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https://www.readbyqxmd.com/read/28549426/effect-of-iptp-on-plasmodium-falciparum-antibody-levels-among-pregnant-women-and-their-babies-in-a-sub-urban-coastal-area-in-ghana
#1
Judith K Stephens, Eric Kyei-Baafour, Emmanuel K Dickson, Jones K Ofori, Michael F Ofori, Mark L Wilson, Isabella A Quakyi, Bartholomew D Akanmori
BACKGROUND: Women exposed to Plasmodium infection develop antibodies and become semi-immune. This immunity is suppressed during pregnancy making both the pregnant woman and the foetus vulnerable to the adverse effects of malaria, particularly by Plasmodium falciparum. Intermittent preventive treatment of malaria in pregnancy (IPTp) with Sulfadoxine-pyrimethamine (SP) tablets is one of the current interventions to mitigate the effects of malaria on both the pregnant woman and the unborn child...
May 26, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28545583/private-sector-role-readiness-and-performance-for-malaria-case-management-in-uganda-2015
#2
Henry Kaula, Peter Buyungo, Jimmy Opigo
BACKGROUND: Several interventions have been put in place to promote access to quality malaria case management services in Uganda's private sector, where most people seek treatment. This paper describes evidence using a mixed-method approach to examine the role, readiness and performance of private providers at a national level in Uganda. These data will be useful to inform strategies and policies for improving malaria case management in the private sector. METHODS: The ACTwatch national anti-malarial outlet survey was conducted concurrently with a fever case management study...
May 25, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28542578/illness-experiences-of-diabetes-in-the-context-of-malaria-in-settings-experiencing-double-burden-of-disease-in-southeastern-tanzania
#3
Emmy Metta, Ajay Bailey, Flora Kessy, Eveline Geubbels, Hinke Haisma
BACKGROUND: Tanzania is doubly burdened with both non-communicable and infectious diseases, but information on how Tanzanians experience the co-existence of these conditions is limited. Using Kleinman's eight prompting questions the study synthesizes explanatory models from patients to describe common illness experiences of diabetes in a rural setting where malaria is the predominant health threat. METHODS: We conducted 17 focus group discussions with adult members of the general community, diabetes patients, neighbours and relatives of diabetes patients to gain insight into shared experiences...
2017: PloS One
https://www.readbyqxmd.com/read/28542307/the-mouse-char10-locus-regulates-severity-of-pyruvate-kinase-deficiency-and-susceptibility-to-malaria
#4
Aurélie Laroque, Gundula Min-Oo, Mifong Tam, Prem Ponka, Mary M Stevenson, Philippe Gros
Pyruvate kinase (PKLR) deficiency protects mice and humans against blood-stage malaria. Although mouse strain AcB62 carries a malaria-protective PklrI90N genetic mutation, it is phenotypically susceptible to blood stage malaria induced by infection with Plasmodium chabaudi AS, suggesting a genetic modifier of the PklrI90N protective effect. Linkage analysis in a F2 cross between AcB62 (PklrI90N) and another PK deficient strain CBA/Pk (PklrG338D) maps this modifier (designated Char10) to chromosome 9 (LOD = 10...
2017: PloS One
https://www.readbyqxmd.com/read/28542123/malaria-surveillance-united-states-2014
#5
Kimberly E Mace, Paul M Arguin
PROBLEM/CONDITION: Malaria in humans is caused by intraerythrocytic protozoa of the genus Plasmodium. These parasites are transmitted by the bite of an infective female Anopheles mosquito. The majority of malaria infections in the United States occur among persons who have traveled to regions with ongoing malaria transmission. However, malaria is occasionally acquired by persons who have not traveled out of the country through exposure to infected blood products, congenital transmission, laboratory exposure, or local mosquitoborne transmission...
May 26, 2017: MMWR. Surveillance Summaries: Morbidity and Mortality Weekly Report. Surveillance Summaries
https://www.readbyqxmd.com/read/28541483/malaria-host-candidate-genes-validated-by-association-with-current-recent-and-historic-measures-of-transmission-intensity
#6
Nuno Sepúlveda, Alphaxard Manjurano, Susana G Campino, Martha Lemnge, John Lusingu, Raimos Olomi, Kirk A Rockett, Christina Hubbart, Anna Jeffreys, Kate Rowlands, Taane G Clark, Eleanor M Riley, Chris J Drakeley
Background: Human malaria susceptibility is determined by multiple genetic factors. It is however unclear which genetic variants remain important over time. Methods: Genetic associations of 175 high quality polymorphisms within several malaria candidate genes were examined in a sample of 8,096 individuals from northeast Tanzania using altitude, seroconversion rates and parasite rates as proxies of historical, recent and current malaria transmission intensity. A principal component (PC) analysis was used to derive two alternative measures of overall malaria propensity of a location across different time scales...
May 25, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28540269/species-dependent-clinical-findings-of-malaria-caused-by-various-plasmodia-in-an-endemic-area-of-kerman-province-southeastern-iran
#7
Mehdi Nateghpour, Ali Hosseininasab, Mehrdad Farrokhnia, Foroughieh Dastouri, Katayun Alidoosti, Dadkhoda Sadequi, Asadollah Ahmadi
BACKGROUND: Malaria is a big problem of public health in many tropical countries where socioeconomic development is deficient. Four species of plasmodium are capable of infecting human: P. falciparum, P. malaria, P.vivax, P. ovale. Southeastern corner of Iran, including Sistan and Baluchestan, Hormozgan and the tropical part of Kerman Province, are endemic region of malaria. This study aimed to find out clinical findings in malaria caused by various plasmodium species in moderate transmission area of southern Kerman Province...
April 2017: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/28536344/aptamer-technology-adjunct-therapy-for-malaria
#8
REVIEW
Nik Abdul Aziz Nik Kamarudin, Nurul Adila Mohammed, Khairul Mohd Fadzli Mustaffa
Malaria is a life-threatening parasitic infection occurring in the endemic areas, primarily in children under the age of five, pregnant women, and patients with human immunodeficiency virus and acquired immunodeficiency syndrome (HIV)/(AIDS) as well as non-immune individuals. The cytoadherence of infected erythrocytes (IEs) to the host endothelial surface receptor is a known factor that contributes to the increased prevalence of severe malaria cases due to the accumulation of IEs, mainly in the brain and other vital organs...
January 4, 2017: Biomedicines
https://www.readbyqxmd.com/read/28535809/safety-and-tolerability-of-adjunctive-rosiglitazone-treatment-for-children-with-uncomplicated-malaria
#9
Rosauro Varo, Valerie M Crowley, Antonio Sitoe, Lola Madrid, Lena Serghides, Rubao Bila, Helio Mucavele, Alfredo Mayor, Quique Bassat, Kevin C Kain
BACKGROUND: Despite the widespread use and availability of rapidly acting anti-malarials, the fatality rate of severe malaria in sub-Saharan Africa remains high. Adjunctive therapies that target the host response to malaria infection may further decrease mortality over that of anti-malarial agents alone. Peroxisome proliferator-activated receptor-gamma agonists (e.g. rosiglitazone) have been shown to act on several pathways implicated in the pathogenesis of severe malaria and may improve clinical outcome as an adjunctive intervention...
May 23, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28535801/molecular-markers-of-anti-malarial-drug-resistance-in-central-west-and-east-african-children-with-severe-malaria
#10
Christian N Nguetse, Ayola Akim Adegnika, Tsiri Agbenyega, Bernhards R Ogutu, Sanjeev Krishna, Peter G Kremsner, Thirumalaisamy P Velavan
BACKGROUND: The Plasmodium falciparum multidrug resistance 1 (PfMDR1), P. falciparum Ca(2+)-ATPase (PfATP6) and Kelch-13 propeller domain (PfK13) loci are molecular markers of parasite susceptibility to anti-malarial drugs. Their frequency distributions were determined in the isolates collected from children with severe malaria originating from three African countries. METHODS: Samples from 287 children with severe malaria [(Gabon: n = 114); (Ghana: n = 89); (Kenya: n = 84)] were genotyped for pfmdr1, pfatp6 and pfk13 loci by DNA sequencing and assessing pfmdr1 copy number variation (CNV) by real-time PCR...
May 23, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28535793/intermittent-preventive-treatment-for-malaria-among-children-in-a-refugee-camp-in-northern-uganda-lessons-learned
#11
Matthew E Coldiron, Estrella Lasry, Malika Bouhenia, Debashish Das, Peter Okui, Dan Nyehangane, Juliet Mwanga, Celine Langendorf, Greg Elder, Léon Salumu, Rebecca F Grais
Northern Uganda hosts a large population of refugees from South Sudan, and malaria is one of the major health problems in the area. In 2015, intermittent preventive treatment for malaria (IPTc) was implemented in two refugee camps among children aged 6 months to 14 years. Three distributions of dihydroartemisinin-piperaquine (DP) were conducted at 8-week intervals. The first dose was directly administered at IPTc distribution sites and the second and third doses were given to caregivers to administer at home...
May 23, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28531845/artesunate-and-erythropoietin-synergistically-improve-the-outcome-of-experimental-cerebral-malaria
#12
Yunting Du, Guang Chen, Xuexing Zhang, Chunyun Yu, Yaming Cao, Liwang Cui
Cerebral malaria (CM) is a severe neurological syndrome in humans and the main fatal cause of malaria. In malaria epidemic regions, despite appropriate anti-malarial treatment, 10-20% of deaths still occur during the acute phase. This is largely attributable to poor treatment access, therapeutic complexity and drug resistance; thus, developing additional clinical adjunctive therapies is an urgent necessity. In this study, we investigated the effect of artesunate (AST) and recombinant human erythropoietin (rhEPO) using an experimental cerebral malaria (ECM) model-C57BL/6 mice infected with Plasmodium berghei ANKA (PbA)...
May 19, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28531196/co-inheritance-of-glucose-6-phosphate-dehydrogenase-deficiency-mutations-and-hemoglobin-e-in-a-kachin-population-in-a-malaria-endemic-region-of-southeast-asia
#13
Zeshuai Deng, Fang Yang, Yao Bai, Lijun He, Qing Li, Yanrui Wu, Lan Luo, Hong Li, Limei Ma, Zhaoqing Yang, Yongshu He, Liwang Cui
Glucose-6-phosphate dehydrogenase (G6PD) deficiency and hemoglobin E (HbE, β26 Glu-Lys) are two common red cell disorders in Southeast Asia. G6PD deficiency produces hemolytic anemia, which can be triggered by certain drugs or infections. HbE is asymptomatic or is manifested as microcytic, minimally hemolytic anemia. The association between G6PD deficiency and HbE is little understood. This study aimed to investigate G6PD deficiency and HbE in a Kachin ethnic group in the China-Myanmar border area. G6PD enzyme activity was measured using a quantitative G6PD assay, G6PD variants genotyped by the SNaPshot assay, and an HbE gene mutation identified by an amplification refractory mutation system and subsequently confirmed by using a reverse dot blot hybridization assay from 100 unrelated individuals in the study area...
2017: PloS One
https://www.readbyqxmd.com/read/28526075/testing-times-trends-in-availability-price-and-market-share-of-malaria-diagnostics-in-the-public-and-private-healthcare-sector-across-eight-sub-saharan-african-countries-from-2009-to-2015
#14
Kara Hanson, Catherine Goodman
BACKGROUND: The World Health Organization guidelines have recommended that all cases of suspected malaria should receive a confirmatory test with microscopy or a malaria rapid diagnostic test (RDT), however evidence from sub-Saharan Africa (SSA) illustrates that only one-third of children under five with a recent fever received a test. The aim of this study was to evaluate availability, price and market share of microscopy and RDT from 2009/11 to 2014/15 in 8 SSA countries, to better understand barriers to improving access to malaria confirmatory testing in the public and private health sectors...
May 19, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28524208/microfluidic-analysis-of-red-blood-cell-deformability-as-a-means-to-assess-hemin-induced-oxidative-stress-resulting-from-plasmodium-falciparum-intraerythrocytic-parasitism
#15
Kerryn Matthews, Simon P Duffy, Marie-Eve Myrand-Lapierre, Richard R Ang, Li Li, Mark D Scott, Hongshen Ma
Hemolytic anemia is one of the hallmarks of malaria and leads to an increase in oxidized heme (hemin) within the plasma of infected individuals. While scavenger proteins sequester much of the circulating heme, it has been hypothesized that extracellular heme may play a central role in malaria pathogenesis. We have previously developed the multiplex fluidic plunger (MFP) device for the measurement of red blood cell (RBC) deformability. Here, we demonstrate that the measurement of changes in RBC deformability is a sensitive method for inferring heme-induced oxidative stress...
May 19, 2017: Integrative Biology: Quantitative Biosciences From Nano to Macro
https://www.readbyqxmd.com/read/28522690/resistance-to-malaria-through-structural-variation-of-red-blood-cell-invasion-receptors
#16
Ellen M Leffler, Gavin Band, George B J Busby, Katja Kivinen, Quang Si Le, Geraldine M Clarke, Kalifa A Bojang, David J Conway, Muminatou Jallow, Fatoumatta Sisay-Joof, Edith C Bougouma, Valentina D Mangano, David Modiano, Sodiomon B Sirima, Eric Achidi, Tobias O Apinjoh, Kevin Marsh, Carolyne M Ndila, Norbert Peshu, Thomas N Williams, Chris Drakeley, Alphaxard Manjurano, Hugh Reyburn, Eleanor Riley, David Kachala, Malcolm Molyneux, Vysaul Nyirongo, Terrie Taylor, Nicole Thornton, Louise Tilley, Shane Grimsley, Eleanor Drury, Jim Stalker, Victoria Cornelius, Christina Hubbart, Anna E Jeffreys, Kate Rowlands, Kirk A Rockett, Chris C A Spencer, Dominic P Kwiatkowski
The malaria parasite Plasmodium falciparum invades human red blood cells via interactions between host and parasite surface proteins. By analyzing genome sequence data from human populations, including 1269 individuals from sub-Saharan Africa, we identify a diverse array of large copy number variants affecting the host invasion receptor genes GYPA and GYPB We find that a nearby association with severe malaria is explained by a complex structural rearrangement involving the loss of GYPB and gain of two GYPB-A hybrid genes, which encode a serologically distinct blood group antigen known as Dantu...
May 18, 2017: Science
https://www.readbyqxmd.com/read/28522274/relationship-between-exposure-to-malaria-and-haemoglobin-level-of-children-2-9-years-old-in-low-malaria-transmission-settings
#17
Zewdie Birhanu, Yemane Ye-Ebiyo Yihdego, Daniel Emana, Damtew Feyissa, Silashi Kenate, Estifanos Kebede, Kefelegn Getahun, Delenasaw Yewhalaw
In the context of reduced transmission of malaria, it is essential to examine the association between exposure to malaria and haemoglobin level. This study measured the Haemoglobin level of children 2-9 years of age and examined its association with malariometric indices. A cross sectional study was conducted, during June 2016, on 763 children 2-9 years old, recruited from ten sites representing different malaria transmission settings in Ethiopia. Haemoglobin concentration was determined using HemoCue analyzer...
May 15, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28516178/a-multi-walled-carbon-nanotube-zinc-oxide-nanofiber-based-flexible-chemiresistive-biosensor-for-malaria-biomarker-detection
#18
Brince Paul K, Asisa Kumar Panigrahi, Vikrant Singh, Shiv Govind Singh
We report the fabrication of a flexible, lightweight and disposable multi walled carbon nanotube (MWCNT)-zinc oxide (ZnO) nanofiber based chemiresistive biosensor for label free detection of the malaria biomarker, histidine rich protein II (HRP2). The sensing platform is formed by depositing nanofibers in between the source and drain electrodes patterned on a thin, flexible polyethylene terephthalate (PET) substrate. MWCNT-ZnO nanofibers are synthesized via the electrospinning technique followed by a calcination process...
May 18, 2017: Analyst
https://www.readbyqxmd.com/read/28515614/symmetrical-peripheral-gangrene-in-severe-plasmodium-vivax-malaria
#19
Prabhat Kumar, Ghazal Tansir, Harish Gupta, Juhi Dixit
No abstract text is available yet for this article.
April 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28513513/electrocardiographic-changes-and-troponin-t-levels-in-children-with-severe-malaria-anemia-and-heart-failure
#20
W E Sadoh, J O Uduebor
BACKGROUND: Severe malaria anemia is a major cause of childhood heart failure in malaria endemic countries. The resulting hypoxic-ischemic injuries may cause myocardial damage detectable by electrocardiogram (ECG) and elevated troponin T (cTnT) levels. OBJECTIVE: Evaluate the ECG changes and cTnT levels in children with severe malaria anemia compared with those who had uncomplicated malaria without anemia. METHODS: Consecutive children with severe malaria anemia were recruited as subjects while controls were age- and gender-matched children with uncomplicated malaria without anemia...
May 2017: Nigerian Journal of Clinical Practice
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