Genome-wide scans for the identification of Plasmodium vivax genes under positive selection

The current trend of Plasmodium vivax cases imported from Southeast Asia into China has sharply increased recently, especially from the China –Myanmar border (CMB) area. High recombination rates of P. vivax popula...
Source: Malaria Journal - Category: Infectious Diseases Authors: Source Type: research

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Platelets are anucleate cells produced by megakaryocytes. In recent years, a robust body of literature supports the evolving role of platelets as key sentinel and effector cells in infectious diseases, especially critical in bridging hemostatic, inflammatory, and immune continuums. Upon intravascular pathogen invasion, platelets can directly sense viral, parasitic, and bacterial infections through pattern recognition receptors and integrin receptors or pathogen: immunoglobulin complexes through Fc and complement receptors—although our understanding of these interactions remains incomplete. Constantly scanning for are...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
This study has given a new insight for the novel drug designing after conducting experiments on the in vivo models.Graphical abstract
Source: Materials Science and Engineering: C - Category: Materials Science Source Type: research
For the 16 years that Dr. Brian Westerberg, a Canadian surgeon, worked volunteer missions at the Mulago National Referral Hospital in Kampala, Uganda, scarcity was the norm. The patients usually exceeded the 1,500 allotted beds. Running water was once cut off when the debt-ridden hospital was unable to pay its bills. On some of his early trips, Westerberg even brought over drugs from Canada in order to treat patients. But as low-cost generics made in India and China became widely available through Uganda’s government and international aid agencies in the early 2000s, it seemed at first like the supply issue had been ...
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized generic drugs medication medicine Source Type: news
Publication date: Available online 13 May 2019Source: Journal of Pharmaceutical and Biomedical AnalysisAuthor(s): Rossana Canavesi, Riccardo Miggiano, Martina Stella, Ubaldina Galli, Franca Rossi, Menico Rizzi, Erika Del GrossoAbstractIn Anopheles gambiae, the most efficient vector of the malaria parasite Plasmodium falciparum, 3-hydroxykynurenine is endowed with a toxic potential. In adult mosquitoes, the excess of 3-hydroxykynurenine is removed by a specific transaminase (3-hydroxykynurenine transaminase, HKT) which converts the compound into the more stable xanthurenic acid. Interfering with 3-hydroxykynurenine metaboli...
Source: Journal of Pharmaceutical and Biomedical Analysis - Category: Drugs & Pharmacology Source Type: research
Glutaraldehyde is a well-known substance used in biomedical research to fix cells. Since haemolytic anaemias are often associated with red blood cell shape changes deviating from the biconcave disk shape, conservation of these shapes for imaging in general and 3D-imaging in particular, like confocal microscopy, scanning electron microscopy or scanning probe microscopy is a common desire. Along with the fixation comes an increase in the stiffness of the cells. In the context of red blood cells this increased rigidity is often used to mimic malaria infected red blood cells because they are also stiffer than healthy red blood...
Source: Frontiers in Physiology - Category: Physiology Source Type: research
ConclusionsStudies have demonstrated that antimalarial plants show promise for malaria treatment and prophylaxis.A. mexicana and N. pobeguinii extracts were supported by the best evidence. More work should be undertaken to better understand relevant approaches.
Source: European Journal of Integrative Medicine - Category: Complementary Medicine Source Type: research
This study was carried out in accordance with the recommendations of Institutional Review Board of the Federal University of Bahia, Brazil, with written informed consent from all subjects. All subjects gave written informed consent in accordance with the Declaration of Helsinki. The protocol was approved by the Institutional Review Board of the Federal University of Bahia, Brazil (approval number 693.111). Human Blood Samples and Preparation of Peripheral Blood Cells Peripheral blood mononuclear cells (PBMC) were separated from heparinized venous blood by Ficoll-Hypaque gradient centrifugation. Cells were then washed in ...
Source: Frontiers in cellular and infection microbiology - Category: Microbiology Source Type: research
Conclusions Toxoplasma gondii infection induces a strong innate and adaptive immune response. While the innate immunity is important for controlling the early stages of the infection (Yarovinsky, 2014), the adaptive immunity is critical for restricting the parasite replication during the later stages (Gazzinelli et al., 1992). Amongst the adaptive immune subsets, CD8 T cells are the primary effector cells while CD4 T cells play an essential helper role to maintain long-term immunity (Casciotti et al., 2002). Notwithstanding, a robust CD8 T cell immunity induced during acute phase of infection, does not result in the total...
Source: Frontiers in cellular and infection microbiology - Category: Microbiology Source Type: research
This study including human samples was carried out in accordance with the recommendations of the ICH/GCP guidelines, Comité de Etica para Investigación con Humanos, Centro Internacional de Vacunas (CECIV, Cali, Colombia), and the protocol approved by the CECIV. All subjects gave written informed consent in accordance with the Declaration of Helsinki. All animal protocols that include experimental animal procedures using mice and NHP were carried out in accordance with the US Animal Welfare Act and approved by the Emory University's Institutional Animal Care and Use Committee and followed accordingly....
Source: Frontiers in cellular and infection microbiology - Category: Microbiology Source Type: research
Conclusions and Perspectives It is interesting that watershed events, such as the loss of Neu5Gc from the glycocalyx of human cells have occurred numerous times in many mammalian and other vertebrate species. These cases of convergent evolution represent precious opportunities for increased understanding of evolutionary processes. In some respects, Neu5Gc is an ideal self-molecule as it is “private” to vertebrates and, based on current data, has yet to be successfully mimicked by microbes. Against the background of this benefit, the loss of Neu5Gc appears paradoxical and may implicate strong selective regimes,...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
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