(n.) A name given in the United States to various species of siluroid fishes; as, the yellow cat (Amiurus natalis); the bind cat (Gronias nigrilabrus); the mud cat (Pilodictic oilwaris), the stone cat (Noturus flavus); the sea cat (Arius felis), etc. This name is also sometimes applied to the wolf fish. See Bullhrad.
Example Sentences:
(1) Microsomal UDP-glucuronosyltransferases (UDPGTs) and cytosolic glutathione S-transferases (GSTs) were examined in bluegill (Lepomis macrochirus R.) and channel catfish (Ictalurus punctatus R.) liver.
(2) It appears that channel catfish B cell mIg capping, presumably a requisite for immune function, can be significantly affected by environmental temperatures; most likely such effects are attributable to changes in plasma membrane viscosities.
(3) In comparative assays, the CH50 titers of catfish sera were similar to the CH50 titers of human sera.
(4) The amino acid sequences of both forms of African catfish GnRH were determined using Edman degradation after digestion with pyroglutamyl aminopeptidase.
(5) We have observed in the catfish retina that cone horizontal cell perikarya and dendrites make conventional chemical synapses onto photoreceptor terminal telodendria and onto bipolar cell dendrites, while horizontal cell axon terminals make chemical synapses onto the perikarya and processes of amacrine cells.
(6) From these results we conclude that: adaptation in the catfish retina includes two components: a) a lateral shift of the voltage-intensity curve along the intensity axis, and b) changes in the time course of light-evoked response.
(7) In olfactory neurons isolated from the channel catfish, Ictalurus punctatus, stimulation with olfactory stimuli (amino acids) elicits an influx of calcium that leads to a rapid increase in intracellular calcium.
(8) ), an inhibitor of GSH biosynthesis, did not deplete hepatic GSH in channel catfish.
(9) Our objective was to identify VG in the channel catfish, Ictalurus punctatus.
(10) The endocrine pancreas of the bullhead catfish, Ictalurus nebulosus, and the channel catfish, I. punctatas was studied by light and electron microscopy.
(11) Anoxic incubation for varying periods of Isoparorchis hypselobagri from the swim bladder of the catfish Wallago attu, led to an accumulation of oxygen debt on the part of the parasite.
(12) This indicates that the neural representation of the external body surface of the channel catfish faces caudally in the FL.
(13) An estimate of the total mass of bone in the Channel catfish Ictalurus punctatus Rafinesque, was obtained by dissection.
(14) Taste receptors for L-alanine and L-arginine in the channel catfish, Ictalurus punctatus, are differentially reactive to N-ethylmaleimide (NEM) and p-chloromercuribenzenesulphonic acid (pCMBS).
(15) Blood cells from Baltic salmon, Salmo salar, three-spined stickleback, Gasterosteus aculeatus, eel pout, Zoarces viviparus, crucian carp, Carassius carassius, African catfish, Clarias gariepinus, and reedfish, Calamoichthys calabaricus, were incubated with tritiated 11 beta-hydroxyandrostenedione (OHA) or 11-ketoandrostenedione (OA).
(16) Catfish GH and PRL were identified by Western blotting with antisera against chum salmon GH and PRL.
(17) The cellular requirements for channel catfish MLR responses were assessed by using three functionally distinct leucocyte subpopulations isolated from the PBL.
(18) The Indian catfish, Heteropneusted fossilis, was chemically thyroidectomized with thiourea.
(19) Neither the concentrations of these three brain tissue substrates, nor L-GDH activity were significantly different between fish at the two locations even though the observed UIA concentrations were equivalent to concentrations which have been observed to increase glutamine concentration in brain tissue of catfish during exposures under laboratory conditions.
(20) Results from oral dose studies indicated that SDM is readily absorbed from the gastrointestinal tract in channel catfish and distributes rapidly to body tissues, primarily the muscle.
Dogfish
Definition:
(n.) A small shark, of many species, of the genera Mustelus, Scyllium, Spinax, etc.
(n.) The bowfin (Amia calva). See Bowfin.
(n.) The burbot of Lake Erie.
Example Sentences:
(1) In other dogfish, glomerular filtration rate, urine flow, and Na and K excretory rates were measured for 3 days following implantation of desoxycorticosterone (DOCA), adrenocorticotropin (ACTH), or spironolactone; a control group was given no drug.
(2) The results showed that dogfish lenses developed superficial opacities due to near-UV exposure.
(3) The N-terminal tridecapeptide sequence was identical with the proposed structure of dogfish alpha-melanocyte-stimulating hormone (alpha-MSH).
(4) The "apo" lactate dehydrogenase structure was solved by use of the known apo-M4 dogfish lactate dehydrogenase molecule as a starting model.
(5) In addition, the interrenal cells of the common dogfish are strikingly rich in microfilament-like inclusions.
(6) In contrast to dogfish sharks, stringrays with high spinal transections do not locomote.
(7) It is concluded that, despite a broader specificity, the activity spectrum of dogfish enzyme is, in many respects, similar to that of calf chymosin.
(8) Tissue from the digitiform rectal gland of the spiny dogfish, Squalus acanthias, was fixed briefly by formaldehyde perfusion and studied for the specificity and localization of p-nitrophenyl phosphatase (NPP'ase) activity.
(9) A melanocyte-stimulating hormone (MSH) has been isolated from extracts of the neurointermediate lobe of the pituitary of the dogfish Squalus acanthias by gel-filtration and ion-exchange chromatography.
(10) Initial-rate studies were made of the oxidation of L-glutamate by NAD+ and NADP+ catalysed by highly purified preparations of dogfish liver glutamate dehydrogenase.
(11) Aqueous humor dynamics were studied in the dogfish, Squalus acanthias, using isotopically labeled inulin, Na+, Cl-, and HCO-3.
(12) The spiracular sense organs of the little skate, Raja erinacea, and the smooth dogfish, Mustelus canis, respond to movements of the hyomandibula-cranial joint.
(13) The primary structure of glucagon isolated from the intestine of the common dogfish, Scyliorhinus canicula, was established as H S E G T F T S D Y S K Y M D N R R A K D F V Q W L M N T. The peptide shows four substitutions compared with human glucagon: Glu-3 for Gln, Met-14 for Leu, Asn-16 for Ser and Lys-20 for Gln.
(14) Glycogen debranching enzyme (4-alpha-glucanotransferase amylo-1,6-glucosidase, EC 2.4.1.25 + 3.2.1.33) was purified 140-fold from dogfish muscle in a rapid, high-yield procedure that takes advantage of a strong binding of the enzyme to glycogen, and its quantitative adsorption to concanavalin A-Sepharose only when the polysaccharide is present.
(15) The skin of the dogfish in an exchanger for oxygen supplying 10% of oxygen requirements of other organs of the body in these experimental conditions (t = 13 degrees C).
(16) In marine fish (herring, dogfish shark, hagfish) FAO activities were all less than 15% that of rats and undetectable in hagfish.
(17) The dogfish enzyme has a higher pH optimum (8.5) and a broader spectrum of activity above and below its optimum than a commercial porcine lipase preparation (optimum, 7.5).
(18) The physiological effects of dogfish GnRH included the release of not only gonadotropin but also growth hormone from goldfish pituitary fragments.
(19) In this experiment, testicular tissues from different dogfish corresponding to the zones of lobules with spermatogonia (A), spermatocytes (B), early spermatids (C) and late spermatids (D) were dissected out and pooled.
(20) The vascular capacitance and volume distensibility of the isolated dogfish gut and segments of dogfish arteries and veins were investigated.