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https://www.readbyqxmd.com/read/28034892/how-i-treat-anemia-in-pregnancy-iron-cobalamin-and-folate
#1
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/28018860/evidencing-the-role-of-erythrocytic-apoptosis-in-malarial-anemia
#2
REVIEW
Paulo R R Totino, Cláudio T Daniel-Ribeiro, Maria de Fátima Ferreira-da-Cruz
In the last decade it has become clear that, similarly to nucleated cells, enucleated red blood cells (RBCs) are susceptible to programmed apoptotic cell death. Erythrocytic apoptosis seems to play a role in physiological clearance of aged RBCs, but it may also be implicated in anemia of different etiological sources including drug therapy and infectious diseases. In malaria, severe anemia is a common complication leading to death of children and pregnant women living in malaria-endemic regions of Africa. The pathogenesis of malarial anemia is multifactorial and involves both ineffective production of RBCs by the bone marrow and premature elimination of non-parasitized RBCs, phenomena potentially associated with apoptosis...
2016: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/27980857/comparative-antibody-responses-against-three-antimalarial-vaccine-candidate-antigens-from-urban-and-rural-exposed-individuals-in-gabon
#3
Roméo-Karl Imboumy-Limoukou, Sandrine Lydie Oyegue-Liabagui, Stella Ndidi, Irène Pegha-Moukandja, Charlene Lady Kouna, Francis Galaway, Isabelle Florent, Jean Bernard Lekana-Douki
The analysis of immune responses in diverse malaria endemic regions provides more information to understand the host's immune response to Plasmodium falciparum. Several plasmodial antigens have been reported as targets of human immunity. PfAMA1 is one of most studied vaccine candidates; PfRH5 and Pf113 are new promising vaccine candidates. The aim of this study was to evaluate humoral response against these three antigens among children of Lastourville (rural area) and Franceville (urban area). Malaria was diagnosed using rapid diagnosis tests...
December 1, 2016: European Journal of Microbiology & Immunology
https://www.readbyqxmd.com/read/27940786/long-term-behavioral-problems-in-children-with-severe-malaria
#4
John Mbaziira Ssenkusu, James Steven Hodges, Robert Opika Opoka, Richard Idro, Elsa Shapiro, Chandy Chiramukhathu John, Paul Bangirana
BACKGROUND: Severe malaria in children is associated with long-term neurocognitive impairment, but it is unclear whether it is associated with long-term behavioral problems. METHODS: Children <5 years old with cerebral malaria (CM) or severe malarial anemia (SMA) treated at Mulago Hospital, Kampala, Uganda were assessed for behavioral outcomes at 0, 6, 12, and 24 months using the Child Behavior Checklist. Sample sizes at 0, 12, and 24 months were 122, 100, and 80 in the CM group, 130, 98, and 81 in the SMA group, and 149, 123, and 90 in healthy community control (CC) children, respectively...
November 2016: Pediatrics
https://www.readbyqxmd.com/read/27920394/blood-transfusion-delay-and-outcome-in-county-hospitals-in-kenya
#5
Julius Thomas, Philip Ayieko, Morris Ogero, Susan Gachau, Boniface Makone, Wycliffe Nyachiro, George Mbevi, Mercy Chepkirui, Lucas Malla, Jacquie Oliwa, Grace Irimu, Mike English
Severe anemia is a leading indication for blood transfusion and a major cause of hospital admission and mortality in African children. Failure to initiate blood transfusion rapidly enough contributes to anemia deaths in sub-Saharan Africa. This article examines delays in accessing blood and outcomes in transfused children in Kenyan hospitals. Children admitted with nonsurgical conditions in 10 Kenyan county hospitals participating in the Clinical Information Network who had blood transfusion ordered from September 2013 to March 2016 were studied...
December 5, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27905971/trends-causes-and-risk-factors-of-mortality-among-children-under-5-in-ethiopia-1990-2013-findings-from-the-global-burden-of-disease-study-2013
#6
Amare Deribew, Gizachew Assefa Tessema, Kebede Deribe, Yohannes Adama Melaku, Yihunie Lakew, Azmeraw T Amare, Semaw F Abera, Mesoud Mohammed, Abiy Hiruye, Efrem Teklay, Awoke Misganaw, Nicholas Kassebaum
BACKGROUND: Ethiopia has made remarkable progress in reducing child mortality over the last two decades. However, the under-5 mortality rate in Ethiopia is still higher than the under-5 mortality rates of several low- and middle-income countries (LMIC). On the other hand, the patterns and causes of child mortality have not been well investigated in Ethiopia. The objective of this study was to investigate the mortality trend, causes of death, and risk factors among children under 5 in Ethiopia during 1990-2013...
November 14, 2016: Population Health Metrics
https://www.readbyqxmd.com/read/27895843/severe-anemia-in-malawian-children
#7
Job Cj Calis, Kamija S Phiri, E Brian Faragher, Bernard J Brabin, Imelda Bates, Luis E Cuevas, Rob J de Haan, Ajib I Phiri, Pelani Malange, Mirriam Khoka, Paul Jm Hulshof, Lisette van Lieshout, Marcel Ghm Beld, Yik Y Teo, Kirk A Rockett, Anna Richardson, Dominic P Kwiatkowski, Malcolm E Molyneux, Michaël Boele van Hensbroek
BACKGROUND: Severe anemia is a major cause of sickness and death in African children, yet the causes of anemia in this population have been inadequately studied. METHODS: We conducted a case-control study of 381 preschool children with severe anemia (hemoglobin concentration, <5.0 g per deciliter) and 757 preschool children without severe anemia in urban and rural settings in Malawi. Causal factors previously associated with severe anemia were studied. The data were examined by multivariate analysis and structural equation modeling...
September 2016: Malawi Medical Journal: the Journal of Medical Association of Malawi
https://www.readbyqxmd.com/read/27891065/trends-causes-and-risk-factors-of-mortality-among-children-under-5-in-ethiopia-1990-2013-findings-from-the-global-burden-of-disease-study-2013
#8
Amare Deribew, Gizachew Assefa Tessema, Kebede Deribe, Yohannes Adama Melaku, Yihunie Lakew, Azmeraw T Amare, Semaw F Abera, Mesoud Mohammed, Abiy Hiruye, Efrem Teklay, Awoke Misganaw, Nicholas Kassebaum
BACKGROUND: Ethiopia has made remarkable progress in reducing child mortality over the last two decades. However, the under-5 mortality rate in Ethiopia is still higher than the under-5 mortality rates of several low- and middle-income countries (LMIC). On the other hand, the patterns and causes of child mortality have not been well investigated in Ethiopia. The objective of this study was to investigate the mortality trend, causes of death, and risk factors among children under 5 in Ethiopia during 1990-2013...
2016: Population Health Metrics
https://www.readbyqxmd.com/read/27872735/fetal-hemoglobin-modifies-the-disease-manifestation-of-severe-plasmodium-falciparum-malaria-in-adult-patients-with-sickle-cell-anemia
#9
Prasanta Purohit, Siris Patel, Pradeep Kumar Mohanty, Padmalaya Das, Jogeswar Panigrahi
No abstract text is available yet for this article.
2016: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/27855617/eryptosis-ally-or-enemy
#10
Marilena Briglia, Maria Antonia Rossi, Caterina Faggio
Prior to senescence, erythrocytes may, experience injury which compromises their integrity and thus triggers suicidal erythrocyte death or eryptosis. This mechanism is characterised by cell shrinkage, cell membrane blebbing, and cell membrane phospholipid scrambling after phosphatidylserine exposure on the cell surface that is identified by macrophages which engulf and degrade the eryptotic cells. The term eryptosis also includes typical mechanisms, which contribute to the triggering of this process. Among them: oxidative stress, Ca2+ entry with an increase in cytosolic Ca2+ activity ([Ca ]i) and the activation of p38 kinase, which is a kinase expressed in human erythrocytes and activated after hyperosmotic shock...
November 18, 2016: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/27852523/anemia-offers-stronger-protection-than-sickle-cell-trait-against-the-erythrocytic-stage-of-falciparum-malaria-and-this-protection-is-reversed-by-iron-supplementation
#11
M M Goheen, R Wegmüller, A Bah, B Darboe, E Danso, M Affara, D Gardner, J C Patel, A M Prentice, C Cerami
BACKGROUND: Iron deficiency causes long-term adverse consequences for children and is the most common nutritional deficiency worldwide. Observational studies suggest that iron deficiency anemia protects against Plasmodium falciparum malaria and several intervention trials have indicated that iron supplementation increases malaria risk through unknown mechanism(s). This poses a major challenge for health policy. We investigated how anemia inhibits blood stage malaria infection and how iron supplementation abrogates this protection...
December 2016: EBioMedicine
https://www.readbyqxmd.com/read/27835682/cytoadhesion-to-gc1qr-through-plasmodium-falciparum-erythrocyte-membrane-protein-1-in-severe-malaria
#12
Ariel Magallón-Tejada, Sónia Machevo, Pau Cisteró, Thomas Lavstsen, Pedro Aide, Mercedes Rubio, Alfons Jiménez, Louise Turner, Aida Valmaseda, Himanshu Gupta, Briegel De Las Salas, Inacio Mandomando, Christian W Wang, Jens E V Petersen, Jose Muñoz, Joaquim Gascón, Eusebio Macete, Pedro L Alonso, Chetan E Chitnis, Quique Bassat, Alfredo Mayor
Cytoadhesion of Plasmodium falciparum infected erythrocytes to gC1qR has been associated with severe malaria, but the parasite ligand involved is currently unknown. To assess if binding to gC1qR is mediated through the P. falciparum erythrocyte membrane protein 1 (PfEMP1) family, we analyzed by static binding assays and qPCR the cytoadhesion and var gene transcriptional profile of 86 P. falciparum isolates from Mozambican children with severe and uncomplicated malaria, as well as of a P. falciparum 3D7 line selected for binding to gC1qR (Pf3D7gC1qR)...
November 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27818359/delayed-haemolysis-secondary-to-treatment-of-severe-malaria-with-intravenous-artesunate-report-on-the-experience-of-a-referral-centre-for-tropical-infections-in-spain
#13
Teresa Aldámiz-Echevarría Lois, Ana López-Polín, Francesca F Norman, Begoña Monge-Maillo, Rogelio López-Vélez, Jose Antonio Pérez-Molina
BACKGROUND: Post-artesunate delayed haemolysis is described as hemolytic anemia presenting days after malaria treatment in hyperparasitemic patients. Physiopathological mechanisms and clinical manifestations have not been thoroughly characterised. METHODS: We conducted a retrospective study of hospitalised malaria patients who received artemisinin derivatives from January 1, 2010 to December 31, 2015. RESULTS: 21 patients were included in the study: 11 travellers, 8 travellers visiting friends and relatives and 2 immigrants...
November 3, 2016: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/27814710/methemoglobin-and-nitric-oxide-therapy-in-ugandan-children-hospitalized-for-febrile-illness-results-from-a-prospective-cohort-study-and-randomized-double-blind-placebo-controlled-trial
#14
Andrea L Conroy, Michael Hawkes, Kyla Hayford, Laura Hermann, Chloe R McDonald, Suparna Sharma, Sophie Namasopo, Robert O Opoka, Chandy C John, W Conrad Liles, Christopher Miller, Kevin C Kain
BACKGROUND: Exposure of red blood cells to oxidants increases production of methemoglobin (MHb) resulting in impaired oxygen delivery to tissues. There are no reliable estimates of methemoglobinemia in low resource clinical settings. Our objectives were to: i) evaluate risk factors for methemoglobinemia in Ugandan children hospitalized with fever (study 1); and ii) investigate MHb responses in critically ill Ugandan children with severe malaria treated with inhaled nitric oxide (iNO), an oxidant that induces MHb in a dose-dependent manner (study 2)...
November 4, 2016: BMC Pediatrics
https://www.readbyqxmd.com/read/27785088/acute-kidney-injury-in-a-shepherd-with-severe-malaria-a-case-report
#15
Boushab Mohamed Boushab, Fatim-Zahra Fall-Malick, Mamoudou Savadogo, Leonardo Kishi Basco
Malaria is one of the main reasons for outpatient consultation and hospitalization in Mauritania. Although four Plasmodium species, ie, Plasmodium (P.) falciparum, P. vivax, P. malariae, and P. ovale, cause malaria in Mauritania, recent data on their frequency is lacking. Since infections with P. falciparum generally result in serious disease, their identification is important. We report a case of oliguric renal injury associated with malaria in a 65-year-old shepherd. Clinical manifestations included anemia, oliguria, and elevated creatinine and urea...
2016: International Journal of Nephrology and Renovascular Disease
https://www.readbyqxmd.com/read/27749907/safety-and-immunogenicity-of-pfs25-epa-alhydrogel%C3%A2-a-transmission-blocking-vaccine-against-plasmodium-falciparum-an-open-label-study-in-malaria-na%C3%A3-ve-adults
#16
Kawsar R Talaat, Ruth D Ellis, Janet Hurd, Autumn Hentrich, Erin Gabriel, Noreen A Hynes, Kelly M Rausch, Daming Zhu, Olga Muratova, Raul Herrera, Charles Anderson, David Jones, Joan Aebig, Sarah Brockley, Nicholas J MacDonald, Xiaowei Wang, Michael P Fay, Sara A Healy, Anna P Durbin, David L Narum, Yimin Wu, Patrick E Duffy
Transmission-blocking vaccines (TBVs) that target sexual stage parasite development could be an integral part of measures for malaria elimination. Pfs25 is a leading TBV candidate, and previous studies conducted in animals demonstrated an improvement of its functional immunogenicity after conjugation to EPA, a recombinant, detoxified ExoProtein A from Pseudomonas aeruginosa. In this report, we describe results of an open-label, dose-escalating Phase 1 trial to assess the safety and immunogenicity of Pfs25-EPA conjugates formulated with Alhydrogel®...
2016: PloS One
https://www.readbyqxmd.com/read/27708211/can-mutations-in-the-gene-encoding-transcription-factor-eklf-erythroid-kr%C3%A3-ppel-like-factor-protect-us-against-infectious-and-parasitic-diseases
#17
Krzysztof Mikołajczyk, Radosław Kaczmarek, Marcin Czerwiński
Transcription factor EKLF (Erythroid Krüppel-Like Factor) belongs to the group of Krüppellike factors, which regulate proliferation, differentiation, development and apoptosis of mammalian cells. EKLF factor is present in erythroid cells, where it participates in regulation of hematopoiesis, expression of genes encoding transmembrane proteins (including blood group antigens), and heme biosynthesis enzymes. It is also a key factor in downregulation of γ-globins and activation of β-globin gene expression...
October 6, 2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/27684745/differing-causes-of-lactic-acidosis-and-deep-breathing-in-cerebral-malaria-and-severe-malarial-anemia-may-explain-differences-in-acidosis-related-mortality
#18
Nathan R Brand, Robert O Opoka, Karen E S Hamre, Chandy C John
Lactic acidosis (LA) is a marker for mortality in severe malaria, but the mechanisms that lead to LA in the different types of severe malaria and the extent to which LA-associated mortality differs by type of severe malaria are not well described. We assessed the frequency of LA in children admitted to Mulago Hospital, Kampala, Uganda with cerebral malaria (CM, n = 193) or severe malarial anemia (SMA, n = 216). LA was compared to mortality and measures of parasite biomass and sequestration (P. falciparum histidine-rich protein-2 (PfHRP2) concentration, platelet count), and to a measure of systemic tissue oxygen delivery (hemoglobin level)...
2016: PloS One
https://www.readbyqxmd.com/read/27658439/erythroferrone-contributes-to-hepcidin-repression-in-a-mouse-model-of-malarial-anemia
#19
Chloé Latour, Myriam F Wlodarczyk, Grace Jung, Aurélie Gineste, Nicolas Blanchard, Tomas Ganz, Marie-Paule Roth, Hélène Coppin, Léon Kautz
Malaria, a major global health challenge worldwide, is accompanied by a severe anemia secondary to hemolysis and increased erythrophagocytosis. Iron is an essential functional component of erythrocyte hemoglobin and its availability is controlled by the liver-derived hormone hepcidin. We examined the regulation of hepcidin during malarial infection in mice using the rodent parasite Plasmodium berghei K173. Mice infected with Plasmodium berghei K173 develop a severe anemia and die after 18 to 22 days without cerebral malaria...
January 2017: Haematologica
https://www.readbyqxmd.com/read/27579474/reduced-hsp70-and-glutamine-in-pediatric-severe-malaria-anemia-role-of-hemozoin-in-suppressing-hsp70-and-nf-%C3%AE%C2%BAb-activation
#20
Prakasha Kempaiah, Karol Dokladny, Zachary Karim, Evans Raballah, John M Ong'echa, Pope L Moseley, Douglas J Perkins
Severe malarial anemia [SMA, hemoglobin (Hb) <5.0 g/dL] is a leading cause of global morbidity and mortality among children residing in Plasmodium falciparum transmission regions. Exploration of molecular pathways through global gene expression profiling revealed that SMA was characterized by decreased HSPA1A, a heat shock protein (Hsp) 70 coding gene. Hsp70 is a ubiquitous chaperone that regulates Nuclear Factor-kappa B (NF-κB) signaling and production of pro-inflammatory cytokines known to be important in malaria pathogenesis (e...
August 30, 2016: Molecular Medicine
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