The (Na+-K+)-dependant ATPase prepared from human erythrocyte ghosts has been purified with sodium deoxycholate in a high ionic medium. After the purification, 60% of the native activity bound to the membranes was recovered.
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Exp Parasitol
January 2025
Post-graduate Program in Studies in Natural Products and Synthetic Bioactive, Federal University of Paraíba, João Pessoa, PB, Brazil; Laboratory of Toxicological Tests, Federal University of Paraíba, João Pessoa, PB, Brazil; Post-graduate Program in Studies in Development and Technological Innovation in Medicines, Federal University of Paraíba, João Pessoa, PB, Brazil.
One of the main factors that have made it difficult to control malaria is the large number of parasites that are resistant to the usual antimalarial drugs. Therefore, the development of new drugs that are more effective and with low toxicity for humans is necessary. In this work, we evaluated the adduct 2-(3-hydroxy-1-methyl-2-oxoindolin-3-yl) acrylonitrile, also called CHISACN, as a potential antimalarial through in vitro studies, and evaluated its effects in silico and in vivo toxicology.
View Article and Find Full Text PDFPLoS One
January 2025
Tanga Research Centre, National Institute for Medical Research, Tanga, Tanzania.
Several interventional strategies have been implemented in malaria endemic areas where the burden is high, that include among others, intermittent preventive treatment (IPT), a tactic that blocks transmission and can reduce disease morbidity. However, the implementation IPT strategies raises a genuine concern, intervening the development of naturally acquired immunity to malaria which requires continuous contact with parasite antigens. This study investigated whether dihydroartemisinin-piperaquine (DP) or artesunate-amodiaquine (ASAQ) IPT in schoolchildren (IPTsc) impairs IgG reactivity to six malaria antigens.
View Article and Find Full Text PDFCureus
December 2024
Department of Dermatology, International University of Health and Welfare Narita Hospital, Narita, JPN.
A 53-year-old woman undergoing combination therapy with epidermal growth factor receptor (EGFR) and vascular endothelial growth factor receptor (VEGFR) inhibitors for advanced lung cancer with brain metastases developed pustules and punctate purpura on both lower extremities. Histopathological examination revealed neutrophilic infiltration around the hair follicles and erythrocyte extravasation in the perivascular regions near the hair roots, leading to a diagnosis of purpuric papulopustular eruptions. The rash improved with oral doxycycline (100 mg/day) and topical corticosteroids.
View Article and Find Full Text PDFCommun Biol
January 2025
Division of Immunology, Tulane National Primate Research Center, Tulane University, Covington, LA, USA.
The Bartonella genus of bacteria encompasses ubiquitous species, some of which are pathogenic in humans and animals. Bartonella henselae, the causative agent of Cat Scratch disease, is responsible for a large portion of human Bartonella infections. These bacteria can grow outside of cells, replicate in erythrocytes and invade endothelial and monocytic cells.
View Article and Find Full Text PDFAMB Express
January 2025
Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt.
Candida albicans is a commensal fungus that naturally inhabits the vagina. However, overgrowth of C. albicans can result in vulvovaginal candidiasis (VVC), one of the most prevalent fungal infections affecting women.
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