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Malaria in pregnancy

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https://www.readbyqxmd.com/read/28533699/comparative-analysis-of-the-safety-and-tolerability-of-fixed-dose-artesunate-amodiaquine-versus-artemether-lumefantrine-combinations-for-uncomplicated-falciparum-malaria-in-pregnancy-a-randomized-open-label-study
#1
Osede I Iribhogbe, Igue Emmanuel, Marylove Odianosen
A comparative clinical study was conducted to evaluate the safety and tolerability of two commonly used fixed dose artemisinin-based combinations for the treatment of uncomplicated Plasmodium falciparum malaria in the second and third trimester of pregnancy. To achieve this, a total of 155 participants were recruited for the study. Eighty of these were drawn from pregnant women who came for routine antenatal care while 40 nonpregnant participants were recruited from apparently healthy females in the community...
2017: Clinical Pharmacology: Advances and Applications
https://www.readbyqxmd.com/read/28527688/clinical-development-of-a-var2csa-based-placental-malaria-vaccine-pamvac-quantifying-vaccine-antigen-specific-memory-b-t-cell-activity-in-beninese-primigravidae
#2
Komi Gbédandé, Nadine Fievet, Firmine Viwami, Sem Ezinmegnon, Saadou Issifou, Jean-Philippe Chippaux, Yannelle Dossou, Kabirou Moutairou, Achille Massougbodji, Nicaise Ndam, Willem Adriaan de Jongh, T Max M Søgaard, Ali Salanti, Morten A Nielsen, Meral Esen, Benjamin Mordmüller, Philippe Deloron, Adrian J F Luty
BACKGROUND: The antigen VAR2CSA plays a pivotal role in the pathophysiology of pregnancy-associated malaria (PAM) caused by Plasmodium falciparum. A VAR2CSA-based vaccine candidate, PAMVAC, is under development by an EU-funded multi-country consortium (PlacMalVac project). As part of PAMVAC's clinical development, we quantified naturally acquired vaccine antigen-specific memory B and T cell responses in Beninese primigravidae recruited at the beginning of pregnancy and followed up to delivery and beyond...
May 17, 2017: Vaccine
https://www.readbyqxmd.com/read/28511713/artemisinin-based-combination-therapy-in-pregnant-women-in-zambia-efficacy-safety-and-risk-of-recurrent-malaria
#3
Michael Nambozi, Jean-Bertin Bukasa Kabuya, Sebastian Hachizovu, David Mwakazanga, Joyce Mulenga, Webster Kasongo, Jozefien Buyze, Modest Mulenga, Jean-Pierre Van Geertruyden, Umberto D'Alessandro
BACKGROUND: In Zambia, malaria is one of the leading causes of morbidity and mortality, especially among under five children and pregnant women. For the latter, the World Health Organization recommends the use of artemisinin-based combination therapy (ACT) in the second and third trimester of pregnancy. In a context of limited information on ACT, the safety and efficacy of three combinations, namely artemether-lumefantrine (AL), mefloquine-artesunate (MQAS) and dihydroartemisinin-piperaquine (DHAPQ) were assessed in pregnant women with malaria...
May 16, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28507380/malaria-and-diabetes
#4
Sanjay Kalra, Deepak Khandelwal, Rajiv Singla, Sameer Aggarwal, Deep Dutta
Both malaria and diabetes are more common in the developing world, and are major public health challenges. A direct relationship between these 2 conditions has not been evaluated. This review article assessed the literature guaging the relationship between these two conditions, and suggests a pragmatic approach to management. References for this review were identified through searches of PubMed, Medline, and Embase for articles published to October 2016 using the terms "diabetes" [MeSH Terms] AND "malaria" [All Fields]...
May 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28486979/mediation-of-the-effect-of-malaria-in-pregnancy-on-stillbirth-and-neonatal-death-in-an-area-of-low-transmission-observational-data-analysis
#5
Kerryn A Moore, Freya J I Fowkes, Jacher Wiladphaingern, Nan San Wai, Moo Kho Paw, Mupawjay Pimanpanarak, Verena I Carrara, Jathee Raksuansak, Julie A Simpson, Nicholas J White, François Nosten, Rose McGready
BACKGROUND: Malaria in pregnancy is preventable and contributes significantly to the estimated 5.5 million stillbirths and neonatal deaths that occur annually. The contribution of malaria in pregnancy in areas of low transmission has not been quantified, and the roles of maternal anaemia, small-for-gestational-age status, and preterm birth in mediating the effect of malaria in pregnancy on stillbirth and neonatal death are poorly elucidated. METHODS: We analysed observational data routinely collected at antenatal clinics on the Thai-Myanmar border (1986-2015)...
May 10, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28481333/regulation-of-pfemp1-var2csa-translation-by-a-plasmodium-translation-enhancing-factor
#6
Sherwin Chan, Alejandra Frasch, Chandra Sekhar Mandava, Jun-Hong Ch'ng, Maria Del Pilar Quintana, Mattias Vesterlund, Mehdi Ghorbal, Nicolas Joannin, Oscar Franzén, Jose-Juan Lopez-Rubio, Sonia Barbieri, Antonio Lanzavecchia, Suparna Sanyal, Mats Wahlgren
Pregnancy-associated malaria commonly involves the binding of Plasmodium falciparum-infected erythrocytes to placental chondroitin sulfate A (CSA) through the PfEMP1-VAR2CSA protein. VAR2CSA is translationally repressed by an upstream open reading frame. In this study, we report that the P. falciparum translation enhancing factor (PTEF) relieves upstream open reading frame repression and thereby facilitates VAR2CSA translation. VAR2CSA protein levels in var2csa-transcribing parasites are dependent on the expression level of PTEF, and the alleviation of upstream open reading frame repression requires the proteolytic processing of PTEF by PfCalpain...
May 8, 2017: Nature Microbiology
https://www.readbyqxmd.com/read/28479893/igg-isotypic-antibodies-to-crude-plasmodium-falciparum-blood-stage-antigen-associated-with-placental-malaria-infection-in-parturient-cameroonian-women
#7
Judith K Anchang-Kimbi, Eric Akum Achidi, Blaise Nkegoum, Joseph-Marie N Mendimi, Eva Sverremark-Ekström, Marita Troye-Blomberg
BACKGROUND: Few studies have reported an association between placental malaria (PM) infection and levels of isotypic antibodies against non-pregnancy associated antigens. OBJECTIVE: To determine and evaluate IgG isotypic antibody levels to crude P. falciparum blood stage in women with and without PM infection. METHODS: Levels of IgG (IgG1-IgG4) and IgM to crude P. falciparum blood stage antigen were measured by ELISA in 271 parturient women...
December 2016: African Health Sciences
https://www.readbyqxmd.com/read/28469130/heterozygous-hbac-but-not-hbas-is-associated-with-higher-newborn-birthweight-among-women-with-pregnancy-associated-malaria
#8
Marilou Tétard, Jacqueline Milet, Sébastien Dechavanne, Nadine Fievet, Dominique Dorin-Semblat, Jacques Elion, Rick M Fairhurst, Philippe Deloron, Nicaise Tuikue-Ndam, Benoît Gamain
Pregnancy-associated malaria (PAM) is associated with poor pregnancy outcomes. Hemoglobin S (HbS) and hemoglobin C (HbC) mutations are frequently encountered in malaria-endemic areas of Africa, where they protect children from severe and uncomplicated Plasmodium falciparum malaria. However, scant epidemiological data exist on the impact of these Hb variants on PAM. A prospective cohort of 635 Beninese pregnant women was recruited before 24 weeks of gestational age and followed until the end of pregnancy. HbAA, HbAC, and HbAS genotypes were determined and tested for association with pregnancy outcomes and PAM indicators using linear and logistic multivariate models...
May 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28465859/monitoring-compliance-and-acceptability-of-intermittent-preventive-treatment-of-malaria-using-sulfadoxine-pyrimethamine-after-ten-years-of-implementation-in-tanzania
#9
Mdetele B Ayubu, Winifrida B Kidima
Intermittent preventive treatment using SP (IPTp-SP) is still a superior interventional approach to control malaria during pregnancy. However its rate of use has gone down tremendously in malaria endemic areas. This study forms part of a larger study aimed at monitoring the compliance of IPTp-SP policy in malaria endemic areas of Tanzania. Two cross-sectional studies were conducted in Dar es Salaam and Njombe Regions of Tanzania. Overall, 540 pregnant women and 21 healthcare workers were interviewed using structured questionnaires...
2017: Malaria Research and Treatment
https://www.readbyqxmd.com/read/28463996/first-trimester-artemisinin-derivatives-and-quinine-treatments-and-the-risk-of-adverse-pregnancy-outcomes-in-africa-and-asia-a-meta-analysis-of-observational-studies
#10
Stephanie Dellicour, Esperança Sevene, Rose McGready, Halidou Tinto, Dominic Mosha, Christine Manyando, Stephen Rulisa, Meghna Desai, Peter Ouma, Martina Oneko, Anifa Vala, Maria Rupérez, Eusébio Macete, Clara Menéndez, Seydou Nakanabo-Diallo, Adama Kazienga, Innocent Valéa, Gregory Calip, Orvalho Augusto, Blaise Genton, Eric M Njunju, Kerryn A Moore, Umberto d'Alessandro, Francois Nosten, Feiko Ter Kuile, Andy Stergachis
BACKGROUND: Animal embryotoxicity data, and the scarcity of safety data in human pregnancies, have prevented artemisinin derivatives from being recommended for malaria treatment in the first trimester except in lifesaving circumstances. We conducted a meta-analysis of prospective observational studies comparing the risk of miscarriage, stillbirth, and major congenital anomaly (primary outcomes) among first-trimester pregnancies treated with artemisinin derivatives versus quinine or no antimalarial treatment...
May 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28460016/physicians-compliance-with-the-national-drug-policy-on-malaria-in-a-tertiary-teaching-hospital-india-from-2010-to-2015-a-mixed-method-study
#11
Soundappan Kathirvel, Jaya Prasad Tripathy, Zaw Myo Tun, Binod Kumar Patro, Tarundeep Singh, Ashish Bhalla, Mahesh Devnani, Ewan Wilkinson
Background: National drug policies are formulated to encourage rational use of drugs and to reduce drug resistance. This study assessed physicians' compliance with the National Drug Policy on Malaria at a tertiary care hospital in north India. Methods: This mixed method study extracted data from adult malaria inpatient records of the hospital from 2010-2015, and assessed drug supply at pharmacies. Physicians' practices and perspectives were explored by in-depth interviews...
February 1, 2017: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28454537/increase-in-the-prevalence-of-mutations-associated-with-sulfadoxine-pyrimethamine-resistance-in-plasmodium-falciparum-isolates-collected-from-early-to-late-pregnancy-in-nanoro-burkina-faso
#12
Esmée Ruizendaal, Marc C Tahita, Ronald B Geskus, Inge Versteeg, Susana Scott, Umberto d'Alessandro, Palpouguini Lompo, Karim Derra, Maminata Traore-Coulibaly, Menno D de Jong, Henk D F H Schallig, Halidou Tinto, Petra F Mens
BACKGROUND: Pregnant women are a high-risk group for Plasmodium falciparum infections, which may result in maternal anaemia and low birth weight newborns, among other adverse birth outcomes. Intermittent preventive treatment with sulfadoxine-pyrimethamine during pregnancy (IPTp-SP) is widely implemented to prevent these negative effects of malaria. However, resistance against SP by P. falciparum may decrease efficacy of IPTp-SP. Combinations of point mutations in the dhps (codons A437, K540) and dhfr genes (codons N51, C59, S108) of P...
April 28, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28445440/micronutrient-status-among-pregnant-women-in-zinder-niger-and-risk-factors-associated-with-deficiency
#13
K Ryan Wessells, Césaire T Ouédraogo, Rebecca R Young, M Thierno Faye, Alex Brito, Sonja Y Hess
Anemia and micronutrient (MN) deficiencies in pregnant women are associated with adverse pregnancy outcomes. In Niger, 58.6% of pregnant women are anemic; however, MN statuses are unknown. The study objectives were to estimate the prevalence of MN deficiencies among pregnant women in Zinder, Niger and explore associated risk factors. Pregnant women living in randomly selected rural villages (n = 88) were included. Capillary and venous blood samples (n = 770) were analyzed for hemoglobin (Hb) and plasma ferritin, soluble transferrin receptor (sTfR), zinc (pZn), retinol binding protein (RBP), folate and vitamin B12...
April 26, 2017: Nutrients
https://www.readbyqxmd.com/read/28434376/pre-clinical-and-clinical-development-of-the-first-placental-malaria-vaccine
#14
Caroline Pehrson, Ali Salanti, Thor G Theander, Morten A Nielsen
Malaria during pregnancy is a massive health problem in endemic areas. Placental malaria infections caused by Plasmodium falciparum are responsible for up to one million babies being born with a low birth weight every year. Significant efforts have been invested into preventing the condition. Areas covered: Pub Med was searched using the broad terms 'malaria parasite placenta' to identify studies of interactions between parasite and host, 'prevention of placental malaria' to identify current strategies to prevent placental malaria, and 'placental malaria vaccine' to identify pre-clinical vaccine development...
June 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28404574/parasitic-infections-in-pregnancy-decrease-placental-transfer-of-anti-pneumococcal-antibodies
#15
Noah D McKittrick, David M Vu, Indu Malhotra, Charles H King, Francis Mutuku, A Desiree LaBeaud
Many factors can influence maternal placental antibody transfer to the fetus, which confers important immune protection to the newborn infant. However, little is known about the effect of maternal parasitic infection on placental antibody transfer. To investigate this, we selected, from a parent study of 576 pregnant Kenyan women, four groups of women with term deliveries (≥37 weeks), including uninfected women (N=30) and women with solo infections of malaria (N=30), hookworm (N=30), or schistosomiasis (N=10)...
April 12, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28399686/prevalence-of-congenital-malaria-in-newborns-of-mothers-co-infected-with-hiv-and-malaria-in-benin-city
#16
Fidelis Ewenitie Eki-Udoko, Ayebo E Sadoh, Michael O Ibadin, Augustine I Omoigberale
BACKGROUND: HIV and Plasmodium falciparum malaria co-infection annually complicates about one million pregnancies in sub-Saharan Africa. Congenital malaria (CM) has deleterious effects on newborns. Little is known about the effect of co-infections on the prevalence of CM in infants born by these women. This study was carried out to determine the prevalence of CM in newborns of mothers co-infected with HIV and malaria compared to HIV-negative mothers with malaria in Benin-City. METHODS: Subjects were 162 newborns of mothers co-infected with HIV and malaria...
April 11, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28380252/neutrophil-alterations-in-pregnancy-associated-malaria-and-induction-of-neutrophil-chemotaxis-by-plasmodium-falciparum
#17
Stéphanie Boström, Christentze Schmiegelow, Ulrike Abu Abed, Daniel Tr Minja, John Lusingu, Volker Brinkmann, Yabo J Honkpehedji, Marguerite M Loembe, Ayôla A Adegnika, Benjamin Mordmüller, Marita Troye-Blomberg, Borko Amulic
Pregnancy associated malaria (PAM) is a severe form of the disease caused by sequestration of Plasmodium falciparum-infected red blood cells (iRBCs) in the developing placenta. Pathogenesis of PAM is partially based on immunopathology, with frequent monocyte infiltration into the placenta. Neutrophils are abundant blood cells that are essential for immune defence but may also cause inflammatory pathology. Their role in PAM remains unclear. We analysed neutrophil alterations in the context of PAM to better understand their contribution to disease development...
April 5, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/28367735/severe-vivax-malaria-a-prospective-exploration-at-a-tertiary-healthcare-centre-in-southwestern-india
#18
Rishikesh Kumar, Kavitha Saravu
Plasmodium vivax is recognized to cause severe malaria and mortality. We aimed to determine the proportion of disease severity, the spectrum of complications, underlying non-infectious comorbidities and predictors of severity in monoinfection P. vivax malaria among adults at a tertiary healthcare centre in Southwestern India. A prospective cohort study was conducted among microscopically confirmed monoinfection P. vivax acute malaria patients aged, ≥18 years. Cases with pregnancy and concomitant febrile illnesses including mixed malaria were excluded...
May 2017: Pathogens and Global Health
https://www.readbyqxmd.com/read/28367218/evaluation-of-renal-function-in-pregnant-women-with-malaria-a-case-control-study-in-a-mesoendemic-area
#19
Justice Afrifa, Samuel Essien-Baidoo, Albert Baffour Gyau, Richard Kobina Dadzie Ephraim
Background. Malaria is known to have devastating effects on mortality in tropical and subtropical regions with the effect being magnified in people with weakened immunity such as those in pregnancy. We assessed the effect of malaria on renal function of pregnant women receiving antenatal care in a mesoendemic area of Ghana. Methodology. A case-control study that enrolled a total of 100 pregnant women (50 with confirmed gestational malaria as cases and 50 without malaria as controls). Sociodemographic characteristics, obstetric history (obtained with a questionnaire), urea, creatinine, sodium, and potassium were analyzed using a chemistry automated analyzer...
2017: Obstetrics and Gynecology International
https://www.readbyqxmd.com/read/28347311/predictors-of-the-use-of-interventions-to-prevent-malaria-in-pregnancy-in-cameroon
#20
Jodie Dionne-Odom, Andrew O Westfall, Tobias O Apinjoh, Judith Anchang-Kimbi, Eric A Achidi, Alan T N Tita
BACKGROUND: Malaria in pregnancy is common in sub-Saharan Africa where it contributes to perinatal morbidity and mortality. Use of insecticide-treated bed nets and intermittent preventive therapy with sulfadoxine-pyrimethamine during pregnancy are effective but underutilized interventions to prevent infection. Factors associated with bed net ownership and usage, and use of prophylaxis among recently pregnant women in Cameroon were investigated. METHODS: National data from the 2011 Cameroon Demographic Health Survey was used to identify women with a pregnancy within the previous 5 years...
March 27, 2017: Malaria Journal
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