Disease relevance of Ictaluridae

• The presence of carcinogenic and mutagenic chemical(s) in the effluent of a wastewater treatment plant was indicated by papillomas developing on caged black bullheads (Ictalurus melas), hepatic enzyme induction in exposed fish, and Ames test mutagenicity of organic extracts of the wastewater [1].
• These results indicate that high amounts of polyunsaturated fatty acids are not necessary in alpha-tocopherol-deficient diets to produce myopathy in channel catfish, and that the present National Research Council requirement for this vitamin for channel catfish may be low [2].
• Phenotypic and genotypic characterization of tetracycline- and oxytetracycline-resistant Aeromonas hydrophila from cultured channel catfish (Ictalurus punctatus) and their environments [3].
• Fish fed the sulfonamide showed higher mortality, lower weight gain, lower thrombocyte counts, higher hemocytoblast and neutrophil counts, and lower liver folate concentrations than did control fish (0 folic acid), indicating that significant intestinal bacterial synthesis of folate occurs in channel catfish [4].
• Expression of the IL-8 like gene was up-regulated 3-5-fold in channel catfish and blue catfish after infection with pathogenic bacteria Edwardsiella ictaluri [5].

High impact information on Ictaluridae

• The L-alanine taste receptors of the channel catfish Ictalurus punctatus provide a useful biochemical model for studying taste receptor mechanisms [6].
• Thioredoxin acts as a B cell growth factor in channel catfish [7].
• Characterization of Oct2 from the channel catfish: functional preference for a variant octamer motif [8].
• To understand transcriptional control of the IgH locus in a teleost fish and to gain insight into the evolution of the control elements, the enhancer activity in the IgH locus of the channel catfish, Ictalurus punctatus, was investigated [9].
• Both glucagon and the structurally similar glucagon-like peptide proteolytically derived from preproglucagon were purified from the endocrine pancreas of the channel catfish (Ictalurus punctata) [10].

Chemical compound and disease context of Ictaluridae

• Toxicity studies have shown that channel catfish are less sensitive to the acute toxic effects of aldicarb than are rainbow trout or bluegill [11].
• The binding of channel catfish neutrophils to the matrices used in the present study is suggestive that integrin mediated adhesion occurs during biological and pathological processes of teleosts [12].
• Effects of cortisol and stress on channel catfish (Ictalurus punctatus) pathogen susceptibility and lysozyme activity following exposure to Edwardsiella ictaluri [13].
• Cloning and expression of a putative glycoprotein gene of channel catfish virus using baculovirus expression system [14].
• 1. Disposition of phenol red was examined in channel catfish (Ictalurus punctatus) after oral or intravascular (i.v.) dosing at 10 mg/kg body weight [15].

Biological context of Ictaluridae

• Molecular characterization of three forms of putative membrane-bound progestin receptors and their tissue-distribution in channel catfish, Ictalurus punctatus [16].
• Molecular biology of channel catfish gonadotropin receptors: 1. Cloning of a functional luteinizing hormone receptor and preovulatory induction of gene expression [17].
• Molecular genetics of sex determination in channel catfish: studies on SRY, ZFY, Bkm, and human telomeric repeats [18].
• Toxicokinetics and disposition of inorganic mercury and cadmium in channel catfish after intravascular administration [19].
• Influence of beta-naphthoflavone and methoxychlor pretreatment on the biotransformation and estrogenic activity of methoxychlor in channel catfish (Ictalurus punctatus) [20].

Anatomical context of Ictaluridae

• These results suggest that CF-TRX may have an important role in the activation and proliferation of channel catfish B cells [7].
• Two peptides, pancreatic somatostatins I and II, larger and more acidic than synthetic tetradecapeptide somatostatin, have been purified from pancreatic islets of channel catfish (Ictalurus punctata) [21].
• Olfactory receptor neurons from the channel catfish (Ictalurus punctatus) express the G protein-coupled odorant receptors and metabotropic glutamate receptors [22].
• In order to study the pattern of innervation of taste buds and the surrounding epithelium, the carbocyanine dye diI was applied to the nerve stump in isolated, paraformaldehyde-fixed barbels obtained from channel catfish, Ictalurus punctatus [23].
• The ratio of biotin to indigestible dry matter in feces was lower than that in the diet for all fish, indicating little or no synthesis of biotin by the intestinal microflora in channel catfish [24].

Associations of Ictaluridae with chemical compounds

• Pancreatic poly(A) RNA isolated from the channel catfish (Ictalurus punctatus) was enriched for sequences corresponding to somatostatin mRNA on isokinetic sucrose gradients [25].
• The 22-residue somatostatin (SST-22) from channel catfish, purified by an improved method, is shown to be a glycopeptide [26].
• Collectively, these data demonstrate that CYP1A is involved in the activation of AA in channel catfish [27].
• Induction of hepatic CYP1A in channel catfish increases binding of 2-aminoanthracene to DNA in vitro and in vivo [27].
• These results suggest that the level of dietary chromic oxide had no significant effect on glucose utilization or chromium retention by channel catfish [28].

Gene context of Ictaluridae

• As part of a larger effort to assess the conservation of chemokine diversity in teleost fish, we report here the identification of three novel, constitutively expressed CXC chemokines from channel catfish (Ictalurus punctatus) [29].
• Gel filtration analyses of these supernatants indicated that there were at least two forms of IL-1-like activity, i.e. a high molecular weight form (70 kD) active on channel catfish, but not mouse, T cells and a low molecular weight form (approximately 15 kD) with activity for mouse, but not catfish, T cells [30].
• Nucleotide sequence comparisons of cytochrome b (Cytb) and cytochrome c oxidase subunit 1 (COI) demonstrated genetic separation of the genera Ictalurus, Pylodictis and Ameiurus consistent with the taxonomic classification within Ictaluridae [31].
• Among them, PLC from Ictalurus punctatus revealed the highest identity to T. cruzi PLC [32].
• Disparate regulation of insulin-like growth factor-binding proteins in a primitive, ictalurid, teleost (Ictalurus punctatus) [33].

Analytical, diagnostic and therapeutic context of Ictaluridae

• This study shows that a brown bullhead (Ameiurus nebulosus) fibroblast cell line (BB-2) responds to known apoptotic inducers (staurosporine, cycloheximide, and tumor necrosis factor alpha (TNF-alpha)), as characterized by terminal deoxynucleotidyl transferase (TdT)-mediated dUTP digoxigenin nick end-labelling (TUNEL) [34].
• Scanning electron microscopy of vascular corrosion replicas and light microscopy revealed a pair of highly vascularized tissues, the carotid labyrinths, in the dorsal head region of the channel catfish, Ictalurus punctatus, the black bullhead, I. melas, and the walking catfish, Clarias batrachus [35].
• Western blotting, using sera from naturally infected channel catfish, revealed the same proteins for pressure- and formalin-killed F columnaris [36].
• Four commercially available enzyme immunoassays were evaluated for the detection of sulfadimethoxine (SDM) residues in channel catfish muscle [37].
• This method combines primary hepatocyte cultures from the channel catfish (Ictalurus punctatus) with an enzyme-linked immunosorbant assay (ELISA) to detect and quantify the production of vitellogenin (VTG), a liver-derived, estrogen-induced lipoprotein [38].

References