Abstract：
:Rainbow trout were infused continuously for 12h with epinephrine in the presence or absence of alpha-and/or beta-adrenergic blockade to characterize the specific adrenergic mechanisms involved in the control of blood acid-base status and oxygen transport capacity. Infusion of epinephrine, alone, produced a transient respiratory acidosis, as indicated by an increase in carbon dioxide tension and a decrease in whole blood pH, yet arterial oxygen tension was elevated. Red blood cell pH increased by approximately 0.2 pH units during epinephrine infusion and this increase as well as the increase in oxygen tension were prevented by pretreatment with propranolol (a beta-adrenergic antagonist). Epinephrine infusion during alpha-adrenergic blockade caused a prolonged elevation of blood carbon dioxide tension and abolished the increases in hematocrit and hemoglobin concentrations observed during epinephrine infusion alone. Infusion of the alpha-adrenergic agonists phenylephrine (an alpha1 agonist) or clonidine (an alpha2 agonist) caused respiratory acidosis (decreased pH, increased CO2 tension) and a reduction in oxygen tension. Infusion of isoprenaline (a non-specific beta agonist) caused delayed increases in carbon dioxide and oxygen tensions. We speculate that the increased carbon dioxide tension observed during epinephrine infusion is a result of beta-adrenoceptor mediated inhibition of red blood cell bicarbonate dehydration and not branchial convective or diffusive adjustments. The effects of epinephrine on blood O2 tension, content and carrying capacity are discussed with reference to the participation of alpha- and beta-adrenergic mechanisms at the gill, spleen and red blood cell.
journal_name
Fish Physiol Biochemjournal_title
Fish physiology and biochemistryauthors
Vermette MG,Perry SFdoi
10.1007/BF01871745subject
Has Abstractpub_date
1988-01-01 00:00:00pages
189-202issue
4eissn
0920-1742issn
1573-5168journal_volume
4pub_type
杂志文章abstract：:Drinking in freshwater juvenile salmon was investigated in response to vasodilation by sodium nitroprusside (SNP), a nitric oxide donor, which significantly increased blood vessel diameter in Atlantic salmon alevins. Atlantic salmon fry (1-3 g), as previously shown, drank at a significant rate in fresh water which dou...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/BF01874839
更新日期：1996-02-01 00:00:00
abstract：:An investigation has been described on the relationship of body length, age and sex with adipose fin length and the number of androgen receptor (AR)-containing cells in the adipose fin as a secondary sexual characteristic for brown trout (Salmo trutta fario). Firstly, body and adipose fin lengths of 2- to 5-year-old b...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-012-9694-1
更新日期：2013-04-01 00:00:00
abstract：:The objective of the present study was to confirm previous results on the mediation of GnRH signal in tilapia by providing evidence from experiments in cultured pituitary cells and from perifusion experiments using a GnRH-antagonist. After 4 days in culture under identical conditions, cells taken from pituitaries of f...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/BF00004550
更新日期：1993-07-01 00:00:00
abstract：:Juvenile sea bass, 1.5 years old, of mixed sex, held on long photoperiods were fed early on the photoperiod and late on the photoperiod, using different diets. Fish fed natural diets showed a daily rhythmicity of plasma insulin, liver c-AMP, plasma glucose, liver glycogen and muscle glycogen content, however, fish fed...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/BF01874796
更新日期：1988-10-01 00:00:00
abstract：:Studies on the digestive secretions in aquatic animals can elucidate certain aspects of their nutritive physiology. The aim of the present study was to compare the digestive lipase and phospholipase activities in ten marine species belonging to four classes following the taxonomic classification of marine organisms. A...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-012-9633-1
更新日期：2012-10-01 00:00:00
abstract：:A 90-day randomized feeding experiment was performed to assess the effects of dietary cobalt (Co) supplementation on the growth performance, muscle composition, status of iron and manganese in the muscle as well as the expression of growth-related genes in the muscle (myoblast determination protein 1 homolog (MyoD) an...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-019-00723-5
更新日期：2020-02-01 00:00:00
abstract：:Estuarine environments are characterized by cyclical fluctuations in tides, with tidal shifts drastically, frequently, and acutely altering temperature, dissolved oxygen, and salinity. Despite these ecological challenges, the sheepshead minnow, Cyprinodon variegatus, seems to dominate estuarine landscapes. Here, we he...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-018-0583-0
更新日期：2019-04-01 00:00:00
abstract：:The peptide YYb (PYYb) is a fish-specific peptide belonging to the neuropeptide Y (NPY) family. In the present study, the full-length cDNA sequence and genomic structure of PYYb (gcPYYb) from Ctenopharyngodon idellus have been isolated and characterized. The gcPYYb gene consists of three exons interspaced by two intro...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-013-9822-6
更新日期：2014-02-01 00:00:00
abstract：:Muscle tissues contribute 34-48 % of the total body mass in fish. Proteomic analysis enables better understanding of the skeletal muscle physiology and metabolism. A proteome map reflects the general fingerprinting of the fish species and has the potential to identify novel proteins which could serve as biomarkers for...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-015-0046-9
更新日期：2015-06-01 00:00:00
abstract：:Sperm quality parameters in rainbow trout (Oncorhynchus mykiss) were investigated during normal season spawning (November-January) and out-season spawning (July-August) treated with artificial photoperiod manipulation. Normal spawning males (n = 15) were kept in an open concrete pond under natural condition. Out-seaso...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-018-0564-3
更新日期：2018-12-01 00:00:00
abstract：:Exposure to high temperatures can lead to thermotolerance in fish, which is hypothesized to potentially improve post-release survival in species under restocking programs, like Atlantic sturgeon. The aim of this study was to determine whether Atlantic sturgeon juveniles exposed to a 4-week temperature treatment respon...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-020-00818-4
更新日期：2020-10-01 00:00:00
abstract：:In vertebrate species, the biopotential embryonic gonad differentiation is affected by many key genes and key steroidogenic enzymes. Insulin-like growth factor-1 receptor (Igf1r) has been considered as an important sex-differentiation gene in mammals and could mediate the biological action of Igf1, an important regula...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-014-9914-y
更新日期：2014-08-01 00:00:00
abstract：:In the catfish Heteropneustes fossilis, the anterior kidney is a hemopoietic tissue which surrounds the adrenal homologues, interrenal (IR) and chromaffin tissues corresponding to the adrenal cortical and adrenal medulla of higher mammals. The IR tissue is arranged in cell cords around the posterior cardinal vein (PCV...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-016-0218-2
更新日期：2016-10-01 00:00:00
abstract：:Fish red blood cells (RBCs) exhibit an oxygen-dependent regulatory volume decrease (RVD) in hypoosmotic environment. In higher vertebrates, membrane-associated hemoglobin is involved in the regulation of osmotic ion movements across the cellular membrane. However, whether the hemoglobin conformational state plays a ro...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-019-00689-4
更新日期：2019-12-01 00:00:00
abstract：:Biological organisms are constantly challenged by xenobiotics and have evolved mechanisms to reduce, neutralize, or repair toxic outcomes. The various chemical defenses all utilize energy, but their specific costs and impacts on energy budgets are currently unknown. In this study, the energetic costs associated with t...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-020-00911-8
更新日期：2021-01-06 00:00:00
abstract：:Fish metabolic allostatic dynamics, when animal present physiological modifications that can be strategies to survive, are important for promoting changes to ensure whole body self-protection and survival in chronic states of stress. To determine the impact of sequential stressors on pacu (Piaractus mesopotamicus), fi...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-020-00789-6
更新日期：2020-08-01 00:00:00
abstract：:The dmrt (doublesex and mab-3 related transcription factor) gene family comprises several transcription factors that share a conserved DM domain. Dmrt1 is considered to be involved in sexual development, but the precise function of other family members is unclear. In this study, we isolated genomic DNA and cDNA sequen...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-008-9267-5
更新日期：2009-08-01 00:00:00
abstract：:The rate of oxygen consumption of minced whole body was determined volumetrically, as an indication of metabolic rate in vitro (M in vitro ), at 20°C in porgy Pagrus major ranging from 0.0002 g (just after hatch) to 2.9 g (67 days old) in body mass. A triphasic relationship was found between M in vitro of individual f...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/BF00004511
更新日期：1992-10-01 00:00:00
abstract：:The pineal organ of fish, through its 24h rhythmic release of melatonin, acts as a transducer of the photoperiod, influencing different physiological functions (e.g., reproduction, growth). The target sites for melatonin are poorly known in fish, especially marine species. A radioligand study was undertaken using the ...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/BF01875583
更新日期：1996-11-01 00:00:00
abstract：:Variation in individual size has important consequences for a number of characteristics of fish, which can impact fish populations. The impact of fish size on recovery following exercise, however, is poorly understood, with little information existing on the recovery of ionic/osmotic variables. The goal of this study ...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-011-9510-3
更新日期：2012-04-01 00:00:00
abstract：:We have studied the seasonal relationship between growth and circulating growth hormone (GH), hepatic GH-binding and plasma insulin-like growth factor-I immunoreactivity in gilthead sea bream,Sparus aurata. The seasonal increase in plasma GH levels preceded by several weeks the summer increase in growth rates. In cont...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/BF00004358
更新日期：1994-07-01 00:00:00
abstract：:Selected biochemical parameters were measured in the plasma of both underyearling anadromous steelhead trout (Salmo gairdneri) and underyearling residentS. gairdneri. The analyses were conducted in an effort to determine whether or not there might be changes which could be associated with the parr-smolt transformation...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/BF01874727
更新日期：1988-03-01 00:00:00
abstract：:Changes in serum thyroxine (T4), estradiol-17β (E2) and testosterone (T) levels during the parr-smolt transformation (smoltification) were investigated in the masu salmon (Oncorhynchus masou) in 1985 and 1987. T4 showed a peak in levels at the early stage of smoltification and E2 and T levels peaked almost at the same...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/BF00004317
更新日期：1993-07-01 00:00:00
abstract：:A 60-day feeding trial was conducted to study the effect of exogenous enzymes (xylanase and phytase) supplementation in the non-fermented and fermented de-oiled rice bran (DORB)-based diet of Labeo rohita. Four test diets (T1-DORB-based diet, T2-fermented DORB-based diet, T3-phytase and xylanase supplemented DORB-base...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-018-0492-2
更新日期：2018-08-01 00:00:00
abstract：:The retinoid X receptors (RXRs) are involved in the skeletal development and other biological process such as blood vessel formation and metabolism. Partial sequences of RXRα and β genes were obtained, and their expressions were quantified on golden pompano Trachinotus ovatus at 28 days post hatching (DPH) to explore ...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-015-0098-x
更新日期：2015-12-01 00:00:00
abstract：:The objective of this study was to determine the effect of two levels of inclusion of xylan oligosaccharides (XOS) extracted from corncob on growth, feed utilization, immune status and disease resistance of Mediterranean sea bass (Dicentrarchus labrax) fingerlings. Specimens of 4.75 ± 0.69 g at initial density of 2.7 ...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-015-0110-5
更新日期：2015-12-01 00:00:00
abstract：:Feeding experiments and laboratory analyses were conducted to establish the essential fatty acid (EFA) requirement of red drum (Sciaenops ocellatus). Juvenile red drum were maintained in aquaria containing brackish water (5 ± 2‰ total dissolved solids) for two 6-week experiments. Semipurified diets contained a total o...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/BF00004370
更新日期：1993-10-01 00:00:00
abstract：:Glutathione (GSH) concentration, the activity of its metabolizing enzymes, glutathione transferase (GST), glutathione peroxidase (GPx), glutathione reductase (GR), and the antioxidant enzyme catalase (CAT) in O. niloticus ovary and testis were examined. GSH concentration of O. niloticus testis exhibited high concentra...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-015-0143-9
更新日期：2016-02-01 00:00:00
abstract：:Antipsychotic agents are used for the treatment of psychotic symptoms in patients with several brain disorders, such as schizophrenia. Atypical and typical antipsychotics differ regarding their clinical and side-effects profile. Haloperidol is a representative typical antipsychotic drug and has potent dopamine recepto...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-015-0093-2
更新日期：2015-12-01 00:00:00
abstract：:In this study, for the first time, both neuropeptides isotocin (IT) and arginine vasotocin (AVT) have been identified and measured in urophysis, the neurohaemal organ of the caudal neurosecretory system of teleost fish. So far, AVT, but not IT, was quantified by radioimmunoassay (RIA) in urophysis of several fish spec...
journal_title：Fish physiology and biochemistry
pub_type： 杂志文章
doi：10.1007/s10695-012-9746-6
更新日期：2013-08-01 00:00:00
