Results

76 - 100 of 127
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Rainbow trout, in groups of 3, were exposed to 109 cfu/ml Vibrio anguillarum in fresh or salt water, or were kept in non-infected fresh water. Gill filaments were removed from the fish and studied by light and electron microscopy. Eosoinophil granule cells were present throughout the tissue in assoc...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Adult rainbow trout (Oncorhynchus mykiss) were injected intraperitoneally with capsaicin, substance P, serotonin, or a control of saline vehicle or bovine serum albumin (0.5 microgram/g body weight). Fish were sacrificed 30 min and 1, 2, and 4 h post-injection, the gut was dissected out, and a small...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
In two variants of Loma salmonae that have specificity for rainbow trout Oncorhynchus mykiss (OA variant) and specificity to brook trout Salvelinus fontinalis (SV variant), the parasitophorous vacuole forms at the onset of sporogony. In the OA variant the merogonial stage is bound by a single plasma...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Chloramine-T is a widely used prophylactic and therapeutic agent in freshwater aquaculture (mainly against bacterial gill disease). The effects of repeated intermittent exposure of healthy rainbow trout (Oncorhynchus mykiss) fingerlings to sublethal concentrations of chloramine-T (0,5, 10, or 20 mg/...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The ontogeny of major histocompatibility class II antigens in small intestine enterocytes of postnatal C3H/He mice was investigated. Cryosections of duodenal, jejunal, and ileal segments from 7-, 14-, 16-, 20-, 21-, 23-, 25-, 27-, 28-day-old and 7-week-old mice were stained for the class II antigens...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The qualitative and quantitative expression of major histocompatibility class II antigens was investigated in the absorptive epithelium of the duodenum, jejunum, and ileum from mice of C3H/He (H-2k haplotype) and C57BL/6 (H-2b haplotype) strains by peroxidase-antiperoxidase labelling and image analy...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The effects of dexamethasone (dex) treatment on infections with the microsporidian parasite, Loma salmonae and the effects of dex on initiation of the adaptive immune response were investigated in rainbow trout, Oncorhynchus mykiss experimentally infected with the parasite. Dex treatment resulted in...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Infection by a microsporidian of the genus Loma was found in gills of cod Gadus morhua. Xenomas contained parasites in multiple stages of development. Some spores looked empty and had everted polar tubes, which were either straight or coiled. These polar tubes were scattered throughout the xenoma cy...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The sequence of host changes following the rupture of spore-laden xenomas of the microsporidian Loma salmonae during Microsporidial Gill Disease of Salmon was deduced from ultrastructural examination of the gills of naturally infected, moribund, chinook salmon from a commercial aquaculture site. The...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The presence of dendritic cells in fish is studied with immunohistochemistry using a commercially available antibody developed against Langerin/CD207 present in human Langerhans cells. Langerin/CD207, a protein known to be associated with the development of Birbeck granules in human and murine syste...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Eosinophilic granule cells (EGCs) are considered to be analogous to mammalian mast cells. In this study the short term ultrastructural responses of ECGs to extracellular products (ECPs) of Aeromonas salmonicida or Vibrio [Listonella] anguillarum were investigated. Bacterial ECP was prepared from a b...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Gills from Atlantic salmon with experimentally induced amoebic gill disease (Neoparamoeba spp.) were examined with transmission electron microscopy to assess pathology and host-cell responses. Amoebae were found either on the surface epithelium or with pseudopodia extending deeply into invaginations...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
SUMMARYSome members of the ABC-transporter superfamily, such as P-glycoprotein and the multidrug resistance associated protein, may confer resistance to the avermectin subclass of macrocyclic lactones. The aim of this study was to examine the presence of ABC transporters in both sea lice (Lepeophthe...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Enzyme cytochemistry was used to investigate possible lysosome involvement in capsaicin induced degranulation of the eosinophilic granule cell (EGC) of the rainbow trout intestine. Three adult rainbow trout (Oncorhynchus mykiss) were injected intraperitoneally with capsaicin in a saline vehicle (0.5...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Meconium aspiration syndrome is a major contributor to neonatal respiratory distress in infants and it has been sporadically recognized in neonatal animals. This investigation was designed to study the short and long term effects of meconium and amniotic fluid in the lungs of neonatal rats. Seven-da...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The main objective of this investigation was to examine the ultrastructural features of gills from rainbow trout experimentally infected with Loma salmonae to determine the morphological events that occur during the late stages of development of this parasite. Peripheral distribution of the mature p...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Meconium aspiration syndrome has been for many years an important cause of neonatal respiratory distress in newborn babies and sporadically reported in animals. This investigation was designed to study the ultrastructural and morphometric changes in the lungs of neonatal rats following the intratrac...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The purpose of this study was to determine adequate dose ranges and to test for side effects associated with chronic treatment of fish with indomethacin. Rainbow trout Oncorhynchus mykiss were orally treated with indomethacin at various nominal concentrations: a negative control (0 mg/kg) and...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The temporal and spatial expression patterns of lamprin, the principle structural protein in lamprey cartilages, were examined by in situ hybridization during chondrogenesis of trabecular cartilage in day 17-33 post-fertilization prolarval lampreys. Lamprin mRNA transcripts were first detected durin...