(a.) Of or pertaining to the Amphibia; as, amphibian reptiles.
(n.) One of the Amphibia.
Example Sentences:
(1) Measurements of acetylcholine-induced single-channel conductance and null potentials at the amphibian motor end-plate in solutions containing Na, K, Li and Cs ions (Gage & Van Helden, 1979; J. Physiol.
(2) Representative specimens from two classes of Vertebrata Sub-Phyllum, Bufo paracnemis (amphibian) and Gallus domesticus (avian) were made anemic by phenylhydrazine treatment.
(3) The auditory function of the sacculus in amphibians is confirmed and special attention is paid to functional heterogeneity of the receptor epithelium in the saccular maculae.
(4) Both tympanic and nontympanic pathways of sound reception are utilized by anuran amphibians.
(5) Recent interest has focused on endogenous cardiac glycosides, some progesterone derivatives (pregnanes) and the amphibian bufodienolides.
(6) The neotenic urodelan amphibian species model represents actually the only model in which the coexistence of larval (or neonatal) and adult heavy chains is maintained throughout life in adults.
(7) In terms of their chemical structures as well as the potency and efficacy with which they alter acinar cell function, the amphibian peptides plus CCK-OP can be grouped into three pairs: caerulein with CCK-OP, bombesin with litorin, and physalaemin with eledoisin.
(8) The same membrane specialization was noted in a previous study of amphibian myoneural junctions, and it was proposed then that the granular elements represent ACh receptor molecules.
(9) In relation to the human class I enzyme, the amphibian protein has residue identities exactly halfway (68%) between those for the corresponding avian enzyme (74%) and the human class III enzyme (62%), suggesting an origin of the alcohol dehydrogenase classes very early in or close to the evolution of the vertebrate line.
(10) The four hosts (Mollusc -- Crustacean -- Odonat -- Amphibian) are obligatory in the life cycle for it is impossible to infect the Insects directly with the cecariae or the frog (tadpoles as well as adults) with the mesocercariae.
(11) Sections of Rat and Amphibian adrenocortical tissue fixed in a mixture of 1% formaldehyde and 0.25% glutaraldehyde, are incubated in a medium containing namely a 3 beta-hydroxysteroid (substrate), NAD, potassium ferricyanide (hydrogen acceptor) and copper sulfate.
(12) The results confirm observations that different amphibian species react in different ways to activating chemicals.
(13) The role of mitochondria has not yet been conclusively established, but is suggested by several lines of evidence, particularly in amphibian hearts.
(14) The subcellular responses of amphibian adrenocorticotropic (ACTH) and thyrotropic (TSH) pituitary cells to the in vivo administration of ovine corticotropin-releasing factor was investigated.
(15) Using material on the evolution of the fundus of the oral cavity in amphibians, four principles were established for the origin of heterochronia: efficiency of ontogenesis; adaptability of an earlier (than in ancestors) beginning for functioning of traits; loss of the adaptive significance of a trait at a previous stage, but a preservation of it at a subsequent stage; and, a prolongation of the adaptive significance of a trait at later stages.
(16) While it is believed that the effect of ethanol on human renal water homeostasis is indirect, amphibian membrane experiments have demonstrated direct effects albeit at high concentrations.
(17) In the tetraploid amphibian Odontophrynus americanus the selective precipitation of vitellogenin by Mg2+ from plasma treated with ethylene diaminetetraacetic acid (EDTA) or ethylene bis (oxyethylenenitrilo)-tetraacetic acid (EGTA) is a pH-dependent phenomenon.
(18) The early amphibian embryo provides an attractive model for the in vivo analysis of cell interactions with extracellular matrix components.
(19) In this manner, the first terminal structures of three non-mammalian alcohol dehydrogenases were determined, demonstrating the presence of N-terminal acetylation in these piscine, amphibian, and avian enzymes.
(20) There is clearly an MHC in amphibians and birds with many characteristics like the MHC of mammals (a single genetic region encoding polymorphic class I and class II molecules) and evidence for polymorphic class I and class II molecules in reptiles.
Caudate
Definition:
(a.) Alt. of Caudated
Example Sentences:
(1) It is shown that in animals of the same line but differing by the behaviour in the open field, brain formations such as the sensorimotor cortex, caudate nucleus and n. accumbens have their own biochemical properties of the studied characteristics.
(2) Hence, in the intact caudate-putamen dopamine appears to suppress expression of these two neuropeptide genes leading to an activation of both NPY and SOM mRNA expression in many non- or low-expressing neurons when the level of dopamine is decreased.
(3) Senescent (26-28 months) Fischer 344 rats were shown to have a lower density of D2 sites (-36%) without any change in affinity in membranes prepared from homogenized caudate-putamen (CPU), as compared to young adult (5-6 months) rats.
(4) Overflow curves in both regions could be described with similar kinetic parameters except for the Vmax, which in the nucleus accumbens was only 60% of that measured in the caudate-putamen.
(5) The concentrations of metorphamide in the bovine caudate nucleus, the hypothalamus, the spinal cord, and the neurointermediate pituitary were determined by radioimmunoassay and chromatography separation procedures.
(6) We describe a right-handed native American who developed a foreign accent following damage to the left premotor region and white matter anterior to the head of the left caudate nucleus.
(7) The effect of sulfated cholecystokinin octapeptide (CCK-8S) on the generation of slow wave depolarisation in the rat caudate-putamen (CPu) was studied using in vivo voltammetry.
(8) Our results suggest that caudate TH levels plateau soon after birth and tend to remain relatively stable during aging, since no changes in either the relative number of TH-containing nerve terminals or the concentration of TH protein were found in subjects 15-63 years of age.
(9) Radioligand binding studies were conducted using [3H]CFT and [3H]GBR 12935 to label elements of the dopamine uptake system in caudate-putamen membranes of cynomolgus monkeys.
(10) In the caudate, terminal fields were restricted to a central longitudinal core while those from area 6DC were more widely distributed.
(11) The positivity of amyloid deposits in AD was 100% in the cerebral cortex, hippocampus, amygdala, thalamus, caudate nucleus, claustrum, hypothalamus, nucleus basalis of Meynert, and cerebellar cortex.
(12) The brain dialysis method was very useful for measuring the monoamine metabolite levels of the caudate nucleus while the experimental model was still alive and presenting the torticollis-like posture.
(13) This latter finding is interpreted as representing the consequence of persistent increases or decreases in activity of inhibitory interneurons in the caudate nucleus.
(14) The density of D-1 and D-2 dopamine receptors in human caudate nucleus and putamen, obtained postmortem, were studied throughout the adult lifespan using [3H]fluphenazine as the dopamine receptor ligand.
(15) Only slight evidence of serum neuroleptic activity was shown by radio-receptor assay measurements using [3H]spiperone binding and calf caudates, and the drug's effect on prolactin elevation was short-lasting (less than 10 hours).
(16) The IC50 values for the drugs in tissue sections corresponded closely with their reported IC50 values in monkey caudate-putamen membranes (r = 0.99, p less than 0.001), suggesting that [3H]CFT binding is similar in the two preparations.
(17) After dopamine stores in the caudate nucleus of cats were labeled with [(3)H]dopamine, the ventricular system was perfused with artificial cerebrospinal fluid.
(18) Volumes of caudate, lenticular, and diencephalic structures are estimated, as are grey matter volumes in eight separate cortical regions.
(19) These effects of GABA decreased from the caudal to rostral part within the caudate nucleus, an order which parallels the distribution of endogenous GABA and glutamic acid decarboxylase.
(20) At operation a large tumor arising from the caudate lobe was found and the tumor was totally resected.