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https://www.readbyqxmd.com/read/27896890/diterpenes-as-lead-molecules-against-neglected-tropical-diseases
#1
REVIEW
Marcus Vinícius Oliveira Barros de Alencar, João Marcelo de Castro E Sousa, Hercília Maria Lins Rolim, Maria das Graças Freire de Medeiros, Gilberto Santos Cerqueira, Fernanda Regina de Castro Almeida, Antônia Maria das Graças Lopes Citó, Paulo Michel Pinheiro Ferreira, José Arimatéia Dantas Lopes, Ana Amélia de Carvalho Melo-Cavalcante, Md Torequl Islam
Nowadays, neglected tropical diseases (NTDs) are reported to be present everywhere. Poor and developing areas in the world have received great attention to NTDs. Drug resistance, safety profile, and various challenges stimulate the search for alternative medications. Plant-based drugs are viewed with great interest, as they are believed to be devoid of side effects. Diterpenes, a family of essential oils, have showed attractive biological effects. A systematic review of the literature was carried out to summarize available evidences of diterpenes against NTDs...
November 29, 2016: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/27879463/a-tale-of-two-flaviviruses-a-seroepidemiological-study-of-dengue-virus-and-west-nile-virus-transmission-in-the-ouest-and-sud-est-departments-of-haiti
#2
Thomas A Weppelmann, Alexandra Burne, Michael E von Fricken, Maha A Elbadry, Madsen Beau De Rochars, Jacques Boncy, Bernard A Okech
Though plans to eliminate malaria from the island of Hispaniola have recently received much attention, arbovirus surveillance continues to be largely neglected in Haiti. To support surveillance efforts and encourage vector-control strategies, a cross-sectional study of dengue virus (DENV) and West Nile virus (WNV) transmission was conducted using standard seroepidemiological methods. Blood samples (N = 673) were collected from 278 males and 395 females from three locations in the Ouest and Sud-Est Departments of Haiti...
November 22, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27876974/mosquito-larvicidal-activity-of-cadmium-nanoparticles-synthesized-from-petal-extracts-of-marigold-tagetes-sp-and-rose-rosa-sp-flower
#3
Amita Hajra, Snehali Dutta, Naba Kumar Mondal
Mosquitoes are blood-thirsty insects and serve as the most important vectors for spreading most notorious diseases such as malaria, yellow fever, dengue fever, and filariasis. The extensive use of synthetic mosquito repellent has resulted in resistance in mosquitoes. Therefore, the development of a reliable, eco-friendly processes for the synthesis of nano dimensional materials is an utmost important aspect of nanotechnology. In the present study, authors report absolute green synthesis of cadmium nanoparticles using marigold and rose flower petal extract...
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27866627/green-synthesized-nanoparticles-in-the-fight-against-mosquito-borne-diseases-and-cancer-a-brief-review
#4
Giovanni Benelli
Nanobiomedicine and parasitology are facing a number of key challenges, which mostly deal with the paucity of effective preventive and curative tools against mosquito-borne diseases and cancer. In this scenario, the employ of botanical and invertebrate extracts as reducing, stabilizing and capping agents for the synthesis of nanoparticles is advantageous over chemical and physical methods, since it is one-pot, cheap, and does not require high pressure, energy, temperature, or the use of highly toxic chemicals...
December 2016: Enzyme and Microbial Technology
https://www.readbyqxmd.com/read/27866611/facile-fabrication-of-eco-friendly-nano-mosquitocides-biophysical-characterization-and-effectiveness-on-neglected-tropical-mosquito-vectors
#5
Marimuthu Govindarajan, S L Hoti, Giovanni Benelli
Mosquito (Diptera: Culicidae) vectors are solely responsible for transmitting important diseases such as malaria, dengue, chikungunya, Japanese encephalitis, lymphatic filariasis and Zika virus. Eco-friendly control tools of Culicidae vectors are a priority. In this study, we proposed a facile fabrication process of poly-disperse and stable silver nanoparticles (Ag NPs) using a cheap leaf extract of Ichnocarpus frutescens (Apocyanaceae). Bio-reduced Ag NPs were characterized by UV-vis spectrophotometry, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction analysis (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM)...
December 2016: Enzyme and Microbial Technology
https://www.readbyqxmd.com/read/27860197/crispr-cas9-the-ultimate-weapon-to-battle-infectious-diseases
#6
REVIEW
M Doerflinger, W Forsyth, G Ebert, M Pellegrini, M J Herold
Infectious diseases are a leading cause of death worldwide. Novel therapeutics are urgently required to treat multi-drug resistant organisms such as Mycobacterium tuberculosis (Mtb) and to mitigate morbidity and mortality caused by acute infections such as malaria and dengue fever virus as well as chronic infections such as human immunodeficiency virus -1 (HIV-1) and hepatitis B virus (HBV). The CRISPR/Cas9 system, which has revolutionized biomedical research, holds great promise for the identification and validation of novel drug targets...
November 16, 2016: Cellular Microbiology
https://www.readbyqxmd.com/read/27832715/green-synthesis-of-selenium-nanoparticles-conjugated-clausena-dentata-plant-leaf-extract-and-their-insecticidal-potential-against-mosquito-vectors
#7
P Sowndarya, G Ramkumar, M S Shivakumar
Mosquitoes are major vectors for the transmission of many diseases like chikungunya, malaria, dengue, zika, etc. worldwide. In the present study, selenium nanoparticles (SeNPs) were synthesized from Clausena dentata and were tested for their larvicidal efficacy against the fourth-instar larvae of Anopheles stephensi, Aedes Aegypti, and Culex quinquefasciatus. The synthesized nanoparticles were characterized using UV-Vis spectroscopy, Fourier Transform Infrared Radiation (FTIR) spectroscopy, EDaX, and SEM. The results recorded from UV-Vis spectroscopy show the peak absorption spectrum at 420 nm...
November 10, 2016: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/27821884/measuring-haitian-children-s-exposure-to-chikungunya-dengue-and-malaria
#8
Mathieu Jp Poirier, Delynn M Moss, Karla R Feeser, Thomas G Streit, Gwong-Jen J Chang, Matthew Whitney, Brandy J Russell, Barbara W Johnson, Alison J Basile, Christin H Goodman, Amanda K Barry, Patrick J Lammie
OBJECTIVE: To differentiate exposure to the newly introduced chikungunya virus from exposure to endemic dengue virus and other pathogens in Haiti. METHODS: We used a multiplex bead assay to detect immunoglobulin G (IgG) responses to a recombinant chikungunya virus antigen, two dengue virus-like particles and three recombinant Plasmodium falciparum antigens. Most (217) of the blood samples investigated were collected longitudinally, from each of 61 children, between 2011 and 2014 but another 127 were collected from a cross-sectional sample of children in 2014...
November 1, 2016: Bulletin of the World Health Organization
https://www.readbyqxmd.com/read/27821769/protein-aggregation-as-a-cellular-response-to-oxidative-stress-induced-by-heme-and-iron
#9
Luiz R C Vasconcellos, Fabianno F Dutra, Mariana S Siqueira, Heitor A Paula-Neto, Jennifer Dahan, Ellen Kiarely, Leticia A M Carneiro, Marcelo T Bozza, Leonardo H Travassos
Hemolytic diseases include a variety of conditions with diverse etiologies in which red blood cells are destroyed and large amounts of hemeproteins are released. Heme has been described as a potent proinflammatory molecule that is able to induce multiple innate immune responses, such as those triggered by TLR4 and the NLRP3 inflammasome, as well as necroptosis in macrophages. The mechanisms by which eukaryotic cells respond to the toxic effects induced by heme to maintain homeostasis are not fully understood, however...
November 22, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27816986/recommendations-for-the-management-of-severe-malaria-and-severe-dengue-in-resource-limited-settings
#10
Arjen M Dondorp, Mai Nguyen Thi Hoang, Mervyn Mer
No abstract text is available yet for this article.
November 5, 2016: Intensive Care Medicine
https://www.readbyqxmd.com/read/27801802/water-related-impacts-of-climate-change-on-agriculture-and-subsequently-on-public-health-a-review-for-generalists-with-particular-reference-to-pakistan
#11
REVIEW
Toqeer Ahmed, Miklas Scholz, Furat Al-Faraj, Wajeeha Niaz
Water-related impacts due to change in climatic conditions ranging from water scarcity to intense floods and storms are increasing in developing countries like Pakistan. Water quality and waterborne diseases like hepatitis, cholera, typhoid, malaria and dengue fever are increasing due to chaotic urbanization, industrialization, poor hygienic conditions, and inappropriate water management. The morbidity rate is high due to lack of health care facilities, especially in developing countries. Organizations linked to the Government of Pakistan (e...
October 27, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27779831/infectious-diseases-in-poland-in-2014
#12
Małgorzata Sadkowska-Todys, Andrzej Zieliński, Mirosław P Czarkowski
PURPOSE of the STUDY: The aim of the study is to assess epidemiological situation of infectious and parasitic diseases in Poland in 2014, and an indication of the potential health risks from communicable diseases occurring in other areas of the globe. MATERIAL AND METHODS: This paper is a summary of the analysis and evaluation of the results of epidemiological surveillance of infectious diseases in Poland in 2014, and those elements of European and global epidemiological background, which in this period had an impact on the epidemiological situation in Poland or constituted a threat...
2016: Przegla̧d Epidemiologiczny
https://www.readbyqxmd.com/read/27762109/a-comparative-study-of-concurrent-dengue-and-malaria-infection-with-their-monoinfection-in-a-teaching-hospital-in-mumbai
#13
Arundhati Barua, Niharika Gill
OBJECTIVE: This comparative cross sectional study was conducted in a teaching hospital in Mumbai during the monsoon of 2014.A significant number of dengue and malaria co-infection cases, along with dengue, malaria and other infective causes of acute febrile illnesses were noted. The objective of the present study was to understand the interplay of both infections. Since the first such reported case in 2005, studies and data on such cases are scarce, hence this study. AIM: To compare the clinical course, laboratory features, severity and outcome of coinfection with monoinfection of malaria and dengue...
August 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27759344/expanded-dengue
#14
REVIEW
D B Kadam, Sonali Salvi, Ajay Chandanwale
The World Health Organization (WHO) has coined the term expanded dengue to describe cases which do not fall into either dengue shock syndrome or dengue hemorrhagic fever. This has incorporated several atypical findings of dengue. Dengue virus has not been enlisted as a common etiological agent in several conditions like encephalitis, Guillain Barre syndrome. Moreover it is a great mimic of co-existing epidemics like Malaria, Chikungunya and Zika virus disease, which are also mosquito-borne diseases. The atypical manifestations noted in dengue can be mutisystemic and multifacetal...
July 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27757255/vector-control-response-in-a-post-flood-disaster-setting-honiara-solomon-islands-2014
#15
Matthew Shortus, Jennie Musto, Hugo Bugoro, Charles Butafa, Alison Sio, Cynthia Joshua
PROBLEM: The close quartering and exposed living conditions in evacuation centres and the potential increase in vector density after flooding in Solomon Islands resulted in an increased risk of exposure for the occupants to vectorborne diseases. CONTEXT: In April 2014, Solomon Islands experienced a flash flooding event that affected many areas and displaced a large number of people. In the capital, Honiara, nearly 10 000 people were housed in emergency evacuation centres at the peak of the post-flood emergency...
January 2016: Western Pacific Surveillance and Response Journal: WPSAR
https://www.readbyqxmd.com/read/27746778/natural-mosquito-pathogen-hybrid-igg4-antibodies-in-vector-borne-diseases-a-hypothesis
#16
Berlin Londono-Renteria, Jenny C Cardenas, Andrea Troupin, Tonya M Colpitts
Chronic exposure to antigens may favor the production of IgG4 antibodies over other antibody types. Recent studies have shown that up to a 30% of normal human IgG4 is bi-specific and is able to recognize two antigens of different nature. A requirement for this specificity is the presence of both eliciting antigens in the same time and at the same place where the immune response is induced. During transmission of most vector-borne diseases, the pathogen is delivered to the vertebrate host along with the arthropod saliva during blood feeding and previous studies have shown the existence of IgG4 antibodies against mosquito salivary allergens...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27737634/a-prospective-study-of-the-importance-of-enteric-fever-as-a-cause-of-non-malarial-febrile-illness-in-patients-admitted-to-chittagong-medical-college-hospital-bangladesh
#17
Rapeephan R Maude, Aniruddha Ghose, Rasheda Samad, Hanna K de Jong, Masako Fukushima, Lalith Wijedoru, Mahtab Uddin Hassan, Md Amir Hossain, Md Rezaul Karim, Abdullah Abu Sayeed, Stannie van den Ende, Sujat Pal, A S M Zahed, Wahid Rahman, Rifat Karnain, Rezina Islam, Dung Thi Ngoc Tran, Tuyen Thanh Ha, Anh Hong Pham, James I Campbell, H Rogier van Doorn, Richard J Maude, Tom van der Poll, W Joost Wiersinga, Nicholas P J Day, Stephen Baker, Arjen M Dondorp, Christopher M Parry, Md Abul Faiz
BACKGROUND: Fever is a common cause of hospital admission in Bangladesh but causative agents, other than malaria, are not routinely investigated. Enteric fever is thought to be common. METHODS: Adults and children admitted to Chittagong Medical College Hospital with a temperature of ≥38.0 °C were investigated using a blood smear for malaria, a blood culture, real-time PCR to detect Salmonella Typhi, S. Paratyphi A and other pathogens in blood and CSF and an NS1 antigen dengue ELISA...
October 13, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27734894/genomic-evidence-for-plant-parasitic-nematodes-as-the-earliest-wolbachia-hosts
#18
Amanda M V Brown, Sulochana K Wasala, Dana K Howe, Amy B Peetz, Inga A Zasada, Dee R Denver
Wolbachia, one of the most widespread endosymbionts, is a target for biological control of mosquito-borne diseases (malaria and dengue virus), and antibiotic elimination of infectious filarial nematodes. We sequenced and analyzed the genome of a new Wolbachia strain (wPpe) in the plant-parasitic nematode Pratylenchus penetrans. Phylogenomic analyses placed wPpe as the earliest diverging Wolbachia, suggesting two evolutionary invasions into nematodes. The next branches comprised strains in sap-feeding insects, suggesting Wolbachia may have first evolved as a nutritional mutualist...
October 13, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27733281/global-regional-and-national-life-expectancy-all-cause-mortality-and-cause-specific-mortality-for-249-causes-of-death-1980-2015-a-systematic-analysis-for-the-global-burden-of-disease-study-2015
#19
COMMENT
(no author information available yet)
BACKGROUND: Improving survival and extending the longevity of life for all populations requires timely, robust evidence on local mortality levels and trends. The Global Burden of Disease 2015 Study (GBD 2015) provides a comprehensive assessment of all-cause and cause-specific mortality for 249 causes in 195 countries and territories from 1980 to 2015. These results informed an in-depth investigation of observed and expected mortality patterns based on sociodemographic measures. METHODS: We estimated all-cause mortality by age, sex, geography, and year using an improved analytical approach originally developed for GBD 2013 and GBD 2010...
October 8, 2016: Lancet
https://www.readbyqxmd.com/read/27731577/concurrent-infection-with-scrub-typhus-dengue-and-malaria-in-an-immunocompetent-young-male
#20
Meenaxi Sharda, Shivraj Meena, Anil Soni, Harish Nigam, Anuraj Singh
No abstract text is available yet for this article.
March 2016: Journal of the Association of Physicians of India
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