Results 41 to 50 of about 10,222 (298)

Genotyping of human lice suggests multiple emergencies of body lice from local head louse populations. [PDF]

PLoS Neglected Tropical Diseases, 2010
BACKGROUND: Genetic analyses of human lice have shown that the current taxonomic classification of head lice (Pediculus humanus capitis) and body lice (Pediculus humanus humanus) does not reflect their phylogenetic organization.
Wenjun Li, Gabriel Ortiz, Pierre-Edouard Fournier, Gregory Gimenez, David L Reed, Barry Pittendrigh, Didier Raoult   +6 more
doaj   +1 more source

Thermostable neutral metalloprotease from Geobacillus sp. EA1 does not share thermolysin's preference for substrates with leucine at the P1′ position

FEBS Letters, EarlyView.
Knowing how proteases recognise preferred substrates facilitates matching proteases to applications. The S1′ pocket of protease EA1 directs cleavage to the N‐terminal side of hydrophobic residues, particularly leucine. The S1′ pocket of thermolysin differs from EA's at only one position (leucine in place of phenylalanine), which decreases cleavage ...
Grant R. Broomfield, Torsten Kleffmann, David J. Saul, Sigurd M. Wilbanks   +3 more
wiley   +1 more source

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

FEBS Letters, EarlyView.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

Contributions to our knowledge on avian louse flies (Hippoboscidae: Ornithomyinae) with the first European record of the African species Ornithoctona laticornis

Parasites & Vectors
Background Louse flies (Diptera, Hippoboscidae) are important blood-sucking parasites of birds and mammals with a worldwide distribution. The aim of our study was to collect louse flies from birds across multiple sites in Hungary and evaluate the effects
Gergő Keve, Tibor Csörgő, Dávid Kováts, Anikó Benke, Attila Tibor Bende, Hunor Ágoston, Attila Mórocz, Ákos Németh, Enikő Anna Tamás, Attila Huber, József Gyurácz, Gábor Keve, Jenő Kontschán, Anna Németh, Sándor Hornok   +14 more
doaj   +1 more source

Disentangling the key drivers of salmon louse Lepeophtheirus salmonis fecundity using multiyear field samples

Aquaculture Environment Interactions, 2023
Planktonic salmon louse Lepeophtheirus salmonis salmonis larvae produced at salmon farms spread to and infect both wild and farmed salmonids. Understanding and forecasting the production and distribution of these larval stages from farms is critical to ...
C Thompson, S Bui, S Dalvin, R Skern-Mauritzen   +3 more
doaj   +1 more source

The nicotinamide hypothesis revisited—plant defense signaling integrating PARP, nicotinamide, nicotinic acid, epigenetics, and glutathione

FEBS Letters, EarlyView.
Nicotinamide (NIC) and nicotinic acid (NIA) are proposed as stress signaling compounds in plants. Oxidative stress may lead to single strand breaks (SSB) in DNA, which activate poly(ADP‐ribose) polymerase (PARP). NIC and NIA are then formed from NAD. NIC and NIA can promote epigenetic changes leading to the expression of defense genes specific for the ...
Torkel Berglund, Anna B. Ohlsson
wiley   +1 more source

C9orf72 ALS‐causing mutations lead to mislocalization and aggregation of nucleoporin Nup107 into stress granules

FEBS Letters, EarlyView.
Mutations in the C9orf72 gene represent the most common genetic cause of amyotrophic lateral sclerosis (ALS), a fatal neurodegenerative disease. Using patient‐derived neurons and C. elegans models, we find that the nucleoporin Nup107 is dysregulated in C9orf72‐associated ALS. Conversely, reducing Nup107 levels mitigates disease‐related changes.
Saygın Bilican, Yara Nabawi, William Hongyu Zhang, Dunja Petrovic, Markus Wehrmann, Sara Muñoz‐García, Seda Koyuncu, David Vilchez   +7 more
wiley   +1 more source

THE PHORESY OF THE LOUSE MALLOPHAGA ON THE POPULATION OF THE LOUSE-FLY HIPPOBOSCIDAE

Российский паразитологический журнал, 2016
Objective of research: To study the role of phoresy of the louse Mallophaga on the population of the louse-fly Hippoboscidae.Material and methods: In 1997–2015 more than 10000 birds were caught; from them about 2000 louse-flies Hippoboscidae were ...
A. V. Matyuhin
doaj  

The First Case of Menacanthus pallidulus (Neumann, 1912) (Phthiraptera: Amblycera: Menoponidae) on A Chicken (Gallus gallus domesticus Linnaeus, 1758) in Türkiye

Türkiye Parazitoloji Dergisi
This case report was prepared to provide information about Menacanthus pallidulus (Neumann, 1912), which was detected for the first time on a domestic chicken in Hatay province of Türkiye.
Fatma Nuray Şimşek, İpek Erdem, Aykut Zerek, Bilal Dik, Mehmet Yaman   +4 more
doaj   +1 more source

Roles of three putative salmon louse (Lepeophtheirus salmonis) prostaglandin E2 synthases in physiology and host–parasite interactions

Parasites & Vectors, 2021
Background The salmon louse (Lepeophtheirus salmonis) is a parasite of salmonid fish. Atlantic salmon (Salmo salar) exhibit only a limited and ineffective immune response when infested with this parasite.
Sussie Dalvin, Christiane Eichner, Michael Dondrup, Aina-Cathrine Øvergård   +3 more
doaj   +1 more source