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Severe malaria anemia

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https://www.readbyqxmd.com/read/28927555/comparative-study-of-clinical-presentation-and-hematological-indices-in-hospitalized-sickle-cell-patients-infected-with-severe-plasmodium-falciparum-malaria
#1
Prasanta Purohit, Pradeep Kumar Mohanty, Siris Patel, Padmalaya Das, Jogeswar Panigrahi, Kishalaya Das
BACKGROUND: Sickle-cell-gene has a high frequency in malaria endemic regions. In India, though the prevalence of both sickle-cell-gene and malaria are high, no study has been carried out. This study aims to find out the possible differences in hematological and clinical parameters in severe falciparum malaria with respect to sickle cell genotypes. METHODS: Five hundred fourteen adults with severe falciparum malaria hospitalized at Department of Medicine, Veer Surendra Sai Institute of Medical Sciences and Research, Burla, between August, 2010 to December, 2014 were included and categorized on the basis of sickle cell genotypes...
September 15, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28926409/effects-of-concurrent-exposure-to-antiretrovirals-and-cotrimoxazole-prophylaxis-among-hiv-exposed-uninfected-infants
#2
Alexander C Ewing, Caroline C King, Jeffrey B Wiener, Charles S Chasela, Michael G Hudgens, Debbie Kamwendo, Gerald Tegha, Mina C Hosseinipour, Denise J Jamieson, Charles Van der Horst, Athena P Kourtis
BACKGROUND: Given the potential of Cotrimoxazole preventive therapy (CPT) to prevent bacterial and malarial infections in HIV exposed, uninfected (HEU) infants, it is important to evaluate the effects of its concurrent use with ARV agents that have overlapping toxicity profiles. METHODS: We used data from the Breastfeeding, Antiretrovirals and Nutrition-BAN study (2004-2010) to evaluate the association of CPT and ARV with hematologic measures (hemoglobin, neutrophil, and alanine aminotransferase levels) from 6 to 48 weeks of age in 2,006 HEU infants in Lilongwe, Malawi...
September 18, 2017: AIDS
https://www.readbyqxmd.com/read/28893687/genetic-analysis-of-id1-dbl2x-predicts-its-validity-as-a-vaccine-candidate-in-colombia-and-supports-at-least-two-independently-introduced-plasmodium-falciparum-populations-in-the-region
#3
J Rajwani, C M Klinger, E Arango, M I Arroyo, A Sabbagh, A Maestre, J B Dacks, S Gnidehou, S K Yanow
Pregnancy-associated malaria (PAM) poses a threat to both the mother and fetus, increasing the risk of severe maternal anemia, fetal growth restriction and low birth weight infants. Two vaccines are currently in development to protect women from Plasmodium falciparum in pregnancy. Both vaccine constructs target the ID1-DBL2X domain of VAR2CSA, a protein expressed on the surface of infected erythrocytes (IEs) that mediates parasite sequestration in the placenta. Although development of an effective vaccine may be hampered by ID1-DBL2X polymorphisms expressed by field isolates, a recent study showed that genetic variation of this domain in South American parasite populations is much lower than in other geographical locations...
September 8, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28834130/lack-of-mortality-in-22-children-with-sickle-cell-anemia-and-severe-malarial-anemia
#4
Robert O Opoka, Paul Bangirana, Richard Idro, Estela Shabani, Ruth Namazzi, Chandy C John
Retrospective studies suggest that there is high mortality in children with sickle cell anemia (SCA) and severe malaria. We assessed mortality in Ugandan children with severe malarial anemia (SMA, n = 232) or cerebral malaria (CM, n = 267) by sickle cell hemoglobin genotype. Admission and 2-year follow-up mortality did not differ among children with SMA who had homozygous form of sickle cell hemoglobin (HbSS) versus normal form of adult hemoglobin (admission, 0/22, 0%, vs. 1/208, 0.5%; follow-up, 1/22, 4.5%; 7/207, 3...
August 17, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28829738/case-report-severe-and-complicated-cynomolgi-malaria-in-a-rhesus-macaque-resulted-in-similar-histopathological-changes-as-those-seen-in-human-malaria
#5
COMPARATIVE STUDY
Chester J Joyner, The MaHPIC Consortium, Jennifer S Wood, Alberto Moreno, Anapatricia Garcia, Mary R Galinski
Histopathological data collected from patients with severe malaria have been instrumental for studying malaria pathogenesis. Animal models of malaria are critical to complement such studies. Here, the histopathological changes observed in a rhesus macaque with severe and complicated Plasmodium cynomolgi malaria are reported. The animal presented with thrombocytopenia, severe anemia, and hyperparasitemia during the acute infection. The macaque was given subcurative antimalarial treatment, fluid support, and a blood transfusion to treat the clinical complications, but at the time of transfusion, kidney function was compromised...
August 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28829731/high-prevalence-of-anemia-but-low-level-of-iron-deficiency-in-preschool-children-during-a-low-transmission-period-of-malaria-in-rural-kivu-democratic-republic-of-the-congo
#6
Esto Bahizire, Paluku Bahwere, Philippe Donnen, P Lundimu Tugirimana, Serge Balol'ebwami, Michèle Dramaix, Chouchou Nfundiko, Raphaël Chirimwami, Kanigula Mubagwa
Anemia is a worldwide public health concern especially in preschool children in developing countries and iron deficiency (ID) is generally assumed to cause at least 50% of the cases. However, data on this contribution are scarce. To close this gap, we determined in 2013 the contribution of ID in the etiology of anemia and measured others factors associated to noniron deficiency anemia (NIDA) in 900 preschool children randomly selected during a two-stage cluster nutritional survey in the Miti-Murhesa health zone, in eastern Democratic Republic of the Congo...
August 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28800737/anaemia-in-pregnancy-and-associated-factors-a-cross-sectional-study-of-antenatal-attendants-at-the-sunyani-municipal-hospital-ghana
#7
Peter Anlaakuu, Francis Anto
BACKGROUND: Anaemia in pregnancy is an important health issue resulting in high maternal morbidity and mortality. The purpose of the current study was to identify factors associated with anaemia among pregnant women receiving antenatal care at the Sunyani Municipal Hospital in Ghana. METHODS: A cross-sectional study involving pregnant women seeking antenatal care at the Sunyani Municipal Hospital was conducted between May and June, 2015. It involved the collection of data on socio demographic and obstetric variables, medical interventions and malaria infection, consumption of iron containing foods and supplements using a case record form and a structured questionnaire...
August 11, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28768513/clinical-and-laboratory-predictors-of-death-in-african-children-with-features-of-severe-malaria-a-systematic-review-and-meta-analysis
#8
Paulina Sypniewska, Jose F Duda, Isabella Locatelli, Clotilde Rambaud Althaus, Fabrice Althaus, Blaise Genton
BACKGROUND: The criteria for defining severe malaria have evolved over the last 20 years. We aimed to assess the strength of association of death with features currently characterizing severe malaria through a systematic review and meta-analysis. METHOD: Electronic databases (Medline, Embase, Cochrane Database of Systematic Reviews, Thomson Reuters Web of Knowledge) were searched to identify publications including African children with severe malaria. PRISMA guidelines were followed...
August 3, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28742109/young-sprague-dawley-rats-infected-by-plasmodium-berghei-a-relevant-experimental-model-to-study-cerebral-malaria
#9
Sokhna Keita Alassane, Marie-Laure Nicolau-Travers, Sandie Menard, Olivier Andreoletti, Jean-Pierre Cambus, Noémie Gaudre, Myriam Wlodarczyk, Nicolas Blanchard, Antoine Berry, Sarah Abbes, David Colongo, Babacar Faye, Jean-Michel Augereau, Caroline Lacroux, Xavier Iriart, Françoise Benoit-Vical
Cerebral malaria (CM) is the most severe manifestation of human malaria yet is still poorly understood. Mouse models have been developed to address the subject. However, their relevance to mimic human pathogenesis is largely debated. Here we study an alternative cerebral malaria model with an experimental Plasmodium berghei Keyberg 173 (K173) infection in Sprague Dawley rats. As in Human, not all infected subjects showed cerebral malaria, with 45% of the rats exhibiting Experimental Cerebral Malaria (ECM) symptoms while the majority (55%) of the remaining rats developed severe anemia and hyperparasitemia (NoECM)...
2017: PloS One
https://www.readbyqxmd.com/read/28701845/fatal-postoperative-hemolysis-due-to-severe-falciparum-malaria
#10
Amol T Kothekar, Vijaya Patil, Nambiraj Konar, Jigeeshu Divatia
A 60-year-old apparently healthy female patient underwent mastectomy for breast cancer. She had sinus tachycardia and no other abnormal finding in the preoperative period. However, the immediate postoperative course was stormy with the development of anemia, thrombocytopenia, hemolysis, and renal failure with severe metabolic acidosis. Peripheral blood smear revealed the presence of ring forms of Plasmodium falciparum. Multiorgan failure and death occurred within 36 h of surgery in spite of initiation of antimalarial agents...
June 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28679662/measuring-the-plasmodium-falciparum-hrp2-protein-in-blood-from-artesunate-treated-malaria-patients-predicts-post-artesunate-delayed-hemolysis
#11
Papa Alioune Ndour, Sébastien Larréché, Oussama Mouri, Nicolas Argy, Frédérick Gay, Camille Roussel, Stéphane Jauréguiberry, Claire Perillaud, Dominique Langui, Sylvestre Biligui, Nathalie Chartrel, Audrey Mérens, Eric Kendjo, Aniruddha Ghose, Md Mahtab Uddin Hassan, Md Amir Hossain, Hugh W F Kingston, Katherine Plewes, Arjen M Dondorp, Martin Danis, Sandrine Houzé, Serge Bonnefoy, Marc Thellier, Charles J Woodrow, Pierre A Buffet
Artesunate, the recommended drug for severe malaria, rapidly clears the malaria parasite from infected patients but frequently induces anemia-called post-artesunate delayed hemolysis (PADH)-for which a simple predictive test is urgently needed. The underlying event in PADH is the expulsion of artesunate-exposed parasites from their host erythrocytes by pitting. We show that the histidine-rich protein 2 (HRP2) of the malaria parasite Plasmodium falciparum persists in the circulation of artesunate-treated malaria patients in Bangladesh and in French travelers who became infected with malaria in Africa...
July 5, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28666023/reduction-in-serum-sphingosine-1-phosphate-concentration-in-malaria
#12
Chuchard Punsawad, Parnpen Viriyavejakul
Sphingosine 1-phosphate (S1P) is a lipid mediator formed by the metabolism of sphingomyelin which is involved in the endothelial permeability and inflammation. Although the plasma S1P concentration is reportedly decreased in patients with cerebral malaria, the role of S1P in malaria is still unclear. The purpose of this study was to examine the impact of malaria on circulating S1P concentration and its relationship with clinical data in malaria patients. Serum S1P levels were measured in 29 patients with P...
2017: PloS One
https://www.readbyqxmd.com/read/28649273/high-burden-of-malaria-and-anemia-among-tribal-pregnant-women-in-a-chronic-conflict-corridor-in-india
#13
Gustavo Corrêa, Mrinalini Das, Rama Kovelamudi, Nagendra Jaladi, Charlotte Pignon, Kalyan Vysyaraju, Usha Yedla, Vijya Laxmi, Pavani Vemula, Vijaya Gowthami, Hemant Sharma, Daniel Remartinez, Stobdan Kalon, Kirrily de Polnay, Martin De Smet, Petros Isaakidis
BACKGROUND: With more than 200 million cases a year, malaria is an important global health concern, especially among pregnant women. The forested tribal areas of Andhra Pradesh, Telangana and Chhattisgarh in India are affected by malaria and by an on-going chronic conflict which seriously limits access to health care. The burden of malaria and anemia among pregnant women in these areas is unknown; moreover there are no specific recommendations for pregnant women in the Indian national malaria policy...
2017: Conflict and Health
https://www.readbyqxmd.com/read/28630631/urinalysis-and-clinical-correlations-in-patients-with-p-vivax-or-p-falciparum-malaria-from-colombia
#14
Alberto Tobón-Castaño, Sebastián Barrera Escobar, Cecilia Giraldo Castro
BACKGROUND: Urinalysis is a poorly reviewed diagnostic tool in malaria patients; its application can show the presence of severe malaria. METHODS: Urinalysis was performed in a total of 620 patients diagnosed with malaria by thick blood smear; complications were classified according to WHO major criteria for severity and minor criteria according to the Colombian malaria guideline. RESULTS: Severe or moderate clinical complications were diagnosed in 31...
2017: Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28615262/predictors-of-anemia-in-women-of-reproductive-age-biomarkers-reflecting-inflammation-and-nutritional-determinants-of-anemia-brinda-project
#15
REVIEW
James P Wirth, Bradley A Woodruff, Reina Engle-Stone, Sorrel Ml Namaste, Victor J Temple, Nicolai Petry, Barbara Macdonald, Parminder S Suchdev, Fabian Rohner, Grant J Aaron
Background: Anemia in women of reproductive age (WRA) (age range: 15-49 y) remains a public health problem globally, and reducing anemia in women by 50% by 2025 is a goal of the World Health Assembly.Objective: We assessed the associations between anemia and multiple proximal risk factors (e.g., iron and vitamin A deficiencies, inflammation, malaria, and body mass index) and distal risk factors (e.g., education status, household sanitation and hygiene, and urban or rural residence) in nonpregnant WRA.Design: Cross-sectional, nationally representative data from 10 surveys (n = 27,018) from the Biomarkers Reflecting Inflammation and Nutritional Determinants of Anemia (BRINDA) project were analyzed individually and pooled by the infection burden and risk in the country...
July 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28615260/predictors-of-anemia-in-preschool-children-biomarkers-reflecting-inflammation-and-nutritional-determinants-of-anemia-brinda-project
#16
REVIEW
Reina Engle-Stone, Grant J Aaron, Jin Huang, James P Wirth, Sorrel Ml Namaste, Anne M Williams, Janet M Peerson, Fabian Rohner, Ravi Varadhan, O Yaw Addo, Victor Temple, Pura Rayco-Solon, Barbara Macdonald, Parminder S Suchdev
Background: A lack of information on the etiology of anemia has hampered the design and monitoring of anemia-control efforts.Objective: We aimed to evaluate predictors of anemia in preschool children (PSC) (age range: 6-59 mo) by country and infection-burden category.Design: Cross-sectional data from 16 surveys (n = 29,293) from the Biomarkers Reflecting Inflammation and Nutritional Determinants of Anemia (BRINDA) project were analyzed separately and pooled by category of infection burden. We assessed relations between anemia (hemoglobin concentration <110 g/L) and severe anemia (hemoglobin concentration <70 g/L) and individual-level (age, anthropometric measures, micronutrient deficiencies, malaria, and inflammation) and household-level predictors; we also examined the proportion of anemia with concomitant iron deficiency (defined as an inflammation-adjusted ferritin concentration <12 μg/L)...
July 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28615259/adjusting-ferritin-concentrations-for-inflammation-biomarkers-reflecting-inflammation-and-nutritional-determinants-of-anemia-brinda-project
#17
REVIEW
Sorrel Ml Namaste, Fabian Rohner, Jin Huang, Nivedita L Bhushan, Rafael Flores-Ayala, Roland Kupka, Zuguo Mei, Rahul Rawat, Anne M Williams, Daniel J Raiten, Christine A Northrop-Clewes, Parminder S Suchdev
Background: The accurate estimation of iron deficiency is important in planning and implementing interventions. Ferritin is recommended as the primary measure of iron status, but interpretability is challenging in settings with infection and inflammation.Objective: We assessed the relation between ferritin concentrations and inflammation and malaria in preschool children (PSC) (age range: 6-59 mo) and women of reproductive age (WRA) (age range: 15-49 y) and investigated adjustment algorithms to account for these effects...
July 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28615251/adjusting-retinol-binding-protein-concentrations-for-inflammation-biomarkers-reflecting-inflammation-and-nutritional-determinants-of-anemia-brinda-project
#18
REVIEW
Leila M Larson, Sorrel Ml Namaste, Anne M Williams, Reina Engle-Stone, O Yaw Addo, Parminder S Suchdev, James P Wirth, Victor Temple, Mary Serdula, Christine A Northrop-Clewes
Background: The accurate estimation of the prevalence of vitamin A deficiency (VAD) is important in planning and implementing interventions. Retinol-binding protein (RBP) is often used in population surveys to measure vitamin A status, but its interpretation is challenging in settings where inflammation is common because RBP concentrations decrease during the acute-phase response.Objectives: We aimed to assess the relation between RBP concentrations and inflammation and malaria in preschool children (PSC) (age range: 6-59 mo) and women of reproductive age (WRA) (age range: 15-49 y) and to investigate adjustment algorithms to account for these effects...
July 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28605472/safety-and-efficacy-of-adding-a-single-low-dose-of-primaquine-to-the-treatment-of-adult-patients-with-plasmodium-falciparum-malaria-in-senegal-to-reduce-gametocyte-carriage-a-randomized-controlled-trial
#19
Roger C Tine, Khadime Sylla, Babacar T Faye, Eugenie Poirot, Fatou B Fall, Doudou Sow, Duolao Wang, Magatte Ndiaye, Jean Louis Ndiaye, Babacar Faye, Brian Greenwood, Oumar Gaye, Paul Milligan
Introduction.: More information is needed about the safety of low-dose primaquine in populations where G6PD deficiency is common. Methods.: Adults with Plasmodium falciparum malaria were randomized to receive 1 of 3 artemisinin combination therapies (ACTs) with or without primaquine (0.25 mg/kg). Glucose-6-phosphate dehydrogenase (G6PD) status was determined using a rapid test. Patients were followed for 28 days to record hemoglobin concentration, adverse events, and gametocyte carriage...
June 12, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28604825/burden-and-impact-of-plasmodium-vivax-in-pregnancy-a-multi-centre-prospective-observational-study
#20
MULTICENTER STUDY
Azucena Bardají, Flor Ernestina Martínez-Espinosa, Myriam Arévalo-Herrera, Norma Padilla, Swati Kochar, Maria Ome-Kaius, Camila Bôtto-Menezes, María Eugenia Castellanos, Dhanpat Kumar Kochar, Sanjay Kumar Kochar, Inoni Betuela, Ivo Mueller, Stephen Rogerson, Chetan Chitnis, Dhiraj Hans, Michela Menegon, Carlo Severini, Hernando Del Portillo, Carlota Dobaño, Alfredo Mayor, Jaume Ordi, Mireia Piqueras, Sergi Sanz, Mats Wahlgren, Laurence Slutsker, Meghna Desai, Clara Menéndez
BACKGROUND: Despite that over 90 million pregnancies are at risk of Plasmodium vivax infection annually, little is known about the epidemiology and impact of the infection in pregnancy. METHODOLOGY AND PRINCIPAL FINDINGS: We undertook a health facility-based prospective observational study in pregnant women from Guatemala (GT), Colombia (CO), Brazil (BR), India (IN) and Papua New Guinea PNG). Malaria and anemia were determined during pregnancy and fetal outcomes assessed at delivery...
June 2017: PLoS Neglected Tropical Diseases
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