Results 1 to 10 of about 30,644 (243)

Body Lice and Pubic Lice [PDF]

EDIS, 2007
This document provides an overview of body lice and pubic lice, detailing their biology, transmission, symptoms, and treatment. Body lice, which can transmit diseases like typhus, are less common in the U.S., while pubic lice are a significant nuisance.
C.W. Scherer, P.G. Koehler
doaj   +4 more sources

Space-Time Modelling of the Spread of Salmon Lice between and within Norwegian Marine Salmon Farms [PDF]

PLoS ONE, 2013
Parasitic salmon lice are potentially harmful to salmonid hosts and farm produced lice pose a threat to wild salmonids. To control salmon lice infections in Norwegian salmonid farming, numbers of lice are regularly counted and lice abundance is reported ...
Magne Aldrin
exaly   +2 more sources

Evidence That Head and Body Lice on Homeless Persons Have the Same Genotype [PDF]

PLoS ONE, 2012
Human head lice and body lice are morphologically and biologically similar but have distinct ecologies. They were shown to have almost the same basic genetic content (one gene is absent in head lice), but differentially express certain genes, presumably ...
Didier Raoult, Philippe Brouqui, Romain Rivet   +2 more
exaly   +2 more sources

Chitin Synthases Are Critical for Reproduction, Molting, and Digestion in the Salmon Louse (Lepeophtheirus salmonis)

Life, 2021
Chitin synthase (CHS) is a large transmembrane enzyme that polymerizes Uridine diphosphate N-acetylglucosamine into chitin. The genomes of insects often encode two chitin synthases, CHS1 and CHS2.
Hulda María Harðardóttir, Rune Male, Frank Nilsen, Sussie Dalvin   +3 more
doaj   +1 more source

A novel approach to co-expression network analysis identifies modules and genes relevant for moulting and development in the Atlantic salmon louse (Lepeophtheirus salmonis)

BMC Genomics, 2021
Background The salmon louse (Lepeophtheirus salmonis) is an obligate ectoparasitic copepod living on Atlantic salmon and other salmonids in the marine environment.
Zhaoran Zhou, Christiane Eichner, Frank Nilsen, Inge Jonassen, Michael Dondrup   +4 more
doaj   +1 more source

Two apolipoproteins in salmon louse (Lepeophtheirus salmonis), apolipoprotein 1 knock down reduces reproductive capacity

Biochemistry and Biophysics Reports, 2021
The salmon louse, Lepeophtheirus salmonis is an ectoparasite of salmonid fish in the Northern Hemisphere, causing large economical losses in the aquaculture industry and represent a threat to wild populations of salmonids.
Muhammad Tanveer Khan, Sussie Dalvin, Frank Nilsen, Rune Male   +3 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

Identification and characterization of two salmon louse heme peroxidases and their potential as vaccine antigens

iScience, 2023
Summary: Salmon louse, Lepeophtheirus salmonis, represents major challenge for salmon farming. Current treatments impose welfare issues and are costly, whereas prophylactic measures are unavailable.
Elisabeth Gislefoss, Amr Ahmed Abdelrahim Gamil, Aina-Cathrine Øvergård, Øystein Evensen   +3 more
doaj   +1 more source

Head Lice [PDF]

Deutsches Ärzteblatt international, 2016
Conflicting information about the proper treatment of head lice has given rise to uncertainty among patients and treating personnel. For example, the reported efficacy of permethrin fell from 97% in the 1990s to 30% in 2010.Review of the literature based on a selective search of PubMed.In Germany, outbreaks of head lice mainly occur among 5- to 13-year-
Laura, Meister, Falk, Ochsendorf
openaire   +2 more sources

Host gill attachment causes blood-feeding by the salmon louse (Lepeophtheirus salmonis) chalimus larvae and alters parasite development and transcriptome

Parasites & Vectors, 2020
Background Blood-feeding is a common strategy among parasitizing arthropods, including the ectoparasitic salmon louse (Lepeophtheirus salmonis), feeding off its salmon host’s skin and blood. Blood is rich in nutrients, among these iron and heme.
Erna Irene Heggland, Michael Dondrup, Frank Nilsen, Christiane Eichner   +3 more
doaj   +1 more source