Results 41 to 50 of about 13,658 (180)

Innate Immune B Cell Activation by Leishmania donovani Exacerbates Disease and Mediates Hypergammaglobulinemia

open access: yesCell Reports, 2016
Participation of B cells in the immune response by various antibody-independent mechanisms has recently been uncovered. B cells producing cytokines have been described for several infections and appear to regulate the adaptive immune response.
Sasha Silva-Barrios   +6 more
doaj   +1 more source

Asymptomatic Leishmania donovani infection and associated factors among blood donors attending at Metema district Blood Bank, Northwest Ethiopia: a cross- sectional study

open access: yesArchives of Public Health, 2023
Background Ethiopia is one of the top 10 countries in the world where 90% visceral leishmaniasis cases are reported. Metema-Humera lowlands are the most important foci in Ethiopia. Blood transfusion in visceral leishmaniasis endemic foci in Ethiopia does
Iyasu Melkie   +3 more
doaj   +1 more source

Synthesis, Electrochemistry, In Vitro Antiprotozoal Efficacy and Mechanistic Study of Novel ‘Ferrantoin’ and Related Derivatives

open access: yesApplied Organometallic Chemistry, Volume 40, Issue 7, July 2026.
1,2‐Disubstituted ferrocene analogues bearing hydantoin or rhodanine synthons were synthesised and assessed for antitrypanosomatid activity. An antileishmanial early lead, analogue 23, acting through ROS generation and hence oxidative stress, was uncovered.
Maryna Saayman   +7 more
wiley   +1 more source

CRISPR-Cas9-Mediated Genome Editing in Leishmania donovani

open access: yesmBio, 2015
The prokaryotic CRISPR (clustered regularly interspaced short palindromic repeat)-Cas9, an RNA-guided endonuclease, has been shown to mediate efficient genome editing in a wide variety of organisms.
Wen-Wei Zhang, Greg Matlashewski
doaj   +1 more source

Thymus and Leishmania at the Crossroads: Autoimmunity and Cancer

open access: yesImmunology, Volume 178, Issue 3, Page 377-386, July 2026.
Conceptual ‘Crossroads Model’ linking Leishmania, thymic infection and immune dysregulation: an integrative model is proposed in which Leishmania infection disrupts thymic architecture and stromal–thymocyte interactions. These alterations converge to promote defective tolerance, increased autoimmune risk and a microenvironment permissive to malignant ...
Alef Batista Bezerra Barros   +5 more
wiley   +1 more source

Adenine and adenosine salvage in Leishmania donovani [PDF]

open access: yesMolecular and Biochemical Parasitology, 2013
6-aminopurine metabolism in Leishmania is unique among trypanosomatid pathogens since this genus expresses two distinct routes for adenine salvage: adenine phosphoribosyltransferase (APRT) and adenine deaminase (AAH). To evaluate the relative contributions of APRT and AAH, adenine salvage was evaluated in Δaprt, Δaah, and Δaprt/Δaah null mutants of L ...
Jan M, Boitz, Buddy, Ullman
openaire   +2 more sources

Glyoxalase I gene deletion mutants of Leishmania donovani exhibit reduced methylglyoxal detoxification. [PDF]

open access: yesPLoS ONE, 2009
BACKGROUND:Glyoxalase I is a metalloenzyme of the glyoxalase pathway that plays a central role in eliminating the toxic metabolite methyglyoxal. The protozoan parasite Leishmania donovani possesses a unique trypanothione dependent glyoxalase system ...
Swati C Chauhan, Rentala Madhubala
doaj   +1 more source

Identification of Distinct Interacting Proteins of Giardia lamblia Centrins Using Yeast Two‐Hybrid Assays

open access: yesJournal of Eukaryotic Microbiology, Volume 73, Issue 4, July/August 2026.
ABSTRACT Giardia lamblia, a protozoan parasite that causes diarrhea in humans, contains two centrins implicated in cellular morphology and cell division. To identify proteins interacting with each G. lamblia centrin (GlCent), we performed a yeast two‐hybrid assay.
Mee Young Shin   +2 more
wiley   +1 more source

Carbon Dioxide Assimilation by Leishmania donovani [PDF]

open access: yesNature, 1960
WHILE studying the glucose metabolism of Leishmania donovani, the protozoan organism causing visceral leishmaniasis, it has been found that cell suspensions of this organism in a saline-bicarbonate buffer containing glucose can assimilate, a measurable amount of carbon dioxide along with the formation of different acidic end products1.
A N, CHATTERJEE, J J, GHOSH
openaire   +2 more sources

Pancytopenia With Hypocellular Bone Marrow Revealing Extrahepatic Portal Venous Obstruction and Cavernous Transformation in a Child: A Case Report of a Diagnostic Challenge

open access: yesClinical Case Reports, Volume 14, Issue 6, June 2026.
ABSTRACT Extrahepatic portal venous obstruction (EHPVO) is a leading cause of prehepatic portal hypertension in children, particularly in developing countries. While upper gastrointestinal bleeding is the most common presentation, EHPVO may rarely manifest predominantly with hematological abnormalities due to hypersplenism, posing a diagnostic ...
Swekchha Adhikari   +6 more
wiley   +1 more source

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