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Malaria review

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https://www.readbyqxmd.com/read/28202065/alternative-transmission-routes-in-the-malaria-elimination-era-an-overview-of-transfusion-transmitted-malaria-in-the-americas
#1
Regina M Alho, Kim Vinícius Amaral Machado, Fernando F A Val, Nelson A Fraiji, Marcia A A Alexandre, Gisely C Melo, Judith Recht, André M Siqueira, Wuelton M Monteiro, Marcus V G Lacerda
BACKGROUND: Transfusion-transmitted (TT) malaria is an alternative infection route that has gained little attention from authorities, despite representing a life-threatening condition. There has been no systematic review of this health problem in American countries. The aim of this study was to describe the clinical and epidemiological characteristics of TT malaria in the Americas and identify factors associated with lethality based on the studies published in the literature. METHODS: Potentially relevant papers in all languages were retrieved from MEDLINE and LILACS...
February 15, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28199348/presentation-management-and-outcomes-of-sepsis-in-adults-and-children-admitted-to-a-rural-ugandan-hospital-a-prospective-observational-cohort-study
#2
Kristina E Rudd, Leonard K Tutaryebwa, T Eoin West
OBJECTIVES: Limited data are available on sepsis in low-resource settings, particularly outside of urban referral centers. We conducted a prospective observational single-center cohort study in May 2013 to assess the presentation, management and outcomes of adult and pediatric patients admitted with sepsis to a community hospital in rural Uganda. METHODS: We consecutively screened all patients admitted to medical wards who met sepsis criteria. We evaluated eligible patients within 24 hours of presentation and 24-48 hours after admission, and followed them until hospital discharge...
2017: PloS One
https://www.readbyqxmd.com/read/28183824/global-cancer-in-women-cancer-control-priorities
#3
Farhad Islami, Lindsey A Torre, Jeffrey M Drope, Elizabeth M Ward, Ahmedin Jemal
The global burden of cancer in women has recently received much attention, but there are few comprehensive reviews of the burden and policy approaches to reduce it. This paper, second in series of two, summarizes the most important cancer control priorities with specific examples of proven interventions, with a particular focus on primary prevention in low- and middle-income countries (LMICs). There are a number of effective cancer control measures available to countries of all resource levels. Many of these measures are extremely cost-effective, especially in the case of tobacco control and vaccination...
February 9, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28179098/genome-wide-association-studies-of-drug-resistance-determinants
#4
REVIEW
Sarah K Volkman, Jonathan Herman, Amanda K Lukens, Daniel L Hartl
Population genetic strategies that leverage association, selection, and linkage have identified drug-resistant loci. However, challenges and limitations persist in identifying drug-resistance loci in malaria. In this review we discuss the genetic basis of drug resistance and the use of genome-wide association studies, complemented by selection and linkage studies, to identify and understand mechanisms of drug resistance and response. We also discuss the implications of nongenetic mechanisms of drug resistance recently reported in the literature, and present models of the interplay between nongenetic and genetic processes that contribute to the emergence of drug resistance...
October 27, 2016: Trends in Parasitology
https://www.readbyqxmd.com/read/28176636/discovery-of-species-selective-and-resistance-breaking-anticholinesterase-insecticides-for-the-malaria-mosquito
#5
Paul R Carlier, Jeffrey R Bloomquist, Max Totrov, Jianyong Li
Great reductions in malaria mortality have been accomplished in the last 15 years, in part due to the widespread roll-out of insecticide-treated bednets across sub-Saharan Africa. To date, these nets only employ pyrethroids, insecticides that that target the voltage-gated sodium ion channel of the malaria vector, Anopheles gambiae. Due to the growing emergence of An. gambiae strains that are resistant to pyrethroids, there is an urgent need to develop new public health insecticides that engage a different target and possess extremely low mammalian toxicity...
February 6, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28166440/malaria-treatment-using-novel-nano-based-drug-delivery-systems
#6
Uday Krishna Baruah, Kuppusamy Gowthamarajan, Ravisankar Vanka, Veera Venkata Satyanarayana Reddy Karri, Kousalya Selvaraj, Gifty M Jojo
We reside in an era of technological innovation and advancement despite which infectious diseases like malaria remain to be one of the greatest threats to the humans. Mortality rate caused by malaria disease is a huge concern in the 21(st) century. Multiple drug resistance and non-specific drug targeting of the most widely used drugs are the main reasons/drawbacks behind the failure in malarial therapy. Dose related toxicity because of high doses is also a major concern. Therefore, to overcome these problems nano based drug delivery systems are being developed to facilitate site specific or target based drug delivery and hence minimising the development of resistance progress and dose dependent toxicity issues...
February 6, 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/28164028/the-clinical-spectrum-of-severe-acute-malnutrition-in-children-in-cameroon-a-hospital-based-study-in-yaounde-cameroon
#7
Andreas Chiabi, Berthe Malangue, Seraphin Nguefack, Félicitée Nguefack Dongmo, Florence Fru, Virginie Takou, Fru Angwafo
BACKGROUND: Severe acute malnutrition (SAM) is a major health problem, and the cause of more than half of childhood deaths in children less than 5 years in developing countries. Globally, 20 million children under 5 years of age are severely malnourished according to the World Health Organization (WHO). In Cameroon, the prevalence of SAM remains high and estimated at 1.9% in 2011 and 1.3% in 2014. The aim of this study was to determine the epidemiology, clinical aspects and outcome of SAM at the Yaounde Gynaeco-Obstetric and Pediatric Hospital (YGOPH)...
January 2017: Translational pediatrics
https://www.readbyqxmd.com/read/28163164/anti-pd-1-pd-l1-therapy-for-infectious-diseases-learning-from-the-cancer-paradigm
#8
REVIEW
Martin Rao, Davide Valentini, Ernest Dodoo, Alimuddin Zumla, Markus Maeurer
OBJECTIVES: Immune checkpoint pathways regulate optimal host immune responses against transformed cells; induce immunological memory and limit tissue pathology. Conversely, aberrant immune checkpoint activity signifies poor prognosis in cancer and infectious diseases. Host-directed therapy (HDT) via immune checkpoint blockade has revolutionised cancer treatment with therapeutic implications for chronic infections, thus laying the foundation for this review. METHODS: We performed online literature searches via PubMed, PubMedCentral and Google using the keywords "immune checkpoint inhibition", "host-directed therapy", "T cell exhaustion", "cancer immunotherapy", "anti-PD-1 therapy", "anti-PD-L1 therapy", "chronic infections", "antigen-specific cells", "tuberculosis", "malaria", "viral infections", "human immunodeficiency virus", "hepatitis B virus", "hepatitis C virus", "cytomegalovirus" and "Epstein-Barr virus"...
February 2, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28159028/the-health-impact-of-the-2014-15-ebola-outbreak
#9
REVIEW
J W T Elston, C Cartwright, P Ndumbi, J Wright
OBJECTIVES: The 2014-15 outbreak in West Africa was the largest and deadliest Ebola outbreak recorded; however, there remains uncertainty over its wider health consequences. Our objective was to provide a comprehensive overview of the impact of the Ebola outbreak on population health in the three most affected countries: Sierra Leone, Liberia and Guinea. STUDY DESIGN: Narrative review. METHODS: A narrative overview of the peer-reviewed and grey literature related to the impact and consequences of the Ebola outbreak was conducted, synthesizing the findings of literature retrieved from a structured search of biomedical databases, the Web and references of reviewed articles...
February 2017: Public Health
https://www.readbyqxmd.com/read/28157136/global-health-of-babies-and-children
#10
Susan Gennaro, Caitlin OʼConnor, Megan Marx
PURPOSE: We provide an overview of the health of neonates, infants, and children around the world. Issues in maximizing neonatal health are examined using the Sustainable Development Goals developed by the United Nations as a framework. RECOMMENDATIONS: Interventions that can help optimize neonatal, infant, and child health in the future are reviewed, including increasing preventative healthcare (immunizations, malaria prevention, exclusive breastfeeding for the first 6 months of life), enhancing point-of-care interventions (including umbilical cord care, antenatal corticosteroids if preterm birth is anticipated, and antibiotic therapy), enhancing nutritional interventions (to decrease diarrheal diseases and decrease wasting, stunting, and underweight), and building systems capacityClinical Implications: In an increasingly global world where wars, climate change, civil unrest, and economic uncertainty all influence health, it is important that nurses understand global health problems common for neonates, infants, and children and current recommendations to enhance their health...
February 1, 2017: MCN. the American Journal of Maternal Child Nursing
https://www.readbyqxmd.com/read/28153780/tools-for-attenuation-of-gene-expression-in-malaria-parasites
#11
REVIEW
Philip J Shaw, Aiyada Aroonsri
An understanding of the biology of Plasmodium parasites, which are the causative agents of the disease malaria, requires study of gene function. Various reverse genetic tools have been described for determining gene function. These tools can be broadly grouped as trans- and cis-acting. Trans-acting tools control gene functions through synthetic nucleic acid probe molecules matching the sequence of the gene of interest. Once delivered to the parasite, the probe engages with the mRNA of the target gene and attenuates its function...
January 30, 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/28153038/priority-gaps-and-promising-areas-in-maternal-health-research-in-low-and-middle-income-countries-summary-findings-of-a-mapping-of-2292-publications-between-2000-and-2012
#12
EDITORIAL
Matthew F Chersich, Greg Martin
This commentary sums the findings of a series of papers on a study that mapped the global research agenda for maternal health. The mapping reviewed published interventional research across low- and middle-income countries (LMICs) from 2000 to 2012, specifically focusing on investigating the topics covered by this research, the methodologies applied, the funding landscape and trends in authorship attribution.The overarching aim underpinning the mapping activities was to evaluate whether research and funding align with causes of maternal mortality, and thereby highlight gaps in research priorities and governance...
February 2, 2017: Globalization and Health
https://www.readbyqxmd.com/read/28146099/pediatric%C3%A2-mortality%C3%A2-in%C3%A2-a%C3%A2-rural%C3%A2-tertiary%C3%A2-care%C3%A2-center-in%C3%A2-liberia
#13
Carmelle Tsai, Camila B Walters, John Sampson, Francis Kateh, Mary P Chang
Liberia is a low-income country in West Africa that has faced significant challenges, including a civil war and the recent Ebola epidemic. Little data exists on the more current post-war and pre-Ebola trends of child health in Liberia in the rural setting. This study is a retrospective chart review of pediatric mortality in 2013 at a rural tertiary care center in Liberia, 10 years post-war. From January 2013 to December 2013, there were 50 pediatric deaths, or 5.4% of the 920 total pediatric admissions. The most common cause of neonatal death was sepsis, and the most common cause of death under five years of age was malaria...
January 30, 2017: Children
https://www.readbyqxmd.com/read/28143518/submicroscopic-plasmodium-prevalence-in-relation-to-malaria-incidence-in-20-villages-in-western-cambodia
#14
Rupam Tripura, Thomas J Peto, Christianne C Veugen, Chea Nguon, Chan Davoeung, Nicola James, Mehul Dhorda, Richard J Maude, Jureeporn Duanguppama, Krittaya Patumrat, Mallika Imwong, Lorenz von Seidlein, Martin P Grobusch, Nicholas J White, Arjen M Dondorp
BACKGROUND: Cambodia has seen a marked reduction in the incidence of Plasmodium falciparum over the past decade without a corresponding decline in Plasmodium vivax incidence. It is unknown to what extent local transmission is sustained by a chain of clinical and sub-clinical infections or by continued re-introduction via migration. Using an ultrasensitive molecular technique, 20 villages in western Cambodia were surveyed to detect the low season prevalence of P. falciparum and P. vivax and local treatment records were reviewed...
January 31, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28137270/malaria-control-and-prevention-towards-elimination-data-from-an-eleven-year-surveillance-in-shandong-province-china
#15
Xiangli Kong, Xin Liu, Hong Tu, Yan Xu, Jianbing Niu, Yongbin Wang, Changlei Zhao, Jingxuan Kou, Jun Feng
BACKGROUND: Shandong Province experienced a declining malaria trend of local-acquired transmission, but the increasing imported malaria remains a challenge. Therefore, understanding the epidemiological characteristics of malaria and the control and elimination strategy and interventions is needed for better planning to achieve the overall elimination goal in Shandong Province. METHODS: A retrospective study was conducted and all individual cases from a web-based reporting system were reviewed and analysed to explore malaria-endemic characteristics in Shandong from 2005 to 2015...
January 31, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28137233/antimalarials-molecular-drug-targets-and-mechanism-of-action
#16
Angela O Achieng, Manmeet Rawat, Bernhards Ogutu, Bernard Guyah, John Michael Ong Echa, Douglas J Perkins, Prakasha Kempaiah
Despite a reduction in the global burden of malaria, the disease remains responsible for 214 million cases and 438,000 deaths annually with 88% of the mortality occurring in sub-Saharan Africa. Malaria control largely depends on effective chemotherapy. However, the historic and current emergence and spread of multi-drug resistant parasite strains provides significant challenges to malaria control and consequently, reduction of malaria-associated morbidity and mortality. Combating parasite drug resistance requires pharmacological compounds that target both known and novel metabolic pathways that are crucial for parasite survival...
January 30, 2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28122651/clinical-features-and-management-of-plasmodium-knowlesi-infections-in-humans
#17
Cyrus Daneshvar, Timothy William, Timothy M E Davis
Plasmodium knowlesi is a simian malaria of primarily the macaque species of South East Asia. While it was known that human infections could be induced during the years of malariotherapy, naturally occurring P. knowlesi human infections were thought to be rare. However, in 2004, knowlesi infections became recognized as an important infection amongst human populations in Sarawak, Malaysian Borneo. Since then, it has become recognized as a disease affecting people living and visiting endemic areas across South East Asia...
January 26, 2017: Parasitology
https://www.readbyqxmd.com/read/28120726/plasmodial-hsp40s-new-avenues-for-antimalarial-drug-discovery
#18
Michael O Daniyan, Gregory L Blatch
Malaria, an infectious disease caused by Plasmodium spp, is one of the world's most dangerous diseases, accounting for more than half a million deaths yearly. The long years of co-habitation between the parasite and its hosts (human and mosquito), is a testimony to the parasite's ability to escape the immune system and develop drug resistance mechanisms. Currently, an important search area for improved pharmacotherapy are molecular chaperones of the heat shock protein family, abundant in Plasmodium falciparum and contributing to its continuous survival and development...
January 24, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28115974/lippia-javanica-burm-f-spreng-traditional-and-commercial-uses-and-phytochemical-and-pharmacological-significance-in-the-african-and-indian-subcontinent
#19
REVIEW
Alfred Maroyi
Lippia javanica occurs naturally in central, eastern, and southern Africa and has also been recorded in the tropical Indian subcontinent. The potential of L. javanica as herbal or recreational tea and herbal medicine and its associated phytochemistry and biological properties are reviewed. The extensive literature survey revealed that L. javanica is used as herbal tea and has ethnomedicinal applications such as in colds, cough, fever, malaria, wounds, diarrhoea, chest pains, bronchitis, and asthma. Multiple classes of phytochemicals including volatile and nonvolatile secondary metabolites such as alkaloids, amino acids, flavonoids, iridoids, and triterpenes as well as several minerals have been identified from L...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28114942/health-worker-adherence-to-malaria-treatment-guidelines-at-outpatient-health-facilities-in-southern-malawi-following-implementation-of-universal-access-to-diagnostic-testing
#20
Ruth J Namuyinga, Dyson Mwandama, Dubulao Moyo, Austin Gumbo, Peter Troell, Miwako Kobayashi, Monica Shah, Andrew Bauleni, Jodi Vanden Eng, Alexander K Rowe, Don P Mathanga, Laura C Steinhardt
BACKGROUND: Appropriate diagnosis and treatment are essential for reducing malaria mortality. A cross-sectional outpatient health facility (HF) survey was conducted in southern Malawi from January to March 2015 to determine appropriate malaria testing and treatment practices four years after implementation of a policy requiring diagnostic confirmation before treatment. METHODS: Enrolled patients were interviewed, examined and had their health booklet reviewed. Health workers (HWs) were asked about training, supervision and access to the 2013 national malaria treatment guidelines...
January 23, 2017: Malaria Journal
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