keyword
MENU ▼
Read by QxMD icon Read
search

Malaria prophylaxis

keyword
https://www.readbyqxmd.com/read/29321371/assessing-drug-efficacy-against-plasmodium-falciparum-liver-stages-in-vivo
#1
Erika L Flannery, Lander Foquet, Vorada Chuenchob, Matthew Fishbaugher, Zachary Billman, Mary Jane Navarro, William Betz, Tayla M Olsen, Joshua Lee, Nelly Camargo, Thao Nguyen, Carola Schafer, Brandon K Sack, Elizabeth M Wilson, Jessica Saunders, John Bial, Brice Campo, Susan A Charman, Sean C Murphy, Margaret A Phillips, Stefan Hi Kappe, Sebastian A Mikolajczak
Malaria eradication necessitates new tools to fight the evolving and complex Plasmodium pathogens. These tools include prophylactic drugs that eliminate Plasmodium liver stages and consequently prevent clinical disease, decrease transmission, and reduce the propensity for resistance development. Currently, the identification of these drugs relies on in vitro P. falciparum liver stage assays or in vivo causal prophylaxis assays using rodent malaria parasites; there is no method to directly test in vivo liver stage activity of candidate antimalarials against the human malaria-causing parasite P...
January 11, 2018: JCI Insight
https://www.readbyqxmd.com/read/29317472/failure-of-systemic-oral-doxycycline-in-preventing-ocular-toxoplasmic-retinochoroiditis-in-french-military-personnel
#2
Sami Saad, M Delbarre, R Saad, M Berguiga, D Benisty, M Marechal, T Adam, F Froussart
This paper describes two cases of toxoplasmic chorioretinitis presenting in two French soldiers who had been receiving oral doxycycline for malaria prophylaxis. This is despite the proven effectiveness of oral doxycycline in treating Toxoplasma gondii, the most common cause of this infection. The lack of effectiveness of oral doxycycline in these two cases most likely reflected that the ocular concentration of 100 mg daily doxycycline is too low to treat or prevent Toxoplasmic retinochoroiditis (TC). Clinicians should therefore be aware that soldiers taking prophylactic oral doxycycline are still at risk of developing ocular TC with potentially sight-threatening consequences if not treated adequately...
January 8, 2018: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/29273442/pharmaceutical-interactions-between-antiretroviral-and-antimalarial-drugs-used-in-chemoprophylaxis
#3
REVIEW
Andreas Erich Zautner, Ottmar Herchenröder, Awatef El Moussi, Norbert Georg Schwarz, Dorothea Franziska Wiemer, Uwe Groß, Hagen Frickmann
Human immunodeficiency virus (HIV) is the causative agent of the Acquired Immunodeficiency Syndrome (AIDS). The pandemic is believed to have originated within the Northern Congo basin covering large parts of the Democratic Republic of Congo, the Republic of Congo, the Central African Republic, Cameroon and Gabon. Although over decades, HIV-1 has spread throughout the World leaving no country unaffected, sub-Saharan Africa remains the region with more than 80% of all infected individuals. The HIV-2 epidemic has largely remained restricted to West Africa along the Upper Guinean forests...
December 19, 2017: Acta Tropica
https://www.readbyqxmd.com/read/29259752/long-lasting-and-fast-acting-in-vivo-efficacious-antiplasmodial-azepanylcarbazole-amino-alcohol
#4
Nada Abla, Sridevi Bashyam, Susan A Charman, Béatrice Greco, Philip Hewitt, Maria Belén Jiménez-Díaz, Kasiram Katneni, Holger Kubas, Didier Picard, Yuvaraj Sambandan, Laura Sanz, Dennis Smith, Tai Wang, Paul Willis, Sergio Wittlin, Thomas Spangenberg
With ∼429,000 deaths in 2016, malaria remains a major infectious disease where the need to treat the fever symptoms, but also to provide relevant post-treatment prophylaxis, is of major importance. An azepanylcarbazole amino alcohol is disclosed with a long- and fast-acting in vivo antiplasmodial efficacy and meets numerous attributes of a desired post-treatment chemoprophylactic antimalarial agent. The synthesis, the parasitological characterization, and the animal pharmacokinetics and pharmacodynamics of this compound are presented along with a proposed target...
December 14, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29242073/abbreviated-atovaquone-proguanil-prophylaxis-regimens-in-travellers-after-leaving-malaria-endemic-areas-a-systematic-review
#5
Jelmer Savelkoel, Klaas Hendrik Binnendijk, Rene Spijker, Michèle van Vugt, Kathrine Tan, Thomas Hänscheid, Patricia Schlagenhauf, Martin Peter Grobusch
BACKGROUND: We evaluated existing data on the prophylactic efficacy of atovaquone-proguanil (AP) in order to determine whether prophylaxis in travellers can be discontinued on the day of return from a malaria-endemic area instead of seven days after return as per currently recommended post-travel schedule. METHODS: PubMed and Embase databases were searched to identify relevant studies. This PROSPERO-registered systematic review followed PRISMA guidelines. The search strategy included terms or synonyms relevant to AP combined with terms to identify articles relating to prophylactic use of AP and inhibitory and half-life properties of AP...
December 11, 2017: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/29228132/vivax-malaria-chemoprophylaxis-the-role-of-atovaquone-proguanil-compared-to-other-options
#6
Meltzer Eyal, Galia Rahav, Schwartz Eli
Background: Atovaquone-Proguanil is considered causal prophylaxis (inhibition of liver-stage schizonts) for Plasmodium falciparum, however, its causal prophylactic efficacy for P. vivax is not known. Travelers returning to non-endemic areas, provide a unique opportunity to study P. vivax prophylaxis. Methods: A retrospective observational study. For 11 years Israeli rafters who had traveled to the Omo River in Ethiopia, a highly malaria endemic area, were followed for at least one year after their return...
December 7, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29182717/doxycycline-in-the-management-of-sexually-transmitted-infections
#7
Hélène Peyriere, Alain Makinson, Hélène Marchandin, Jacques Reynes
Doxycycline is a second-generation tetracycline, available worldwide for half a century. It is an inexpensive broad-spectrum antimicrobial agent largely used in the management of several bacterial infections, particularly involving intracellular pathogens, as well as in the treatment of acne or for the prophylaxis of malaria. Physicochemical characteristics of doxycycline (liposolubility) allow a high diffusion in the tissues and organs. It has high bioavailability and a long elimination half-life allowing oral administration of one or two daily doses...
November 22, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29167197/rare-pfcsp-c-terminal-antibodies-induced-by-live-sporozoite-vaccination-are-ineffective-against-malaria-infection
#8
Stephen W Scally, Rajagopal Murugan, Alexandre Bosch, Gianna Triller, Giulia Costa, Benjamin Mordmüller, Peter G Kremsner, B Kim Lee Sim, Stephen L Hoffman, Elena A Levashina, Hedda Wardemann, Jean-Philippe Julien
Antibodies against the central repeat of the Plasmodium falciparum (Pf) circumsporozoite protein (CSP) inhibit parasite activity and correlate with protection from malaria. However, the humoral response to the PfCSP C terminus (C-PfCSP) is less well characterized. Here, we describe B cell responses to C-PfCSP from European donors who underwent immunization with live Pf sporozoites (PfSPZ Challenge) under chloroquine prophylaxis (PfSPZ-CVac), and were protected against controlled human malaria infection. Out of 215 PfCSP-reactive monoclonal antibodies, only two unique antibodies were specific for C-PfCSP, highlighting the rare occurrence of C-PfCSP-reactive B cells in PfSPZ-CVac-induced protective immunity...
November 22, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29150641/repurposing-of-the-anti-malaria-drug-chloroquine-for-zika-virus-treatment-and-prophylaxis
#9
Sergey A Shiryaev, Pinar Mesci, Antonella Pinto, Isabella Fernandes, Nicholas Sheets, Sujan Shresta, Chen Farhy, Chun-Teng Huang, Alex Y Strongin, Alysson R Muotri, Alexey V Terskikh
One of the major challenges of the current Zika virus (ZIKV) epidemic is to prevent congenital foetal abnormalities, including microcephaly, following ZIKV infection of pregnant women. Given the urgent need for ZIKV prophylaxis and treatment, repurposing of approved drugs appears to be a viable and immediate solution. We demonstrate that the common anti-malaria drug chloroquine (CQ) extends the lifespan of ZIKV-infected interferon signalling-deficient AG129 mice. However, the severity of ZIKV infection in these mice precludes the study of foetal (vertical) viral transmission...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29112671/travel-characteristics-and-pretravel-health-care-among-pregnant-or-breastfeeding-u-s-women-preparing-for-international-travel
#10
Stefan H F Hagmann, Sowmya R Rao, Regina C LaRocque, Stefanie Erskine, Emily S Jentes, Allison T Walker, Elizabeth D Barnett, Lin H Chen, Davidson H Hamer, Edward T Ryan
OBJECTIVE: To study characteristics and preventive interventions of adult pregnant and breastfeeding travelers seeking pretravel health care in the United States. METHODS: This cross-sectional study analyzed data (2009-2014) of pregnant and breastfeeding travelers seen at U.S. travel clinics participating in Global TravEpiNet. Nonpregnant, nonbreastfeeding adult female travelers of childbearing age were used for comparison. We evaluated the prescription of malaria chemoprophylaxis and antibiotics for this population as well as the administration of three travel-related vaccines: hepatitis A, typhoid, and yellow fever...
November 3, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29110709/the-prevalence-incidence-and-prevention-of-plasmodium-falciparum-infections-in-forest-rangers-in-bu-gia-map-national-park-binh-phuoc-province-vietnam-a-pilot-study
#11
Do Hung Son, Nguyen Thuy-Nhien, Lorenz von Seidlein, Truong Le Phuc-Nhi, Ngo Thi Phu, Nguyen Thi Kim Tuyen, Nguyen Huyen Tran, Nguyen Van Dung, Bui Van Quan, Nicholas P J Day, Arjen M Dondorp, Nicholas J White, Guy E Thwaites, Tran Tinh Hien
BACKGROUND: Prophylaxis for high-risk populations, such as forest workers, could be one component for malaria elimination in the Greater Mekong Sub-region. A study was conducted to assess the malaria incidence in forest rangers and the feasibility of malaria prophylaxis for rangers sleeping in forest camps. METHODS: Forest rangers deployed in the Bu Gia Map National Park, Vietnam were invited to participate in the study. Plasmodium infections were cleared using presumptive treatment, irrespective of malaria status, with a 3-day course dihydroartemisinin/piperaquine (DP) and a 14-day course of primaquine...
November 6, 2017: Malaria Journal
https://www.readbyqxmd.com/read/29107173/deaths-and-parasuicides-associated-with-mefloquine-chemoprophylaxis-a-systematic-review
#12
REVIEW
Maya Tickell-Painter, Rachel Saunders, Nicola Maayan, Vittoria Lutje, Alberto Mateo-Urdiales, Paul Garner
BACKGROUND: Mefloquine is recommended in international health guidelines for preventing malaria in travellers. Reports of psychosis and suicide are often alluded to but are not clearly established. METHODS: We carried out a systematic review to identify and critically appraise any death or parasuicide associated with mefloquine prophylaxis. We developed a comprehensive search that included publications up to 11 July 2017. We included case studies but excluded newspaper reports...
October 25, 2017: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/29083100/mefloquine-for-preventing-malaria-during-travel-to-endemic-areas
#13
REVIEW
Maya Tickell-Painter, Nicola Maayan, Rachel Saunders, Cheryl Pace, David Sinclair
BACKGROUND: Mefloquine is one of four antimalarial agents commonly recommended for preventing malaria in travellers to malaria-endemic areas. Despite its high efficacy, there is controversy about its psychological side effects. OBJECTIVES: To summarize the efficacy and safety of mefloquine used as prophylaxis for malaria in travellers. SEARCH METHODS: We searched the Cochrane Infectious Diseases Group Specialized Register; the Cochrane Central Register of Controlled Trials (CENTRAL), published on the Cochrane Library; MEDLINE; Embase (OVID); TOXLINE (https://toxnet...
October 30, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29020345/plasmodium-malariae-in-israeli-travelers-a-nationwide-study
#14
Yarden Yavne, Eyal Leshem, Yael Paran, Eyal Nadir, Miriam Weinberger, Michal Stein, Neta Petersiel, Dafna Yahav, Tamar Grossman, Eli Schwartz
Background: Little is known about Plasmodium malariae, a relatively rare cause of malaria in returned travelers. Recently, polymerase chain reaction (PCR) use for malaria diagnosis has enhanced specificity of P. malariae detection. The study objective was to describe the unique aspects of P. malariae diagnosis and clinical course in travelers. Methods: Malaria is a reportable disease in Israel. All PCR-proven P. malariae monoinfections in Israeli travelers between January 2008 and January 2017 were retrieved from the Ministry of Health Reference Parasitology Laboratory...
October 16, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29017499/imported-malaria-in-spain-2009-2016-results-from-the-redivi-collaborative-network
#15
Francesca F Norman, Ana López-Polín, Fernando Salvador, Begoña Treviño, Eva Calabuig, Diego Torrús, Antonio Soriano-Arandes, Jose-Manuel Ruíz-Giardín, Begoña Monge-Maillo, Jose-Antonio Pérez-Molina, Ana Perez-Ayala, Magdalena García, Azucena Rodríguez, María Martínez-Serrano, Miren Zubero, Rogelio López-Vélez
BACKGROUND: Imported malaria is a frequent diagnosis in travellers and migrants. The objective of this study was to describe the epidemiological and clinical characteristics of patients diagnosed with imported malaria within a Spanish collaborative network registering imported diseases (+REDIVI). In addition, the possible association between malaria and type of case, gender, age or area of exposure was explored. METHODS: Cases of imported malaria were identified among all cases registered in the +REDIVI database during the period October 2009-October 2016...
October 10, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28934451/acute-malaria-infection-after-atovaquone-proguanil-prophylaxis
#16
COMMENT
Anna A Minta, Kathrine R Tan, Kimberly E Mace, Paul M Arguin
No abstract text is available yet for this article.
March 1, 2017: Journal of Travel Medicine
https://www.readbyqxmd.com/read/28931128/6-year-review-of-redivi-a-prospective-registry-of-imported-infectious-diseases-in-spain
#17
José A Pérez-Molina, Ana López-Polín, Begoña Treviño, Israel Molina, Josune Goikoetxea, Marta Díaz-Menéndez, Diego Torrús, Eva Calabuig, Agustín Benito, Rogelio López-Vélez
Background: Understanding and detecting imported diseases is a priority in the prevention and management of prevalent and emergent infectious diseases acquired abroad. The +Redivi network measures the burden of imported infections in Spain and is essential for closing the gap in travel medicine. Methods: Demographic characteristics, travel information, syndromes and confirmed travel-related diagnoses were registered in a standardised online database. Results: A total of 10 767 cases of imported infectious diseases were registered between October 2009 and December 2015...
September 1, 2017: Journal of Travel Medicine
https://www.readbyqxmd.com/read/28927276/alkoxycarbonate-ester-prodrugs-of-preclinical-drug-candidate-elq-300-for-prophylaxis-and-treatment-of-malaria
#18
Lisa Frueh, Yuexin Li, Michael W Mather, Qigui Li, Sovitj Pou, Aaron Nilsen, Rolf W Winter, Isaac P Forquer, April M Pershing, Lisa H Xie, Martin J Smilkstein, Diana Caridha, Dennis R Koop, Robert F Campbell, Richard J Sciotti, Mara Kreishman-Deitrick, Jane X Kelly, Brian Vesely, Akhil B Vaidya, Michael K Riscoe
ELQ-300 is a preclinical antimalarial drug candidate that is active against liver, blood, and transmission stages of Plasmodium falciparum. While ELQ-300 is highly effective when administered in a low multidose regimen, poor aqueous solubility and high crystallinity have hindered its clinical development. To overcome its challenging physiochemical properties, a number of bioreversible alkoxycarbonate ester prodrugs of ELQ-300 were synthesized. These bioreversible prodrugs are converted to ELQ-300 by host and parasite esterase action in the liver and bloodstream of the host...
October 13, 2017: ACS Infectious Diseases
https://www.readbyqxmd.com/read/28926409/effects-of-concurrent-exposure-to-antiretrovirals-and-cotrimoxazole-prophylaxis-among-hiv-exposed-uninfected-infants
#19
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 antiretroviral agents that have overlapping toxicity profiles. METHODS: We used data from the Breastfeeding, Antiretrovirals, and Nutrition study (2004-2010) to evaluate the association of CPT and antiretrovirals with hematologic measures (hemoglobin, neutrophil, and alanine aminotransferase levels) from 6 to 48 weeks of age in 2006 HEU infants in Lilongwe, Malawi...
November 28, 2017: AIDS
https://www.readbyqxmd.com/read/28895659/implementation-strategies-for-health-systems-in-low-income-countries-an-overview-of-systematic-reviews
#20
REVIEW
Tomas Pantoja, Newton Opiyo, Simon Lewin, Elizabeth Paulsen, Agustín Ciapponi, Charles S Wiysonge, Cristian A Herrera, Gabriel Rada, Blanca Peñaloza, Lilian Dudley, Marie-Pierre Gagnon, Sebastian Garcia Marti, Andrew D Oxman
BACKGROUND: A key function of health systems is implementing interventions to improve health, but coverage of essential health interventions remains low in low-income countries. Implementing interventions can be challenging, particularly if it entails complex changes in clinical routines; in collaborative patterns among different healthcare providers and disciplines; in the behaviour of providers, patients or other stakeholders; or in the organisation of care. Decision-makers may use a range of strategies to implement health interventions, and these choices should be based on evidence of the strategies' effectiveness...
September 12, 2017: Cochrane Database of Systematic Reviews
keyword
keyword
17255
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"