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Malaria in pregnancy

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https://www.readbyqxmd.com/read/28219435/changing-the-policy-for-intermittent-preventive-treatment-with-sulfadoxine-pyrimethamine-during-pregnancy-in-malawi
#1
Chikondi A Mwendera, Christiaan de Jager, Herbert Longwe, Kamija Phiri, Charles Hongoro, Clifford M Mutero
BACKGROUND: The growing resistance of Plasmodium falciparum to sulfadoxine-pyrimethamine (SP) treatment for uncomplicated malaria led to a recommendation by the World Health Organization for the use of artemisinin-based combination therapy. Inevitably, concerns were also raised surrounding the use of SP for intermittent prevention treatment of malaria during pregnancy (IPTp) amidst the lack of alternative drugs. Malawi was the first country to adopt intermittent prevention treatment with SP in 1993, and updated in 2013...
February 20, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28213434/malaria-during-pregnancy
#2
Michal Fried, Patrick E Duffy
One hundred and twenty-five million women in malaria-endemic areas become pregnant each year (see Dellicour et al. PLoS Med7: e1000221 [2010]) and require protection from infection to avoid disease and death for themselves and their offspring. Chloroquine prophylaxis was once a safe approach to prevention but has been abandoned because of drug-resistant parasites, and intermittent presumptive treatment with sulfadoxine-pyrimethamine, which is currently used to protect pregnant women throughout Africa, is rapidly losing its benefits for the same reason...
February 17, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28187497/antiretroviral-therapy-with-efavirenz-accentuates-pregnancy-associated-reduction-of-dihydroartemisinin-piperaquine-exposure-during-malaria-chemoprevention
#3
Richard Kajubi, Liusheng Huang, Prasanna Jagannathan, Nona Chamankhah, Moses Were, Theodore Ruel, Catherine A Koss, Abel Kakuru, Norah Mwebaza, Moses Kamya, Diane Havlir, Grant Dorsey, Philip J Rosenthal, Francesca T Aweeka
Dihydroartemisinin (DHA)-piperaquine is promising for malaria chemoprevention in pregnancy. We assessed impacts of pregnancy and efavirenz-based antiretroviral therapy on exposure to DHA and piperaquine in pregnant Ugandan women. Intensive sampling was performed at 28 weeks gestation in 31 HIV-uninfected pregnant women, in 27 HIV-infected pregnant women receiving efavirenz, and in 30 HIV-uninfected non-pregnant women. DHA peak concentration and area under the concentration time curve (AUC0-8hr ) were 50% and 47% lower, respectively, and piperaquine AUC0-21d was 40% lower in pregnant women compared to non-pregnant women...
February 10, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28178298/the-impact-of-prenatal-exposure-to-parasitic-infections-and-to-anthelminthic-treatment-on-antibody-responses-to-routine-immunisations-given-in-infancy-secondary-analysis-of-a-randomised-controlled-trial
#4
Stephen Nash, Alexander J Mentzer, Swaib A Lule, Dennison Kizito, Gaby Smits, Fiona R M van der Klis, Alison M Elliott
BACKGROUND: Chronic parasitic infections are associated with active immunomodulation which may include by-stander effects on unrelated antigens. It has been suggested that pre-natal exposure to parasitic infections in the mother impacts immunological development in the fetus and hence the offspring's response to vaccines, and that control of parasitic infection among pregnant women will therefore be beneficial. METHODOLOGY/PRINCIPAL FINDINGS: We used new data from the Entebbe Mother and Baby Study, a trial of anthelminthic treatment during pregnancy conducted in Uganda, to further investigate this hypothesis...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28168042/coinfection-with-schistosoma-haematobium-and-plasmodium-falciparum-and-anaemia-severity-among-pregnant-women-in-munyenge-mount-cameroon-area-a-cross-sectional-study
#5
Judith K Anchang-Kimbi, Dillys Mansoh Elad, Gemain Taiwe Sotoing, Eric Akum Achidi
Background. Malaria and urogenital schistosomiasis are coendemic in Mount Cameroon Area. This study investigated the prevalence of S. haematobium, P. falciparum, and coinfections and their effect on anaemia in pregnancy. Methods. Pregnant women reporting for antenatal care (ANC) clinic visit in Munyenge were enrolled. S. haematobium and P. falciparum infections were determined by urine filtration and microscopy, respectively. Haemoglobin (Hb) levels were measured using haemoglobinometer. Of 250 women, 46.8%, 39...
2017: Journal of Parasitology Research
https://www.readbyqxmd.com/read/28166246/soluble-human-leukocyte-antigen-g-during-pregnancy-and-infancy-in-benin-mother-child-resemblance-and-association-with-the-risk-of-malaria-infection-and-low-birth-weight
#6
Tania C d'Almeida, Ibrahim Sadissou, Jacqueline Milet, Gilles Cottrell, Amandine Mondière, Euripide Avokpaho, Laure Gineau, Audrey Sabbagh, Achille Massougbodji, Kabirou Moutairou, Eduardo A Donadi, Benoit Favier, Edgardo Carosella, Philippe Moreau, Nathalie Rouas-Freiss, David Courtin, André Garcia
Human leukocyte antigen (HLA) G is a tolerogenic molecule involved in the maternal-fetal immune tolerance phenomenon. Its expression during some infectious diseases leading to immune evasion has been established. A first study conducted in Benin has shown that the production of soluble HLA-G (sHLA-G) during the first months of life is strongly correlated with the maternal level at delivery and associated with low birth weight and malaria. However sHLA-G measurements during pregnancy were not available for mothers and furthermore, to date the evolution of sHLA-G in pregnancy is not documented in African populations...
2017: PloS One
https://www.readbyqxmd.com/read/28148260/individuals-living-in-a-malaria-endemic-area-of-cameroon-do-not-have-an-acquired-antibody-response-to-plasmodium-falciparum-histidine-rich-protein-2
#7
Diane Wallace Taylor, Naveen Bobbili, Vedbar S Khadka, Isabella A Quakyi, Rose G F Leke
BACKGROUND: Diagnosis of Plasmodium falciparum is often based on detection of histidine-rich protein 2 (HRP2) in blood. Most HRP2-based assays have high sensitivity and specificity; however, authors have suggested that antibodies (Ab) to HRP2 could reduce assay sensitivity. This study sought to characterize the antibody response to HRP2 with respect to prevalence, class, subclass, affinity, and age distribution in Cameroonian children and adults residing in an area with high P. falciparum transmission...
February 1, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28115667/vitamin-a-and-zinc-supplementation-among-pregnant-women-to-prevent-placental-malaria-a-randomized-double-blind-placebo-controlled-trial-in-tanzania
#8
Anne Marie Darling, Ferdinand M Mugusi, Analee J Etheredge, Nilupa S Gunaratna, Ajibola Ibraheem Abioye, Said Aboud, Christopher Duggan, Robert Mongi, Donna Spiegelman, Drucilla Roberts, Davidson H Hamer, Kevin C Kain, Wafaie W Fawzi
Vitamin A and zinc are important for immune function and may improve host defense against malaria and reduce the risk of adverse pregnancy outcomes. Our objective was to determine whether daily oral supplementation with either or both nutrients starting in the first trimester reduces the risk of placental malaria and adverse pregnancy outcomes. We undertook a randomized, double-blind placebo-controlled trial with a factorial design among 2,500 human immunodeficiency virus-negative primigravid or secundigravid pregnant women in their first trimester of pregnancy in Dar es Salaam, Tanzania...
January 23, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28114990/recent-uptake-of-intermittent-preventive-treatment-during-pregnancy-with-sulfadoxine-pyrimethamine-is-associated-with-increased-prevalence-of-pfdhfr-mutations-in-bobo-dioulasso-burkina-faso
#9
Mamoudou Cisse, Gordon A Awandare, Alamissa Soulama, Halidou Tinto, Marie-Pierre Hayette, Robert T Guiguemdé
BACKGROUND: The impact of sulfadoxine-pyrimethamine (SP) used as intermittent preventive treatment during pregnancy (IPTp-SP) on mutant parasite selection has been poorly documented in Burkina Faso. This study sought first to explore the relationship between IPTp-SP and the presence of mutant parasites. Second, to assess the relationship between the mutant parasites and adverse pregnancy outcomes. METHODS: From September to December 2010, dried blood spots (DBS) were collected during antenatal care visits and at delivery from 109 pregnant women with microscopically confirmed falciparum malaria infection...
January 23, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28109243/neonatal-hyperbilirubinemia-in-a-marginalized-population-on-the-thai-myanmar-border-a-study-protocol
#10
Laurence Thielemans, Margreet Trip-Hoving, Germana Bancone, Claudia Turner, Julie A Simpson, Borimas Hanboonkunupakarn, Michaël Boele van Hensbroek, Patrick van Rheenen, Moo Kho Paw, François Nosten, Rose McGready, Verena I Carrara
BACKGROUND: This study aims to identify risk factors and the neurodevelopmental impact of neonatal hyperbilirubinemia in a limited-resource setting among a refugee and migrant population residing along the Thai-Myanmar border, an area with a high prevalence of glucose-6-phosphate dehydrogenase-deficiency. METHODS: This is an analytic, observational, prospective birth cohort study including all infants of estimated gestational age equal to or greater than 28 weeks from mothers who followed antenatal care in the Shoklo Malaria Research Unit clinics...
January 21, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28103883/performance-of-loop-mediated-isothermal-amplification-lamp-for-the-diagnosis-of-malaria-among-malaria-suspected-pregnant-women-in-northwest-ethiopia
#11
Banchamlak Tegegne, Sisay Getie, Wossenseged Lemma, Abu Naser Mohon, Dylan R Pillai
BACKGROUND: Malaria is a major public health problem and an important cause of maternal and infant morbidity in sub-Saharan Africa, including Ethiopia. Early and accurate diagnosis of malaria with effective treatment is the best strategy for prevention and control of complications during pregnancy and infant morbidity and mortality. However, laboratory diagnosis has relied on the identification of malaria parasites and parasite antigens in peripheral blood using Giemsa-stained microscopy or rapid diagnostic tests (RDTs) which lack analytical and clinical sensitivity...
January 19, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28086874/new-developments-in-anti-malarial-target-candidate-and-product-profiles
#12
REVIEW
Jeremy N Burrows, Stephan Duparc, Winston E Gutteridge, Rob Hooft van Huijsduijnen, Wiweka Kaszubska, Fiona Macintyre, Sébastien Mazzuri, Jörg J Möhrle, Timothy N C Wells
A decade of discovery and development of new anti-malarial medicines has led to a renewed focus on malaria elimination and eradication. Changes in the way new anti-malarial drugs are discovered and developed have led to a dramatic increase in the number and diversity of new molecules presently in pre-clinical and early clinical development. The twin challenges faced can be summarized by multi-drug resistant malaria from the Greater Mekong Sub-region, and the need to provide simplified medicines. This review lists changes in anti-malarial target candidate and target product profiles over the last 4 years...
January 13, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28057071/parasitic-infections-and-maternal-anaemia-among-expectant-mothers-in-the-dangme-east-district-of-ghana
#13
Samuel Crowther Kofi Tay, Emmanuel Agbeko Nani, Williams Walana
BACKGROUND: Parasitic infections are of public health concern globally, particular among at risk groups such as pregnant women in developing countries. The presence of these parasites during pregnancy potentiate adverse effects to both the mother and the unborn baby. This study sought to establish the prevalence of some parasitic agents among antenatal attendees in the Dangme East District of Ghana. A cross-sectional prospective study was conduct between April and July, 2012. Venous blood specimens were collected from each participant for haemoglobin estimation and malaria microscopy...
January 3, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28049536/usefulness-of-a-biomarker-to-identify-placental-dysfunction-in-the-context-of-malaria
#14
REVIEW
Alexandra Gueneuc, Philippe Deloron, Gwladys I Bertin
In most tropical areas, pregnant women are at increased risk of malaria, as a consequence of the massive sequestration of parasitized red blood cells in the placenta. The placenta plays a key role in embryonic and fetal development as well as in maternal-fetal exchanges, and pregnancy-associated malaria may alter selected placenta functions that lead to stillbirth and low birth weight. Although there are several tools (blood smear examination, RDT, PCR) to diagnose malaria infection during pregnancy, there is currently no test to assess placenta dysfunction in the framework of pregnancy-associated malaria...
January 3, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28049471/reported-bed-net-ownership-and-use-in-social-contacts-is-associated-with-uptake-of-bed-nets-for-malaria-prevention-in-pregnant-women-in-ghana
#15
Kacey C Ernst, Steven Erly, Charity Adusei, Melanie L Bell, David Komla Kessie, Alberta Biritwum-Nyarko, John Ehiri
BACKGROUND: Despite progress made in the last decades, malaria persists as a pressing health issue in sub-Saharan Africa. Pregnant women are particularly vulnerable to infection and serious health outcomes for themselves and their unborn child. Risk can be mitigated through appropriate use of control measures such as insecticide-treated bed nets. Although social networks can influence uptake of preventive strategies, the role of social influence on bed net ownership has not been explored...
January 4, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28044045/recrudescence-of-plasmodium-falciparum-in-a-primigravida-after-nearly-3-years-of-latency
#16
Ahmed Al Hammadi, Michael Mitchell, George M Abraham, Jennifer P Wang
We present a case of a primigravid woman who presented with Plasmodium falciparum nearly 3 years after she last visited a malaria-endemic region. We review the literature to identify case reports of recrudescent P falciparum malaria during pregnancy, including those with prolonged latency. Reports of recrudescence of P falciparum during pregnancy are limited. Plasmodium falciparum infection can persist for years. Recrudescence can occur with waning of immunity following departure from endemic areas. Pregnancy, particularly the primigravid state, is a risk factor for severe infection...
January 2, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28034892/how-i-treat-anemia-in-pregnancy-iron-cobalamin-and-folate
#17
Maureen M Achebe, Anat Gafter-Gvili
Anemia of pregnancy is considered a global health problem, affecting almost 50% of pregnant women. Anemia is an important risk factor for both fetal and maternal morbidity. The purpose of this article is to discuss diagnosis and management of the most frequent causes of anemia in pregnancy: iron, cobalamin and folate deficiencies. This paper considers three clinical cases. Iron deficiency is the most common cause. The laboratory tests that define iron deficiency, the recognition of developmental delays and cognitive abnormalities in iron-deficient neonates and the literature addressing the efficacy and safety of intravenous iron in pregnancy are reviewed...
December 29, 2016: Blood
https://www.readbyqxmd.com/read/28032463/developmental-toxicity-studies-of-lumefantrine-and-artemether-in-rats-and-rabbits
#18
Robert L Clark, Maureen Youreneff, Anthony M DeLise
The combination of artemether plus lumefantrine is a type of artemisinin-based combination therapy (ACT) recommended by the World Health Organization for uncomplicated falciparum malaria except in the first trimester of pregnancy. The first trimester restriction was based on the marked embryotoxicity in animals (including embryo death and cardiac and skeletal malformations) of artemisinins such as artesunate, dihydroartemisinin, and artemether. Before recommending ACTs for use in the first trimester, the World Health Organization has requested that all information relevant to the assessment of risk of ACTs to the embryo be made available to the public...
December 2016: Birth Defects Research. Part B, Developmental and Reproductive Toxicology
https://www.readbyqxmd.com/read/28032428/antimalarial-treatment-patterns-among-pregnant-women-attending-antenatal-care-clinics-in-south-east-nigeria-and-the-future-implications
#19
Charles Ezenduka, Chizoba Nworgu, Brian Barr Godman, Amos Massele, Charles Esimone
BACKGROUND: Prompt and effective treatment of malaria in pregnancy in accordance with recommended guidelines is essential to help prevent adverse events among pregnant mothers and the foetus. AIM: The aim of this study was to assess current prescribing of antimalarial medicines in pregnancy against policy guidelines in south east Nigeria to provide future guidance. METHODS: A review of prescription records of pregnant women treated for malaria over a 6-month period between August 2013 and January 2014 was carried out to assess the prescribing patterns for both the prevention and treatment of malaria in each trimester and analyzed for conformity to recommended guidelines...
December 2016: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/28027635/placental-weight-ratio-affects-placental-mrna-expression-of-insulin-like-growth-factor-i-and-long-isoform-of-the-leptin-receptor-in-plasmodium-falciparuminfected-pregnant-women
#20
Sukma Oktavianthi, Leily Trianty, Rintis Noviyanti, Hidayat Trimarsanto, Herawati Sudoyo, Safarina G Malik
BACKGROUND AND OBJECTIVES: Plasmodium falciparum infection during pregnancy is characterised by placental inefficiency caused by infected erythrocyte sequestration. Reduced placental efficiency leads to placental intrauterine adaptation for sustaining fetal growth, which is reflected by changes in the expression of placental genes involved in intrauterine growth regulation. Therefore, we aimed to determine whether the placental weight ratio, an indicator of placental efficiency, affects the placental expression of the components of the insulin-like growth factor axis and leptin signalling pathway in P...
December 2016: Asia Pacific Journal of Clinical Nutrition
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