchiakpe N, d'Almeida M, Alao J, Dossou-Dagba I, Tissieres P. SEPSIS project: a protocol for studying biomarkers of neonatal sepsis and immune responses of infants in a malaria-endemic region. BMJ Open 2020; 10:e036905. [PMID: 32709653 PMCID: PMC7380952 DOI: 10.1136/bmjopen-2020-036905] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION Neonatal sepsis outreaches all causes of neonatal mortality worldwide and remains a major societal burden in low and middle income countries. In addition to limited resources, endemic morbidities, such as malaria and prematurity, predispose neonates and infants to invasive infection by altering neonatal immune response to pathogens. Nevertheless, thoughtful epidemiological, diagnostic and immunological evaluation of neonatal sepsis and the impact of gestational malaria have never been performed. METHODS AND ANALYSIS A prospective longitudinal multicentre follow-up of 580 infants from birth to 3 months of age in urban and suburban Benin will be performed. At delivery, and every other week, all children will be examined and clinically evaluated for occurrence of sepsis. At delivery, cord blood systematic analysis of selected plasma and transcriptomic biomarkers (procalcitonin, interleukin (IL)-6, IL-10, IP10, CD74 and CX3CR1) associated with sepsis pathophysiology will be evaluated in all live births as well as during the follow-up, and when sepsis will be suspected. In addition, whole blood response to selected innate stimuli and extensive peripheral blood mononuclear cells phenotypic characterisation will be performed. Reference intervals specific to sub-Saharan neonates will be determined from this cohort and biomarkers performances for neonatal sepsis diagnosis and prognosis tested. ETHICS AND DISSEMINATION Ethical approval has been obtained from the Comité d'Ethique de la Recherche - Institut des Sciences Biomédicales Appliquées (CER-ISBA 85 - 5 April 2016, extended on 3 February 2017). Results will be disseminated through international presentations at scientific meetings and publications in peer-reviewed journals. TRIAL REGISTRATION NUMBER ClinicalTrials.gov registration number: NCT03780712.
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Affiliation(s)
- Nadine Fievet
- Institut de Recherche pour le Développement (IRD), Mère et enfant face aux infections tropicales (UMR216), Paris, France
- COMUE Sorbonne Paris Cité, Universite Paris Descartes, Paris, Île-de-France, France
| | - Sem Ezinmegnon
- Department of Microbiology, Institut de Biologie Integrative de la Cellule, Gif-sur-Yvette, France
- Medical Diagnostic Discovery Department (MD3), bioMerieux SA, Marcy l'Etoile, Rhône-Alpes, France
| | - Gino Agbota
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, Paris, France
- Institut de Recherche Clinique du Bénin, Calavi, Benin
| | - Darius Sossou
- Institut de Recherche Clinique du Bénin, Calavi, Benin
| | | | - Komi Gbedande
- Institut de Recherche Clinique du Benin, Cotonou, Benin
| | - Valerie Briand
- Institut de Recherche pour le Développement (IRD), Mère et enfant face aux infections tropicales (UMR216), Paris, France
| | - Gilles Cottrell
- UMR216, Institut de Recherche pour le Développement, Cotonou, Benin
- Faculté de Pharmacie, Université Paris Descartes, Paris, France
| | - Laurence Vachot
- Medical Diagnostic Discovery Department (MD3), bioMerieux SA, Marcy l'Etoile, Rhône-Alpes, France
| | - Javier Yugueros Marcos
- Medical Diagnostic Discovery Department (MD3), bioMerieux SA, Marcy l'Etoile, Rhône-Alpes, France
| | - Alexandre Pachot
- EA 7426 Pathophysiology of Injury-Induced Immunosuppression, bioMerieux, LYON cedex 03, France
| | - Julien Textoris
- EA 7426 Pathophysiology of Injury-Induced Immunosuppression, bioMerieux, LYON cedex 03, France
- Département d'Anesthésie et de Réanimation, Hospices Civils de Lyon, LYON Cedex 03, France
| | - Sophie Blein
- Medical Diagnostic Discovery Department (MD3), bioMerieux SA, Marcy l'Etoile, Rhône-Alpes, France
- EA 7426 Pathophysiology of Injury-Induced Immunosuppression, bioMerieux, LYON cedex 03, France
| | - Ulrik Lausten-Thomsen
- Pediatric Intensive Care, Hopitaux Universitaires Paris-Sud, Le Kremlin-Bicetre, France
| | | | - Lehila Bagnan
- Institut de Recherche Clinique du Bénin, Calavi, Benin
- Department of Paediatric, National University Hospital Center (CNHU), Cotonou, Benin
| | - Nicole Tchiakpe
- Institut de Recherche Clinique du Bénin, Calavi, Benin
- Department of Paediatric, Centre Hospitalier Universitaire de la Mère et de l'Enfant Lagune (CHUMEL), Cotonou, Benin
| | - Marceline d'Almeida
- Department of Paediatric, National University Hospital Center (CNHU), Cotonou, Benin
- Institut de Recherche Clinique du Benin, Calavi, Île-de-France, Benin
| | | | | | - Pierre Tissieres
- Department of Microbiology, Institut de Biologie Integrative de la Cellule, Gif-sur-Yvette, France
- Pediatric Intensive Care, Hopitaux Universitaires Paris-Sud, Le Kremlin-Bicetre, France
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Fonseca AM, González R, Bardají A, Jairoce C, Rupérez M, Jiménez A, Quintó L, Cisteró P, Vala A, Sacoor C, Gupta H, Hegewisch-Taylor J, Brew J, Ndam NT, Kariuki S, López M, Dobaño C, Chitnis CE, Ouma P, Ramharter M, Abdulla S, Aponte JJ, Massougbodji A, Briand V, Mombo-Ngoma G, Desai M, Cot M, Nhacolo A, Sevene E, Macete E, Menéndez C, Mayor A. VAR2CSA Serology to Detect Plasmodium falciparum Transmission Patterns in Pregnancy. Emerg Infect Dis 2020; 25:1851-1860. [PMID: 31538557 PMCID: PMC6759269 DOI: 10.3201/eid2510.181177] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Pregnant women constitute a promising sentinel group for continuous monitoring of malaria transmission. To identify antibody signatures of recent Plasmodium falciparum exposure during pregnancy, we dissected IgG responses against VAR2CSA, the parasite antigen that mediates placental sequestration. We used a multiplex peptide-based suspension array in 2,354 samples from pregnant women from Mozambique, Benin, Kenya, Gabon, Tanzania, and Spain. Two VAR2CSA peptides of limited polymorphism were immunogenic and targeted by IgG responses readily boosted during infection and with estimated half-lives of <2 years. Seroprevalence against these peptides reflected declines and rebounds of transmission in southern Mozambique during 2004–2012, reduced exposure associated with use of preventive measures during pregnancy, and local clusters of transmission that were missed by detection of P. falciparum infections. These data suggest that VAR2CSA serology can provide a useful adjunct for the fine-scale estimation of the malaria burden among pregnant women over time and space.
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MESH Headings
- Adult
- Antibodies, Protozoan/immunology
- Antigens, Protozoan/blood
- Antigens, Protozoan/immunology
- Benin/epidemiology
- Female
- Gabon/epidemiology
- Humans
- Immunoglobulin G/immunology
- Kenya/epidemiology
- Malaria, Falciparum/complications
- Malaria, Falciparum/diagnosis
- Malaria, Falciparum/epidemiology
- Malaria, Falciparum/transmission
- Mozambique/epidemiology
- Plasmodium falciparum/immunology
- Pregnancy
- Pregnancy Complications, Parasitic/blood
- Pregnancy Complications, Parasitic/diagnosis
- Pregnancy Complications, Parasitic/epidemiology
- Serologic Tests/methods
- Spain/epidemiology
- Tanzania/epidemiology
- Young Adult
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Bottger C, Bernard L, Briand V, Bougouma C, Triendebeogo J, Ridde V. Primary healthcare providers' practices related to non-malarial acute febrile illness in Burkina Faso. Trans R Soc Trop Med Hyg 2019; 111:555-563. [PMID: 29509953 DOI: 10.1093/trstmh/try009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 01/19/2018] [Indexed: 11/13/2022] Open
Abstract
Background In Africa, fever is the main reason for consultation, with malaria playing a prominent role. Studies have reported that the widespread use of rapid diagnostic tests for malaria, implemented since 2010, has revealed an increasing proportion of non-malaria acute febrile illnesses (NMAFI). It is an important public health issue because evidence shows that mortality is higher among patients presenting with non-malarial fever than among those with malaria. Methods This cross-sectional study assessed the professional practices of healthcare providers in the management of NMAFI in urban and rural sites in Burkina Faso. Data was collected from 286 healthcare providers through a questionnaire based on the clinical situation in 2014. Factors have been associated using a hierarchical linear mixed model with random intercepts to model dependence of outcomes for healthcare providers working on the same site. Results Survey results showed limited knowledge about management of NMAFI, global survey score on General Practice Indicator being 60% (36.02/60.00). This gap was more evident at the admission and diagnosis level. The study's population from rural areas had better survey score than that of urban areas concerning the respect of adequacy diagnosis, treatment and use of antibiotics in NMAFI, 15.71 vs 13.93 mean score (p=0.01) (75 vs 66% on a 0 to 100% scale, with 100% being the best). Overall, more educated participants performed relatively better. A total of 46% (134/286) of participants felt that they needed training in at least one of the fever-related issues. Conclusions Increased awareness and knowledge of management for NMAFI are urgently required in Burkina Faso. This must be done through regular supervision and training courses targeted specifically at primary healthcare providers.
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Affiliation(s)
- C Bottger
- School of Public Health, Université de Montréal (ESPUM), C.P. 6128, Succ. C.V., Montreal, Qc, H3C 3J7.,Université de Montréal Public Health Research Institute (IRSPUM), C.P. 6128, Succ. CV., Montréal, Qc., H3C 3J7, Canada
| | - L Bernard
- Faculty of Nursing, Université de Montréal, C.P. 6128, Succ. CV., Montreal, Qc, H3C 3J7, Canada
| | - V Briand
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Université Paris Descartes, Paris, France
| | - C Bougouma
- Ministère de la santé du Burkina Faso, Programme national de lutte contre les Maladies Tropicales Négligées, 03 BP: 7009 OUAGADOUGOU 03
| | - J Triendebeogo
- Jhpiego an affiliate of John Hopkins University, Burkina Faso
| | - V Ridde
- Université de Montréal Public Health Research Institute (IRSPUM), C.P. 6128, Succ. CV., Montréal, Qc., H3C 3J7, Canada.,IRD (French Institute For Research on sustainable Development), CEPED (IRD-Université Paris Descartes), Universités Paris Sorbonne Cités, ERL INSERM SAGESUD, France
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9
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Bancone G, Menard D, Khim N, Kim S, Canier L, Nguong C, Phommasone K, Mayxay M, Dittrich S, Vongsouvath M, Fievet N, Le Hesran JY, Briand V, Keomany S, Newton PN, Gorsawun G, Tardy K, Chu CS, Rattanapalroj O, Dong LT, Quang HH, Tam-Uyen N, Thuy-Nhien N, Hien TT, Kalnoky M, Nosten F. Molecular characterization and mapping of glucose-6-phosphate dehydrogenase (G6PD) mutations in the Greater Mekong Subregion. Malar J 2019; 18:20. [PMID: 30674319 PMCID: PMC6343352 DOI: 10.1186/s12936-019-2652-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 01/16/2019] [Indexed: 12/31/2022] Open
Abstract
Background Plasmodium vivax malaria elimination can only be achieved by the deployment of 8-aminoquinolines (primaquine and tafenoquine) in combination with ACT to kill both blood and liver-stage parasites. However, primaquine and the other 8-aminoquinolines cause dose-dependent haemolysis in subjects with G6PD deficiency, an X-linked disorder of red blood cells that is very common in populations living in tropical and subtropical areas. In order to inform safer use of 8-aminoquinolines in the Greater Mekong Subregion, a multi-centre study was carried out to assess the prevalence of G6PD deficiency and to identify the main G6PD variants in samples collected in Cambodia, Lao PDR, Myanmar, Thailand and Vietnam. Methods Blood samples were collected in the five countries during National Malaria Surveys or during Population Surveys. During Population Surveys samples were characterized for G6PD phenotype using the Fluorescent Spot Test. Samples were then genotyped for a panel of G6PD mutations. Results G6PD deficiency was found to be common in the region with an overall mean prevalence of deficient or mutated hemizygous males of 14.0%, ranging from a mean 7.3% in Thailand, 8.1% in Lao PDR, 8.9% in Vietnam, 15.8% in Myanmar and 18.8% in Cambodia. Mahidol and Viangchan mutations were the most common and widespread variants found among the nine investigated. Conclusions Owing to the high prevalence of G6PD deficiency in the Greater Mekong Subregion, strategies for vivax malaria elimination should include point-of-care G6PD testing (both qualitative and quantitative) to allow safe and wide treatment with 8-aminoquinolines. Electronic supplementary material The online version of this article (10.1186/s12936-019-2652-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Germana Bancone
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand. .,Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
| | - Didier Menard
- Malaria Molecular Epidemiology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia.,Malaria Genetics and Resistance Group, Institut Pasteur, Paris, France
| | - Nimol Khim
- Malaria Molecular Epidemiology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Saorin Kim
- Malaria Molecular Epidemiology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Lydie Canier
- Malaria Molecular Epidemiology Unit, Institut Pasteur du Cambodge, Phnom Penh, Cambodia
| | - Chea Nguong
- National Centre for Parasitology, Entomology and Malaria Control (CNM), Phnom Penh, Cambodia
| | - Koukeo Phommasone
- Microbiology Laboratory, Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Vientiane, Lao People's Democratic Republic
| | - Mayfong Mayxay
- Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.,Microbiology Laboratory, Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Vientiane, Lao People's Democratic Republic.,Institute of Research and Education Development, University of Health Sciences, Ministry of Health, Vientiane, Lao People's Democratic Republic
| | - Sabine Dittrich
- Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.,Microbiology Laboratory, Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Vientiane, Lao People's Democratic Republic.,Foundation for Innovative New Diagnostics (FIND), Geneva, Switzerland
| | - Malavanh Vongsouvath
- Microbiology Laboratory, Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Vientiane, Lao People's Democratic Republic
| | - Nadine Fievet
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Paris-5 University, Sorbonne Paris Cité, Paris, France
| | - Jean-Yves Le Hesran
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Paris-5 University, Sorbonne Paris Cité, Paris, France
| | - Valerie Briand
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Paris-5 University, Sorbonne Paris Cité, Paris, France
| | - Sommay Keomany
- Salavan Provincial Hospital, Salavan, Lao People's Democratic Republic
| | - Paul N Newton
- Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.,Microbiology Laboratory, Lao-Oxford-Mahosot Hospital-Wellcome Trust Research Unit (LOMWRU), Vientiane, Lao People's Democratic Republic
| | - Gornpan Gorsawun
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand
| | - Kaelan Tardy
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand
| | - Cindy S Chu
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand.,Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | | | - Le Thanh Dong
- Institute of Malariology, Parasitology and Entomology - Ho Chi Minh City (IMPE-HCM), Ho Chi Minh City, Vietnam
| | - Huynh Hong Quang
- Institute of Malariology, Parasitology and Entomology - Quy Nhon (IMPE-QN), Quy Nhon, Vietnam
| | - Nguyen Tam-Uyen
- Oxford University Clinical Research Unit, Wellcome Trust Asia Program, in partnership with Hospital For Tropical Diseases (HTD), Ho Chi Minh City, Vietnam
| | - Nguyen Thuy-Nhien
- Oxford University Clinical Research Unit, Wellcome Trust Asia Program, in partnership with Hospital For Tropical Diseases (HTD), Ho Chi Minh City, Vietnam
| | - Tran Tinh Hien
- Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.,Oxford University Clinical Research Unit, Wellcome Trust Asia Program, in partnership with Hospital For Tropical Diseases (HTD), Ho Chi Minh City, Vietnam
| | | | - Francois Nosten
- Shoklo Malaria Research Unit, Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Mae Sot, Thailand.,Centre for Tropical Medicine & Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
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10
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Agbota G, Bodeau-Livinec F, Accrombessi M, Ahouayito U, Fievet N, Cot M, Briand V. Maternal nutritional status before and during pregnancy and child’s early neurocognitive development. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky212.708] [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: 11/14/2022] Open
Affiliation(s)
- G Agbota
- UMR216-MERIT French National Research Institute for Sustainable Development (IRD) Université Paris Descartes Paris France, Paris, France
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE) Cotonou Benin, Paris, France
| | - F Bodeau-Livinec
- Obstetrical Perinatal and Pediatric Epidemiology Research Team Centre for Epidemiology and Biostatistics (U1153-EPOPé) National Institute for Health and Medical Research (INSERM) Université Paris, Descartes Paris, France
- Département Méthodes Quantitatives, Rennes, France
| | - M Accrombessi
- UMR216-MERIT French National Research Institute for Sustainable Development (IRD) Université Paris Descartes Paris France, Paris, France
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE) Cotonou Benin, Paris, France
| | - U Ahouayito
- Centre d’Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l’Enfance (CERPAGE) Cotonou Benin, Paris, France
| | - N Fievet
- UMR216-MERIT French National Research Institute for Sustainable Development (IRD) Université Paris Descartes Paris France, Paris, France
| | - M Cot
- UMR216-MERIT French National Research Institute for Sustainable Development (IRD) Université Paris Descartes Paris France, Paris, France
| | - V Briand
- UMR216-MERIT French National Research Institute for Sustainable Development (IRD) Université Paris Descartes Paris France, Paris, France
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11
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Cates JE, Unger HW, Briand V, Fievet N, Valea I, Tinto H, D’Alessandro U, Landis SH, Adu-Afarwuah S, Dewey KG, ter Kuile FO, Desai M, Dellicour S, Ouma P, Gutman J, Oneko M, Slutsker L, Terlouw DJ, Kariuki S, Ayisi J, Madanitsa M, Mwapasa V, Ashorn P, Maleta K, Mueller I, Stanisic D, Schmiegelow C, Lusingu JPA, van Eijk AM, Bauserman M, Adair L, Cole SR, Westreich D, Meshnick S, Rogerson S. Malaria, malnutrition, and birthweight: A meta-analysis using individual participant data. PLoS Med 2017; 14:e1002373. [PMID: 28792500 PMCID: PMC5549702 DOI: 10.1371/journal.pmed.1002373] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 07/11/2017] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Four studies previously indicated that the effect of malaria infection during pregnancy on the risk of low birthweight (LBW; <2,500 g) may depend upon maternal nutritional status. We investigated this dependence further using a large, diverse study population. METHODS AND FINDINGS We evaluated the interaction between maternal malaria infection and maternal anthropometric status on the risk of LBW using pooled data from 14,633 pregnancies from 13 studies (6 cohort studies and 7 randomized controlled trials) conducted in Africa and the Western Pacific from 1996-2015. Studies were identified by the Maternal Malaria and Malnutrition (M3) initiative using a convenience sampling approach and were eligible for pooling given adequate ethical approval and availability of essential variables. Study-specific adjusted effect estimates were calculated using inverse probability of treatment-weighted linear and log-binomial regression models and pooled using a random-effects model. The adjusted risk of delivering a baby with LBW was 8.8% among women with malaria infection at antenatal enrollment compared to 7.7% among uninfected women (adjusted risk ratio [aRR] 1.14 [95% confidence interval (CI): 0.91, 1.42]; N = 13,613), 10.5% among women with malaria infection at delivery compared to 7.9% among uninfected women (aRR 1.32 [95% CI: 1.08, 1.62]; N = 11,826), and 15.3% among women with low mid-upper arm circumference (MUAC <23 cm) at enrollment compared to 9.5% among women with MUAC ≥ 23 cm (aRR 1.60 [95% CI: 1.36, 1.87]; N = 9,008). The risk of delivering a baby with LBW was 17.8% among women with both malaria infection and low MUAC at enrollment compared to 8.4% among uninfected women with MUAC ≥ 23 cm (joint aRR 2.13 [95% CI: 1.21, 3.73]; N = 8,152). There was no evidence of synergism (i.e., excess risk due to interaction) between malaria infection and MUAC on the multiplicative (p = 0.5) or additive scale (p = 0.9). Results were similar using body mass index (BMI) as an anthropometric indicator of nutritional status. Meta-regression results indicated that there may be multiplicative interaction between malaria infection at enrollment and low MUAC within studies conducted in Africa; however, this finding was not consistent on the additive scale, when accounting for multiple comparisons, or when using other definitions of malaria and malnutrition. The major limitations of the study included availability of only 2 cross-sectional measurements of malaria and the limited availability of ultrasound-based pregnancy dating to assess impacts on preterm birth and fetal growth in all studies. CONCLUSIONS Pregnant women with malnutrition and malaria infection are at increased risk of LBW compared to women with only 1 risk factor or none, but malaria and malnutrition do not act synergistically.
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Affiliation(s)
- Jordan E. Cates
- Department of Epidemiology, UNC-Chapel Hill, Chapel Hill, North Carolina, United States of America
- * E-mail:
| | - Holger W. Unger
- Department of Obstetrics and Gynaecology, Edinburgh Royal Infirmary, Edinburgh, United Kingdom
- Department of Medicine at the Doherty Institute, The University of Melbourne, Parkville, Victoria, Australia
| | - Valerie Briand
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Paris Descartes University, Paris, France
| | - Nadine Fievet
- UMR216-MERIT, French National Research Institute for Sustainable Development (IRD), Paris Descartes University, Paris, France
| | - Innocent Valea
- Unite de Recherche Clinique de Nanoro, Institut de Recherche en Sciences de la Santé-DRO, Bobo-Dioulasso, Burkina Faso
- Departement de Recherche Clinique, Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Halidou Tinto
- Unite de Recherche Clinique de Nanoro, Institut de Recherche en Sciences de la Santé-DRO, Bobo-Dioulasso, Burkina Faso
- Departement de Recherche Clinique, Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Umberto D’Alessandro
- Medical Research Council Unit, The Gambia; London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Sarah H. Landis
- Worldwide Epidemiology, GlaxoSmithKline, Uxbridge, United Kingdom
| | - Seth Adu-Afarwuah
- Department of Nutrition and Food Science, University of Ghana, Legon, Accra, Ghana
| | - Kathryn G. Dewey
- Department of Nutrition, University of California, Davis, California, United States of America
| | - Feiko O. ter Kuile
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Meghna Desai
- Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Stephanie Dellicour
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Peter Ouma
- Kenya Medical Research Institute (KEMRI)/ Centre for Global Health Research, Kisumu, Kenya
| | - Julie Gutman
- Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Martina Oneko
- Kenya Medical Research Institute (KEMRI)/ Centre for Global Health Research, Kisumu, Kenya
| | - Laurence Slutsker
- Malaria and Neglected Tropical Diseases, Center for Malaria Control and Elimination, PATH, Seattle, Washington, United States of America
| | - Dianne J. Terlouw
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi
| | - Simon Kariuki
- Kenya Medical Research Institute (KEMRI)/ Centre for Global Health Research, Kisumu, Kenya
| | - John Ayisi
- Kenya Medical Research Institute (KEMRI)/ Centre for Global Health Research, Kisumu, Kenya
| | - Mwayiwawo Madanitsa
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Victor Mwapasa
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Per Ashorn
- Center for Child Health Research University of Tampere School of Medicine and Tampere University Hospital, Tampere, Finland
| | - Kenneth Maleta
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Ivo Mueller
- Walter and Eliza Hall Institute, Parkville, Victoria, Australia
| | - Danielle Stanisic
- Institute for Glycomics, Griffith University, Gold Coast, Queensland, Australia
| | - Christentze Schmiegelow
- Centre for Medical Parasitology, Depart. Of Immunology and Microbiology, Faculty of Health Science, University of Copenhagen, Copenhagen, Denmark
| | - John P. A. Lusingu
- Centre for Medical Parasitology, Depart. Of Immunology and Microbiology, Faculty of Health Science, University of Copenhagen, Copenhagen, Denmark
- National Institute for Medical Research, Tanga Centre, Tanga, Tanzania
| | - Anna Maria van Eijk
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Melissa Bauserman
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, School of Medicine, UNC-Chapel Hill, Chapel Hill, North Carolina, United States of America
- Department of Nutrition, UNC-Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Linda Adair
- Department of Nutrition, UNC-Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Stephen R. Cole
- Department of Epidemiology, UNC-Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Daniel Westreich
- Department of Epidemiology, UNC-Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Steven Meshnick
- Department of Epidemiology, UNC-Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Stephen Rogerson
- Department of Medicine at the Doherty Institute, The University of Melbourne, Parkville, Victoria, Australia
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12
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Ndam NT, Mbuba E, González R, Cisteró P, Kariuki S, Sevene E, Rupérez M, Fonseca AM, Vala A, Maculuve S, Jiménez A, Quintó L, Ouma P, Ramharter M, Aponte JJ, Nhacolo A, Massougbodji A, Briand V, Kremsner PG, Mombo-Ngoma G, Desai M, Macete E, Cot M, Menéndez C, Mayor A. Resisting and tolerating P. falciparum in pregnancy under different malaria transmission intensities. BMC Med 2017; 15:130. [PMID: 28712360 PMCID: PMC5513247 DOI: 10.1186/s12916-017-0893-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 06/15/2017] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Resistance and tolerance to Plasmodium falciparum can determine the progression of malaria disease. However, quantitative evidence of tolerance is still limited. We investigated variations in the adverse impact of P. falciparum infections among African pregnant women under different intensities of malaria transmission. METHODS P. falciparum at delivery was assessed by microscopy, quantitative PCR (qPCR) and placental histology in 946 HIV-uninfected and 768 HIV-infected pregnant women from Benin, Gabon, Kenya and Mozambique. Resistance was defined by the proportion of submicroscopic infections and the levels of anti-parasite antibodies quantified by Luminex, and tolerance by the relationship of pregnancy outcomes with parasite densities at delivery. RESULTS P. falciparum prevalence by qPCR in peripheral and/or placental blood of HIV-uninfected Mozambican, Gabonese and Beninese women at delivery was 6% (21/340), 11% (28/257) and 41% (143/349), respectively. The proportion of peripheral submicroscopic infections was higher in Benin (83%) than in Mozambique (60%) and Gabon (55%; P = 0.033). Past or chronic placental P. falciparum infection was associated with an increased risk of preterm birth in Mozambican newborns (OR = 7.05, 95% CI 1.79 to 27.82). Microscopic infections were associated with reductions in haemoglobin levels at delivery among Mozambican women (-1.17 g/dL, 95% CI -2.09 to -0.24) as well as with larger drops in haemoglobin levels from recruitment to delivery in Mozambican (-1.66 g/dL, 95% CI -2.68 to -0.64) and Gabonese (-0.91 g/dL, 95% CI -1.79 to -0.02) women. Doubling qPCR-peripheral parasite densities in Mozambican women were associated with decreases in haemoglobin levels at delivery (-0.16 g/dL, 95% CI -0.29 to -0.02) and increases in the drop of haemoglobin levels (-0.29 g/dL, 95% CI -0.44 to -0.14). Beninese women had higher anti-parasite IgGs than Mozambican women (P < 0.001). No difference was found in the proportion of submicroscopic infections nor in the adverse impact of P. falciparum infections in HIV-infected women from Kenya (P. falciparum prevalence by qPCR: 9%, 32/351) and Mozambique (4%, 15/417). CONCLUSIONS The lowest levels of resistance and tolerance in pregnant women from areas of low malaria transmission were accompanied by the largest adverse impact of P. falciparum infections. Exposure-dependent mechanisms developed by pregnant women to resist the infection and minimise pathology can reduce malaria-related adverse outcomes. Distinguishing both types of defences is important to understand how reductions in transmission can affect malaria disease. TRIAL REGISTRATION ClinicalTrials.gov NCT00811421 . Registered 18 December 2008.
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Affiliation(s)
- Nicaise Tuikue Ndam
- Institut de Recherche pour le Développement (IRD), Paris, France.,COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Paris, France.,Faculté des Sciences de la Santé (FSS), Université d'Aboméy Calavi, Cotonou, Benin
| | - Emmanuel Mbuba
- Ifakara Health Institute (IHI), Bagamoyo Research and Training Centre (BRTC), Bagamoyo, Tanzania
| | - Raquel González
- ISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Hospital Clínic - Universitat de Barcelona, Barcelona, Spain.,Centro de Investigação em Saúde da Manhiça (CISM), Maputo, Mozambique
| | - Pau Cisteró
- ISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - Simon Kariuki
- Kenya Medical Research Institute (KEMRI)/Centre for Global Health Research, Kisumu, Kenya
| | - Esperança Sevene
- Centro de Investigação em Saúde da Manhiça (CISM), Maputo, Mozambique.,Universidade Eduardo Mondlane, Maputo, Mozambique
| | - María Rupérez
- ISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Hospital Clínic - Universitat de Barcelona, Barcelona, Spain.,Centro de Investigação em Saúde da Manhiça (CISM), Maputo, Mozambique
| | - Ana Maria Fonseca
- ISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Hospital Clínic - Universitat de Barcelona, Barcelona, Spain.,Graduate Program in Areas of Basic and Applied Biology, Universidade do Porto, Porto, Portugal
| | - Anifa Vala
- Centro de Investigação em Saúde da Manhiça (CISM), Maputo, Mozambique
| | - Sonia Maculuve
- Centro de Investigação em Saúde da Manhiça (CISM), Maputo, Mozambique
| | - Alfons Jiménez
- ISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Hospital Clínic - Universitat de Barcelona, Barcelona, Spain.,CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Llorenç Quintó
- Faculté des Sciences de la Santé (FSS), Université d'Aboméy Calavi, Cotonou, Benin
| | - Peter Ouma
- Kenya Medical Research Institute (KEMRI)/Centre for Global Health Research, Kisumu, Kenya
| | - Michael Ramharter
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Department of Medicine I, Division of Infectious Diseases and Tropical Medicine, Medical University of Vienna, Vienna, Austria.,Centre de Recherches Médicales de Lambaréné (CERMEL), Lambaréné, Gabon
| | - John J Aponte
- ISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Hospital Clínic - Universitat de Barcelona, Barcelona, Spain.,Centro de Investigação em Saúde da Manhiça (CISM), Maputo, Mozambique
| | - Arsenio Nhacolo
- Centro de Investigação em Saúde da Manhiça (CISM), Maputo, Mozambique
| | - Achille Massougbodji
- Faculté des Sciences de la Santé (FSS), Université d'Aboméy Calavi, Cotonou, Benin
| | - Valerie Briand
- Institut de Recherche pour le Développement (IRD), Paris, France
| | - Peter G Kremsner
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Centre de Recherches Médicales de Lambaréné (CERMEL), Lambaréné, Gabon
| | - Ghyslain Mombo-Ngoma
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany.,Centre de Recherches Médicales de Lambaréné (CERMEL), Lambaréné, Gabon
| | - Meghna Desai
- Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Eusebio Macete
- Centro de Investigação em Saúde da Manhiça (CISM), Maputo, Mozambique
| | - Michel Cot
- Institut de Recherche pour le Développement (IRD), Paris, France
| | - Clara Menéndez
- ISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Hospital Clínic - Universitat de Barcelona, Barcelona, Spain.,Centro de Investigação em Saúde da Manhiça (CISM), Maputo, Mozambique
| | - Alfredo Mayor
- ISGlobal, Barcelona Ctr. Int. Health Res. (CRESIB), Hospital Clínic - Universitat de Barcelona, Barcelona, Spain. .,Centro de Investigação em Saúde da Manhiça (CISM), Maputo, Mozambique.
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13
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Unger HW, Cates JE, Gutman J, Briand V, Fievet N, Valea I, Tinto H, d'Alessandro U, Landis SH, Adu-Afarwuah S, Dewey KG, Ter Kuile F, Dellicour S, Ouma P, Slutsker L, Terlouw DJ, Kariuki S, Ayisi J, Nahlen B, Desai M, Madanitsa M, Kalilani-Phiri L, Ashorn P, Maleta K, Mueller I, Stanisic D, Schmiegelow C, Lusingu J, Westreich D, van Eijk AM, Meshnick S, Rogerson S. Maternal Malaria and Malnutrition (M3) initiative, a pooled birth cohort of 13 pregnancy studies in Africa and the Western Pacific. BMJ Open 2016; 6:e012697. [PMID: 28003287 PMCID: PMC5223676 DOI: 10.1136/bmjopen-2016-012697] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
PURPOSE The Maternal Malaria and Malnutrition (M3) initiative has pooled together 13 studies with the hope of improving understanding of malaria-nutrition interactions during pregnancy and to foster collaboration between nutritionists and malariologists. PARTICIPANTS Data were pooled on 14 635 singleton, live birth pregnancies from women who had participated in 1 of 13 pregnancy studies. The 13 studies cover 8 countries in Africa and Papua New Guinea in the Western Pacific conducted from 1996 to 2015. FINDINGS TO DATE Data are available at the time of antenatal enrolment of women into their respective parent study and at delivery. The data set comprises essential data such as malaria infection status, anthropometric assessments of maternal nutritional status, presence of anaemia and birth weight, as well as additional variables such gestational age at delivery for a subset of women. Participating studies are described in detail with regard to setting and primary outcome measures, and summarised data are available from each contributing cohort. FUTURE PLANS This pooled birth cohort is the largest pregnancy data set to date to permit a more definite evaluation of the impact of plausible interactions between poor nutritional status and malaria infection in pregnant women on fetal growth and gestational length. Given the current comparative lack of large pregnancy cohorts in malaria-endemic settings, compilation of suitable pregnancy cohorts is likely to provide adequate statistical power to assess malaria-nutrition interactions, and could point towards settings where such interactions are most relevant. The M3 cohort may thus help to identify pregnant women at high risk of adverse outcomes who may benefit from tailored intensive antenatal care including nutritional supplements and alternative or intensified malaria prevention regimens, and the settings in which these interventions would be most effective.
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Affiliation(s)
- Holger W Unger
- Department of Obstetrics and Gynaecology, Edinburgh Royal Infirmary, Edinburgh, UK
- Department of Medicine at the Doherty Institute, The University of Melbourne, Parkville, Victoria, Australia
| | - Jordan E Cates
- Department of Epidemiology, UNC-Chapel Hill, Chapel Hill, North Carolina, USA
| | - Julie Gutman
- Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Valerie Briand
- Institut de Recherche pour le Développement (IRD), Mère et enfant face aux infections tropicales (UMR216), Paris, France
- COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France
| | - Nadine Fievet
- Institut de Recherche pour le Développement (IRD), Mère et enfant face aux infections tropicales (UMR216), Paris, France
- COMUE Sorbonne Paris Cité, Faculté de Pharmacie, Université Paris Descartes, Paris, France
| | - Innocent Valea
- Unite de Recherche Clinique de Nanoro, Institut de Recherche en Sciences de la Santé-DRO, Bobo-Dioulasso, Burkina Faso
- Departement de Recherche Clinique, Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Halidou Tinto
- Unite de Recherche Clinique de Nanoro, Institut de Recherche en Sciences de la Santé-DRO, Bobo-Dioulasso, Burkina Faso
- Departement de Recherche Clinique, Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Umberto d'Alessandro
- Medical Research Council Unit, The Gambia
- London School of Hygiene and Tropical Medicine, UK
- Institute of Tropical Medicine, Antwerp, Belgium
| | | | - Seth Adu-Afarwuah
- Department of Nutrition and Food Science, University of Ghana, Legon, Accra, Ghana
| | - Kathryn G Dewey
- Department of Nutrition, University of California, Davis, California, USA
| | - Feiko Ter Kuile
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Stephanie Dellicour
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Peter Ouma
- Kenya Medical Research Institute (KEMRI)/Center for Global Health Research, Kisumu, Kenya
| | - Laurence Slutsker
- Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Dianne J Terlouw
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme Liverpool School of Tropical Medicine, Liverpool, UK
| | - Simon Kariuki
- Kenya Medical Research Institute (KEMRI)/Center for Global Health Research, Kisumu, Kenya
| | - John Ayisi
- Kenya Medical Research Institute (KEMRI)/Center for Global Health Research, Kisumu, Kenya
| | | | - Meghna Desai
- Malaria Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Mwayi Madanitsa
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Linda Kalilani-Phiri
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Per Ashorn
- Tampere Center for Child Health Research, Tampere, Finland
- Department for Pediatrics, University of Tampere and Tampere University Hospital, Tampere, Finland
| | - Kenneth Maleta
- School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
| | - Ivo Mueller
- Walter and Eliza Hall Institute, Parkville, Victoria, Australia
| | - Danielle Stanisic
- Institute for Glycomics, Griffith University, Gold Coast, Queensland, Australia
| | - Christentze Schmiegelow
- Faculty of Health Science, Department of Immunology and Microbiology, Centre for Medical Parasitology, University of Copenhagen, Copenhagen, Denmark
| | - John Lusingu
- Faculty of Health Science, Department of Immunology and Microbiology, Centre for Medical Parasitology, University of Copenhagen, Copenhagen, Denmark
- National Institute for Medical Research, Tanga Centre, Tanga, Tanzania
| | - Daniel Westreich
- Department of Epidemiology, UNC-Chapel Hill, Chapel Hill, North Carolina, USA
| | - Anna Maria van Eijk
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Steven Meshnick
- Department of Epidemiology, UNC-Chapel Hill, Chapel Hill, North Carolina, USA
| | - Stephen Rogerson
- Department of Medicine at the Doherty Institute, The University of Melbourne, Parkville, Victoria, Australia
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Bodeau-Livinec F, Briand V, Berger J, Xiong X, Massougbodji A, Day KP, Cot M. Maternal anemia in Benin: prevalence, risk factors, and association with low birth weight. Am J Trop Med Hyg 2011; 85:414-20. [PMID: 21896797 DOI: 10.4269/ajtmh.2011.10-0599] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
We studied the prevalence of anemia during pregnancy and its relationship with low birth weight (LBW; birth weight < 2,500 g) in Benin. We analyzed 1,508 observations from a randomized controlled trial conducted from 2005 to 2008 showing equivalence on the risk of LBW between two drugs for Intermittent Preventive Treatment of malaria during pregnancy (IPTp). Despite IPTp, helminth prophylaxis, and iron and folic acid supplementations, the proportions of women with severe anemia (hemoglobin [Hb] concentration < 80 g/L) and anemia (Hb < 110 g/L) were high throughout pregnancy: 3.9% and 64.7% during the second and 3.7% and 64.1% during the third trimester, but 2.5% and 39.6% at the onset of labor, respectively. Compared with women without anemia (Hb ≥ 110 g/L) during the third trimester, women with severe anemia (Hb < 80 g/L) were at higher risk of LBW after adjustment for potential confounding factors (prevalence ratio [PR] = 2.8; 95% confidence interval [1.4-5.6]).
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Koura KG, Briand V, Massougbodji A, Chippaux JP, Cot M, Garcia A. [Determination of prevalence and etiology of anemia during pregnancy in southern Benin, in conjunction with revision of national management policy]. Med Trop (Mars) 2011; 71:63-67. [PMID: 21585095] [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] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
BACKGROUND Anemia during pregnancy is a serious public health problem. Control requires identification of the underlying etiology. The objective of this study carried out in conjunction with revision of the national policy for the protection of pregnant women in Benin was to determine the prevalence and etiology of anemia. METHODS From October 2006 to April 2007, 300 pregnant women were examined at two maternities in Ouidah, Benin. Sociodemographic and environmental characteristics, dietary data, behavioral practices, and history of malaria infection during pregnancy were collected. Blood and stool samples were tested for the presence of malaria parasites and intestinal worms respectively. Hemoglobin and ferritinemia levels were also determined. RESULTS The prevalence of anemia (Hb < 11 g/dL) was 65.7% while that of malaria and intestinal worms was 4.3% and 8% respectively. Iron deficiency was not found. A borderline significant correlation was found between helminthiasis and anemia. No correlation was found between anemia and malaria. These findings indicate that kits progressively introduced by the health system during the study period provided relatively effective care. CONCLUSION This study demonstrates a high prevalence of moderate anemia during pregnancy and suggests that it is mainly due to intestinal helminthiasis. These findings underline the importance of preventive antihelminthic treatment during pregnancy.
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Affiliation(s)
- K G Koura
- Université Pierre Marie Curie, Paris, France.
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Nicolai A, Filser J, Briand V, Charrier M. Seasonally contrasting life-history strategies in the land snail Cornu aspersum: physiological and ecological implications. CAN J ZOOL 2010. [DOI: 10.1139/z10-066] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
When a life history is characterized by both seasonality in reproduction and seasonality in offspring fitness, trade-offs in reproductive traits might be adjustments to seasonal time constraints to optimize reproductive success. Therefore, we compared in the laboratory the trade-offs in reproductive traits between early (after maturity) and delayed (after dormancy) reproduction in young land snails Cornu aspersum (Müller, 1774) (syn. Helix aspersa ), depending on food energy content. We also investigated the maternal investment in reproductive output in both breeding periods. After attaining maturity, snails produced single clutches with many small eggs, which resulted, in contrast to previous studies, in large offspring with a low hatching rate owing to high within-clutch cannibalism. The young cannibals may have a higher survival probability in the following hibernation. Snails starting to reproduce after hibernation had smaller clutches of larger eggs, resulting in high quantity of lighter offspring. The clutch mass was positively correlated with maternal mass in snails reproducing after having attained maturity and negatively correlated in snails reproducing after hibernation. Multiple oviposition occurred only after hibernation, thereby enhancing reproductive success. An energy-rich diet did not affect reproductive strategies. Further studies should focus on seasonal plasticity of reproductive strategies in natural populations of C. aspersum and investigate survival probabilities of breeders and juveniles in an evolutionary context.
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Affiliation(s)
- A. Nicolai
- University of Rennes 1, Unité Mixte de Recherche, Centre National de la Recherche Scientifique N° 6553 EcoBio, Campus de Beaulieu, F-35042 Rennes CEDEX, France
- University of Economy and Environment Nürtingen-Geislingen, IAF, Schelmenwasen 4-8, D-72622 Nürtingen, Germany
- University of Bremen, UFT, Department of Ecology, Leobener Strasse, Bremen D-28359, Germany
| | - J. Filser
- University of Rennes 1, Unité Mixte de Recherche, Centre National de la Recherche Scientifique N° 6553 EcoBio, Campus de Beaulieu, F-35042 Rennes CEDEX, France
- University of Economy and Environment Nürtingen-Geislingen, IAF, Schelmenwasen 4-8, D-72622 Nürtingen, Germany
- University of Bremen, UFT, Department of Ecology, Leobener Strasse, Bremen D-28359, Germany
| | - V. Briand
- University of Rennes 1, Unité Mixte de Recherche, Centre National de la Recherche Scientifique N° 6553 EcoBio, Campus de Beaulieu, F-35042 Rennes CEDEX, France
- University of Economy and Environment Nürtingen-Geislingen, IAF, Schelmenwasen 4-8, D-72622 Nürtingen, Germany
- University of Bremen, UFT, Department of Ecology, Leobener Strasse, Bremen D-28359, Germany
| | - M. Charrier
- University of Rennes 1, Unité Mixte de Recherche, Centre National de la Recherche Scientifique N° 6553 EcoBio, Campus de Beaulieu, F-35042 Rennes CEDEX, France
- University of Economy and Environment Nürtingen-Geislingen, IAF, Schelmenwasen 4-8, D-72622 Nürtingen, Germany
- University of Bremen, UFT, Department of Ecology, Leobener Strasse, Bremen D-28359, Germany
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Briand V, Watier L, Fournier P, Abrahamowicz M, Dumont A. Les déterminants individuels et institutionnels du recours à la césarienne au Sénégal et au Mali. Rev Epidemiol Sante Publique 2010. [DOI: 10.1016/j.respe.2010.06.089] [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: 11/17/2022] Open
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Abstract
Co-infection with malaria and HIV in pregnant women is particularly common in sub-Saharan Africa and has serious consequences for both mother and newborn child. Numerous studies have been published on the effects in pregnancy of HIV on malaria infection and on the effects of malaria on HIV infection. The increased prevalence and intensity of parasitaemia (placental and peripheral infection and parasite density) in HIV-infected women is well established. Similarly, malaria infection seems to be associated with higher viral loads. However, there is still uncertainty as to the influence of malaria on the clinical course of HIV infection, mother-to-child transmission of HIV, and the consequences of co-infection on post-neonatal infant morbidity and mortality. These questions require further investigation. In terms of prevention, intermittent preventive treatment with two doses of sulfadoxine-pyrimethamine (SP) has been found less effective in preventing malaria in HIV-infected than uninfected women, and a higher dosage (such as monthly SP) has been recommended. Regarding malaria, there is also a lack of clear recommendations for women taking daily cotrimoxazole prophylaxis, and anti-malarial-anti-retroviral interactions are not well understood. Multi-centre clinical trials should be undertaken to investigate effective, coherent and well-tolerated strategies to prevent malaria in HIV-infected women. Safe alternatives to SP should be identified and evaluated rapidly. Finally, a central pharmaco-vigilance network should be instituted to report adverse effects.
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Affiliation(s)
- V Briand
- IRD, UR 010, Université Paris Descartes, Paris, France
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Koura G, Briand V, Garcia A, Massougbodji A, Cot M. Infections helminthiques intestinales chez la femme enceinte : prévalence et impact sur l’anémie maternelle. Rev Epidemiol Sante Publique 2008. [DOI: 10.1016/j.respe.2008.06.174] [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: 10/21/2022] Open
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Patte R, Drouvot V, Quenon JL, Denic L, Briand V, Patris S. Prevalence of hospital-acquired infections in a home care setting. J Hosp Infect 2005; 59:148-51. [PMID: 15620449 DOI: 10.1016/j.jhin.2004.09.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2004] [Accepted: 09/04/2004] [Indexed: 10/26/2022]
Abstract
The aim of this point-prevalence study was to determine the prevalence of hospital-acquired infections (HAIs) by site of infection and the associated risk factors in a 'hospital at home' setting in Paris. All patients undergoing a care procedure with a risk of infection and who had been in home care for more than 48 h on the day of the survey (5 June 2000) were enrolled. A standard questionnaire was completed by nurses, midwives and family doctors. Overall, 6.1% of patients had at least one HAI [95% confidence intervals (CI): 3.7-8.5%] and there were 6.3 infections per 100 patients (infections/infected patients ratio: 1.04). The most common site of infection was the urinary tract (50.0%), followed by the skin (37.9%). Infection rates were 3.2% and 2.4%, respectively. Escherichia coli (29.4%), Staphylococcus aureus (29.4%) and Enterococcus spp. (17.6%) were the predominant micro-organisms. In multivariate analysis, the most significant independent risk factor was the presence of a urinary catheter (odds ratio=15.9, 95%CI: 6.3-40.1, P<0.0001). In conclusion, this prevalence study has provided a better understanding of the types of patient receiving 'hospital at home' care, an insight into risk factors for HAIs in home care, and a basis for improving surveillance and prevention.
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Affiliation(s)
- R Patte
- Hospitalisation à Domicile, Assistance Publique, Hôpitaux de Paris, 47 boulevard de l'Hôpital, 75013 Paris, France
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22
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Briand V, Boutou O, Slama R, Aussel L, Spira A. [Use of national French health insurance register to identify the current address of a cohort]. Rev Epidemiol Sante Publique 2003; 51:191-9. [PMID: 12876505] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023] Open
Abstract
BACKGROUND The aim of the study was to assess the efficiency of the Registre National Inter-régimes des bénéficaires de l'Assurance-Maladie (RNIAM), which is the French register of health insurance, in order to identify the present address of subjects who have lived in the Beaumont-Hague county, France, between 1978 and 1998, when they were less than 25 years old. METHODS A cohort of 4,118 persons was defined by consulting school and civil status registers from three villages. We drew at random 824 subjects and between October 2000 and August 2001, we asked the RNIAM to locate them. For each subject, the usual identification parameters (first name, last name, birth date and eventually birth place) were provided. In case of a doubt concerning these parameters, a second request was undertaken with a slight modification. RESULTS Altogether, 94.5% of the included people were identified by the RNIAM. Identification was better for people born in France than for those born abroad (97% versus 52%) and 84.5% of people were linked to a health insurance regimen. The RNIAM was able to identify a correct address for 68.7% of the subjects. CONCLUSION The RNIAM seems promising for further epidemiological investigations. Nonetheless, it still remains insufficient by itself to identify addresses. Other means (tax records) should be evaluated and associated with the register data.
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Affiliation(s)
- V Briand
- Unité INSERM-INED U569, Faculté de Médecine Paris-Sud, 94276 Le Kremlin-Bicêtre
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23
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Stubenrauch CJ, Briand V, Rossow WB. The Role of Clear-Sky Identification in the Study of Cloud Radiative Effects: Combined Analysis from ISCCP and the Scanner of Radiation Budget. ACTA ACUST UNITED AC 2002. [DOI: 10.1175/1520-0450(2002)041<0396:trocsi>2.0.co;2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Briand V, Lortholary O. [Endemic mycotic infections]. Rev Prat 2001; 51:747-51. [PMID: 11387671] [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] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
AIDS epidemics and intercontinental travels in endemic areas have increased the incidence of endemic mycoses (histoplasmosis, coccidioidomycosis, blastomycosis, penicilliosis). Environmental dimorphic fungi, through an aerial contamination cause them. Frequent in the HIV patients living in endemic areas, they represent an AIDS definition criterion. Most of primary infections are asymptomatic, they may also present as influenza or pneumonia, that will spontaneously recover. A secondary dissemination may especially occur among immunocompromised hosts involving most often the skin, central nervous system and bones. Lastly, a chronic pulmonary presentation may also occur. Direct examination and histology, cultures and serologies establish diagnosis. In all cases of disseminated or chronic infections, a long-term treatment is necessary, using amphotericin B and azoles. Life-time secondary prophylaxis is recommended in AIDS patients.
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Affiliation(s)
- V Briand
- Fédération de médecine interne maladies infectieuses et tropicales. Hôpital Avicenne Bobigny. olivier
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25
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Lorrain J, Briand V, Favennec E, Duval N, Grosset A, Janiak P, Hoornaert C, Cremer G, Latham C, O'Connor SE. Pharmacological profile of SL 59.1227, a novel inhibitor of the sodium/hydrogen exchanger. Br J Pharmacol 2000; 131:1188-94. [PMID: 11082127 PMCID: PMC1572429 DOI: 10.1038/sj.bjp.0703671] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
1. The NHE1 isoform of the Na(+)/H(+) exchanger plays an important role in the regulation of intracellular pH and in cardiac cell injury caused by ischaemia and reperfusion. SL 59.1227 is a novel imidazolypiperidine Na(+)/H(+) antiport inhibitor which is structurally unrelated to previously described acylguanidine inhibitors such as cariporide. 2. Recovery of pH(i) following an intracellular acid load was measured in CCL39-derived PS120 variant cells, selectively expressing either NHE1 or NHE2 isoforms of the Na(+)/H(+) exchanger. pH(i) recovery was potently and selectively slowed by SL 59.1227 in NHE1-expressing cells (IC(50) 3.3+/-1.3 nM) versus NHE2-expressing cells (2.3+/-1.0 microM). The respective IC(50) values for cariporide were 103+/-28 nM (NHE1) and 73+/-46 microM (NHE2). 3. In anaesthetized rats following left coronary artery occlusion (7 min) and reperfusion (10 min) SL 59.1227 (10 - 100 microg kg(-1) min(-1) i.v.) inhibited ischaemia-mediated ventricular tachycardia (71 - 100%) and reperfusion-induced ventricular fibrillation (75 - 87%) and prevented mortality. Bolus i.v. administration of SL 59.1227 (1 mg kg(-1)) produced anti-arrhythmic effects when administered either before or during ischaemia. 4. Cardiac infarct size was determined in anaesthetized rabbits following left coronary artery occlusion (30 min) and reperfusion (120 min). Infarct size measured as a percentage of the area at risk was 36.2+/-3.4% (control group) versus 15.3+/-3.9% (SL 59.1227 0.6 mg kg(-1) i.v.). 5. SL 59.1227 is the first example of a potent and NHE1-selective non-acylguanidine Na(+)/H(+) exchanger inhibitor. It possesses marked cardioprotective properties.
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Affiliation(s)
- J Lorrain
- Cardiovascular/Thrombosis Research Department, Sanofi-Synthélabo, 1 Avenue Pierre Brossolette, 91385 Chilly-Mazarin Cedex, France.
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Briand V, Riva L, Galzin AM. Characterization of the angiotensin II AT1 receptor subtype involved in DNA synthesis in cultured vascular smooth muscle cells. Br J Pharmacol 1994; 112:1195-201. [PMID: 7952881 PMCID: PMC1910232 DOI: 10.1111/j.1476-5381.1994.tb13210.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
1. This study was undertaken in cultured vascular smooth muscle cells to characterize the angiotensin II (AII) AT1 receptor subtype involved in DNA synthesis because (i) the AII receptor involved in vascular proliferation has previously been characterized in vitro in rat aortic cells and identified as an AT1 subtype and (ii) molecular cloning and biochemical studies have provided evidence for the existence of different AT1 receptor subtypes. 2. In cultured rat aortic vascular smooth muscle (VSMC), exposure to AII (0.1 to 100 nM) resulted in a concentration-dependent increase in [3H]-thymidine incorporation with an EC50 of 1.41 +/- 0.51 nM. Maximal stimulation was observed in the presence of 100 nM AII and corresponded to 271 +/- 40% of basal [3H]-thymidine incorporation. 3. To characterize the AII AT1 receptor subtype involved in this effect, cells were exposed to AII (3 nM) in the absence or presence of increasing concentrations of various AII receptor antagonists. The stimulatory effect of AII (3 nM) on [3H]-thymidine incorporation in VSMC was antagonized by the non-selective AT1/AT2 receptor antagonist, [Sar1, Ile8]-AII (IC50 = 5.6 nM), by the AT1A/AT1B receptor antagonist, losartan (IC50 = 10.5 nM) and the AT1 receptor antagonist, L-158809 (IC50 = 0.20 nM). The selective AT2 receptor ligand, CGP 42112A, antagonized AII-induced [3H]-thymidine incorporation with an IC50 of 6.3 +/- 1.3 microM while the AT2/AT1B receptor antagonist, PD 123319, was found to be almost inactive (IC50 > 10 microM). 4. Under the same experimental conditions, angiotensin III (AIII) was found to be at least 50 times less potent than All with an apparent EC50 of 81.6 +/- 7.7 nM. At the highest concentration tested (10 microM),the effect of AIII corresponded to 327 +/- 61% of basal [3H]-thymidine incorporation.5. These results confirm that All can stimulate DNA synthesis in VSMC through an AT, receptor.Furthermore, the pharmacological characterization of this AT1 receptor is compatible with the ATlA receptor subtype recently described on cultured mesangial cells since (i) the ATIA/ATIB receptor antagonist losartan is active at nanomolar concentrations, (ii) micromolar concentrations of the AT2/AT1B receptor antagonist PD 123319 are ineffective at antagonizing the AII-induced [3H]-thymidine incorporation and (iii) All is at least 50 times more potent than AIII in stimulating DNA synthesis.
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Affiliation(s)
- V Briand
- Synthélabo Recherche (L.E.R.S.), Biology Department, Bagneux, France
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Laurent S, Brisac AM, Champeroux P, Lacolley P, Huguet F, Legrand M, Lucet B, Tsoucaris D, Briand V, Schmitt H. Central cardiovascular effects of dihydropyridines in spontaneously hypertensive rats. Fundam Clin Pharmacol 1989; 3 Suppl:47s-56s. [PMID: 2693290 DOI: 10.1111/j.1472-8206.1989.tb00474.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Intracerebroventricular (i.c.v.) injections of dihydropyridine derivatives calcium channel agonist (BAY K8644) and antagonist (nifedipine, nicardipine, PN 200-110) induced opposite long-lasting changes in blood pressure (BP) in pentobarbital anesthetized spontaneously hypertensive rats (SMR). I.c.v. nifedipine (NIF), nicardipine (NIC), and PN 200-110 decreased mean blood pressure dose-dependently and stereoselectively, (+) NIC and (+) PN being 8 and 3 times more potent than their (-) isomers, respectively. The decrease in BP was due to a withdrawal of the sympathetic tone, since NIF- and NIC-induced falls in BP were suppressed after either hexamethonium (HXM), 6 OHDA or bilateral adrenalectomy. I.c.v. BAY K8644 increased BP dose-dependently. The i.c.v. BAY K8644-induced hypertensive effect was inhibited: a), by NIF and (+) PN but not by (-) PN, therefore probably occurring at central DHP sites; b), by HXM and reserpine, thus probably mediated by an increase in sympathetic tone; c) by i.c.v. methylatropine (MA) while i.v. MA and i.c.v. HXM had no inhibitory effect, thus probably involving central muscarinic sites. In SHR, NIC did not after the K(+)-evoked ACh release but suppressed the BAY K8644-induced increase in ACh release. In anesthetized normotensive control rats (WKY), neither i.c.v. NIF, NIC or BAY increased BP and HR while, in conscious SHR it decreased BP without any change in HR. These data increased BP and HR while, in conscious SHR it decreased BP without any change in HR. These data suggest that central DHP sites may be involved in the cholinergic transmission and may participate in genetic hypertension via sympathetic tone.
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Affiliation(s)
- S Laurent
- Laboratoire de Neuropharmacologie Cardio-Vasculaire et INSERM U228, Paris, France
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Abstract
The negative inotropic potencies (IC50) of the calcium channel blockers nicardipine (12 +/- 2 nM) and nifedipine (9 +/- 2 nM) measured in cultured chick embryo ventricular cells were not significantly different. Exposure of the cells to isoproterenol potentiated the negative inotropic effect of low concentrations of nicardipine (10(-9)-10(-8) M) and decreased the effect of higher concentrations (10(-7) M). In contrast, isoproterenol shifted the entire dose-response curve for nifedipine to the right. These results provide evidence that activation of beta-adrenoceptors modulates the negative inotropic effect of nifedipine and nicardipine differently.
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Affiliation(s)
- V Briand
- Laboratoire de Pharmacologie Cardiovasculaire et Unité INSERM U228, Paris, France
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Abstract
To determine whether atrial natriuretic peptide (ANP) has an inotropic effect, the contractility of spontaneously beating cultured chick embryo ventricular cells was studied in response to rat-ANP (1-23) superfused at concentrations ranging from 10(-10) M to 2.5 x 10(-7) M. r-ANP reversibly decreased contractility with a threshold concentration of 10(-8) M; at the highest concentration, r-ANP decreased contractility to a moderate extent (-30 +/- 4%) r-ANP increased dose-dependently intracellular cGMP levels. Stimulation of contractility with [Ca2+], the calcium-channel agonist BAY K 8644 or isoproterenol attenuated to various degrees the inhibitory effect of r-ANP. By contrast, the inhibitory effect of r-ANP on contractility was unchanged or even enhanced after stimulation of contractility by angiotensin II. There was no difference in r-ANP-induced increase in cGMP whether cells were pre-incubated with angiotensin II or not. These results indicate that r-ANP was able to decrease contractility of cultured cardiac myocytes and suggest a preferential antagonism of the inotropic effect of angiotensin II.
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Vaxelaire JF, Laurent S, Briand V, Michel JB, Schmitt H. Atrial natriuretic peptide decreases contractility of cultured heart cell: preliminary report. J Hypertens Suppl 1988; 6:S282-3. [PMID: 2467972 DOI: 10.1097/00004872-198812040-00086] [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: 01/01/2023]
Abstract
We tested the hypothesis that atrial natriuretic peptide (ANP) has a direct negative inotropic effect on the cultured chick embryo ventricular cell, an experimental system devoid of endogenous neurotransmitters. At 10(-8) and 2.5 x 10(-7) mol/l ANP [rat ANP-(1-23)] significantly and reversibly decreased contractility in spontaneously beating cells. The positive inotropic effect of angiotensin II (2.5 X 10(-7) mol/l) on spontaneously beating cells was fully antagonized by ANP (2.5 X 10(-7) mol/l) and the amplitude of contraction decreased below control levels. In contrast (1) the increase in contractility in response to extracellular calcium was significantly less altered by ANP and (2) the time-course of the positive inotropic effect of the calcium-channel agonist Bay-K-8644 (5 x 10(9) mol/l) or of the beta-adrenergic agonist isoproterenol (10(-6) mol/l) was unchanged by ANP. These results indicate that ANP-(1-23) has a direct negative inotropic effect on cultured chick heart cells and may affect intracellular messengers involved in the cardiac effects of angiotensin II.
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Affiliation(s)
- J F Vaxelaire
- Laboratory of Cardiovascular Pharmacology, University Broussais-Hotel Dieu, Paris, France
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Briand V, Laurent S, Vaxelaire JF, Micheli L, Auclair MC, Schmitt H. Relative negative inotropic potencies of nine calcium channel blockers in cultured heart cells. Arch Int Pharmacodyn Ther 1988; 295:125-37. [PMID: 3245728] [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] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The direct inhibitory effects on contractility and beating rate of the calcium channel blockers diltiazem, verapamil and dihydropyridine derivatives nicardipine, nifedipine, nitrendipine, PY 108-068, (+/- ) PN 200-110 and its 2 stereoisomers, were compared in cultured chick embryo ventricular cells. In spontaneously beating cells, the negative inotropic and chronotropic potencies of nicardipine, nifedipine, nitrendipine and PY 108-068 were not significantly different. The inhibitory effects of verapamil, nifedipine and nicardipine were studied in cells electrically driven at a frequency close to their spontaneous beating rate: verapamil, nifedipine and nicardipine had similar negative chronotropic potencies; when the rate of stimulation was increased 1.5 and 2-fold, a frequency-dependent inhibitory effect on contraction was shown for verapamil, but not for nifedipine and nicardipine. Therefore, in our model, where the effects of beating rate on the amplitude of contraction were taken into account, no significant difference in the direct negative inotropic potenties of nifedipine and nicardipine was shown.
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Affiliation(s)
- V Briand
- INSERM U 228, Faculté de Médecine Broussais-Hôtel Dieu, Paris, France
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Vaxelaire JF, Laurent S, Briand V, Michel JB, Schmitt H. [Atrial natriuretic factor diminishes the contractility of the cardiac cell in culture]. Arch Mal Coeur Vaiss 1988; 81 Spec No:271-3. [PMID: 2461183] [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] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The hypotensive effect of ANP has been associated with lowered cardiac output. Although only minor or no negative inotropic effect was found in vitro, a direct myocardial depressant effect of ANP remains a possible mechanism in vitro, in addition to the reduction in cardiac preload. Therefore we tested the hypothesis of a direct negative inotropic effect of ANP on the cultured chick embryo ventricular cell, an experimental system which contains no neural elements and no endogenous neurotransmitters. ANP (rat-ANP 1-23) 10(-8) M significantly and reversibly decreased contractility in spontaneously beating cells. A further decrease (-30 +/- 4 p. 100 of initial amplitude of contraction) was observed at 2.5 x 10(-7) M: -17 +/- 4 p. 100 of initial amplitude). The positive inotropic effect of angiotensin II (2.5 x 10(-7) M) on spontaneously beating cells was fully antagonized by ANP (2.5 x 10(-7) M) and amplitude of contraction decreased under control levels. By contrast (1) the increase in contractility in response to extra-cellular calcium (increased from 1.5 to 2.1 mM) was significantly less altered by ANP and (2) the time-course of the positive inotropic effect of the calcium-channel agonist BAY K 8644 (5 x 10(-9) M) or the beta-adrenergic agonist isoproterenol (10(-6) M) was unchanged by ANP. These results indicate a direct negative inotropic effect of ANP (1-23) on cultured chick heart cells and suggest an effect on intracellular messengers involved in the cardiac effects of angiotensin II.(ABSTRACT TRUNCATED AT 250 WORDS)
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Briand V, Laurent S, Tsoucaris-Kupfer D, Legrand M, Brisac AM, Schmitt H. Central and peripheral cardiovascular effects of the enantiomers of the calcium antagonist PN 200-110. Eur J Pharmacol 1988; 150:43-50. [PMID: 2969823 DOI: 10.1016/0014-2999(88)90748-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The negative inotropic effects and the central and peripheral hypotensive effects of (+) and (-) PN 200-110 were investigated in cultured chick heart cells and in spontaneously hypertensive rats, respectively. There was a large difference in negative inotropic potency between the two enantiomers in cultured chick embryo ventricular cells: the (+) enantiomer was 140 fold more potent (IC50 = 1.1 +/- 0.2 nM) than the (-) enantiomer (IC50 = 160 +/- 20 nM). (+) PN 200-110 was 10 fold more potent than (-) PN 200-110 in lowering blood pressure after intravenous injection and only three fold more potent after intra-cerebroventricular injection (i.c.v.) into pentobarbital-anaesthetized spontaneously hypertensive rats. I.c.v. administered (+) PN 200-110 (1 microgram/kg) partially antagonized the hypertensive response to i.c.v. administered BAY K 8644 (30 micrograms/kg), a calcium channel agonist, while the same dose of the (-) enantiomer did not change the i.c.v. BAY-induced increase in blood pressure. These results suggest that the dihydropyridine calcium channel antagonist, PN 200-110, may act centrally and stereoselectively at the level of the dihydropyridine receptor sites involved in the control of blood pressure in spontaneously hypertensive rats.
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Affiliation(s)
- V Briand
- Laboratoire de Pharmacologie Cardiovasculaire, INSERM U 228, Paris, France
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