Abstract：
:The suppressive effect of stress on lactation is well acknowledged. Animal models used to study this problem have used primarily acute stressors. As such, they are not adequate for the study of the effect of prolonged stress on lactation. This study aimed at developing a paradigm(s) in rats for the study of the effect on lactation of prolonged exposure to a stressful situation. Two models were examined. The first consisted of a separation paradigm whereby dams had 1, 2, 4, or 6 contacts per day with their pups, but only for a total of 4 h per day. The second model implicated the introduction of a male intruder into the home cage during the 12-h light period. Both protocols were implemented for four consecutive days beginning on Days 10/11 postpartum. Milk release was measured on Day 13/14 postpartum. For both models, milk release was significantly reduced following the preexposure period. During the assessment of milk release, maternal behavior of the experimental and control animals was similar at all times. It is advanced that these two rat models of stress are appropriate for the study of lactation following a prolonged exposure to stress.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Lau C,Simpson Cdoi
10.1016/j.physbeh.2004.05.004subject
Has Abstractpub_date
2004-09-15 00:00:00pages
193-7issue
2-3eissn
0031-9384issn
1873-507Xpii
S0031938404002288journal_volume
82pub_type
杂志文章abstract：:Recent evidence indicates that rats can learn to avoid aversive consequences of several hours of food deprivation by eating more of food having orosensory characteristics that predict a protracted fast. Two new studies tested if macronutrient composition of a flavoured meal before the reinforcing fast influences this ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2006.02.007
更新日期：2006-06-15 00:00:00
abstract：:Drinking behavior produces a reduction in the unpleasant dry-mouth sensations that accompany thirst. However, it is unclear whether or not the termination of drinking behavior is governed by a mechanism that meters this process. Twenty-two participants were tested in both a "dry mouth" and a control condition. In the ...
journal_title：Physiology & behavior
pub_type： 临床试验,杂志文章
doi：10.1016/s0031-9384(99)00210-3
更新日期：2000-02-01 00:00:00
abstract：:To investigate the role of gastric contractility in the prepyloric control of meal size, we administered atropine methyl nitrate (3 mg/kg,ip) or saline prior to 30-min tests on 3 separate days in which 0.8 M sucrose was ingested by rats after 1 h of food deprivation. Ingested 0.8 M sucrose accumulated in the stomach a...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(95)02132-9
更新日期：1996-02-01 00:00:00
abstract：:Bilateral intracranial injections of puromycin (10 micrograms/0.5 microliter vehicle) into the preoptic area (POA) of steroid-primed ovariectomized rats resulted in a significant decrease in the lordosis response when compared to saline treated controls. To determine the extent of puromycin diffusion after intracrania...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(84)90162-8
更新日期：1984-09-01 00:00:00
abstract：:Sexually experienced male rats were injected IP with 0, 0.3, 1.5, 3.0, or 6.0 mg/kg cadmium chloride. The highest dose was fatal within 48 h of injection. A dose-related deficit in erectile function was observed in ex copula tests 48 h after injection. Copulatory dysfunction was evident in mating tests 72 h after inje...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(94)90332-8
更新日期：1994-11-01 00:00:00
abstract：:The ability of four hallucinogenic compounds: ketamine, phencyclidine, quipazine and SKF-10,047 to produce spike and wave activity in the limbic system, was studied in cats with permanently implanted electrodes. Electronic frequency integrators were used to analyze the results and the percent of change in electrograph...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(84)90240-3
更新日期：1984-12-01 00:00:00
abstract：:The effect of epileptogenic lesion of amygdala on spatial working memory was examined in rats after unilateral (U, n = 9) or bilateral (B, n = 8) injection of 1 or 0.5 mu of 0.2% kainate into the amygdaloid complex. Another group of unilaterally lesioned rats (T, n = 9) received 8 days after kainate injection grafts o...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(89)90124-8
更新日期：1989-02-01 00:00:00
abstract：OBJECTIVE:Epilepsy is the most common neurological chronic condition worldwide, affecting about 2% of world population. Temporal lobe epilepsy (TLE) reaches 40% of all cases of this condition, and it is highly refractory to pharmacological treatment. Physical activity has been suggested as complementary therapy for epi...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2016.12.040
更新日期：2017-03-15 00:00:00
abstract：:A group of young adult females, who had or had not eaten breakfast, drank either a glucose drink or a placebo. Fasting was associated with poorer performance on the Brown-Petersen task, a test of memory. A glucose drink improved the memory of those who had fasted, although it did not influence those who had eaten brea...
journal_title：Physiology & behavior
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0031-9384(99)00040-2
更新日期：1999-08-01 00:00:00
abstract：:The supplementation of methionine and threonine to a 10% soy protein isolate diet caused sharp decreases in the concentrations of brain tryptophan, serotonin and 5HIAA (5-hydroxyindole acetic acid) (e.g., in the hypothalamus, hippocampus, amygdala, locus coeruleus and brain stem). The serum tryptophan ratio (i.e., the...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(91)90587-e
更新日期：1991-12-01 00:00:00
abstract：:A simple device constructed from inexpensive components enables spike activity to be integrated and displayed in a convenient scale (spikes/sec) on a pen recorder. An input voltage threshold detection circuit is employed to eliminate any random baseline noise from being integrated. A pulse output is provided to drive ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(75)90151-1
更新日期：1975-01-01 00:00:00
abstract：:If levels of fatty acids like oleate and octanoate are directly sensed through different fatty acid (FA) sensing systems in hypothalamus of rainbow trout, intracerebroventricular (ICV) administration of FA should elicit effects similar to those previously observed after intraperitoneal (IP) treatment. Accordingly, we ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2014.02.061
更新日期：2014-04-22 00:00:00
abstract：:Social affiliation-avoidance behaviors are essential indices of sociality. We examined changes in social affiliation-avoidance behaviors in an open-field apparatus while simultaneously measuring wheel-running activity. Recent studies suggest that mice increase wheel-running activity in stressful situations; thus, we h...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2007.07.006
更新日期：2008-01-28 00:00:00
abstract：:The effects of gonadectomy and ovarian hormone treatment on food intake, body weight, and lordosis in male and female Mongolian gerbils were examined. In female gerbils, a significant decrease in food intake and body weight was observed after ovariectomy, with estradiol benzoate (1, 10, or 100 micrograms/day) increasi...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(85)90410-x
更新日期：1985-11-01 00:00:00
abstract：:A model for oral drug delivery is described for diminishing bitter taste perception. This model involves the encapsulation of a bitter taste stimulus in lipid microspheres, and the subsequent incorporation of these microspheres in rapidly dissolving edible films that include both masking and flavoring agents. Stearic ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2020.113129
更新日期：2020-11-01 00:00:00
abstract：:A short-term fluid-intake test is described which is directed at the study of individual variation in gustation in laboratory mice. To avoid position preferences associated with two-bottle tests, single graduated cylinders are used to present the solution. Intake of water and solutions is recorded for a 6-h period beg...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(98)00016-x
更新日期：1998-04-01 00:00:00
abstract：:Environmental enrichment (EE) is an experimental model which is believed to counteract some of the effects induced by stressors, although few studies have exposed rodents simultaneously to EE and stress. Our aim was to compare the short- and long-term effects of different housing conditions in mice submitted to chroni...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2016.02.027
更新日期：2016-05-01 00:00:00
abstract：:The goal of this study was to evaluate the effects of ovarian hormones on female rat ultrasonic vocalizations (USVs). Twenty (10 control and 10 ovariectomized) 3-month-old female rats were recorded in 3 recording conditions (elicitation, dyad, and isolation) over a full estrous cycle or time-matched duration. There we...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2020.113248
更新日期：2021-02-01 00:00:00
abstract：:Caffeine is considered a cognitive enhancer at low to moderate doses because it improves alertness, vigilance, attention, and reaction time. However, no previous investigation has assessed the effect of acute caffeine intake on e-sports-specific performance. The aim of this investigation was to determine the effect of...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2020.113031
更新日期：2020-10-01 00:00:00
abstract：:Exogenously administered dihydrotestosterone (DHT) is a potent inhibitor of sexual behavior in ovariectomized, estrogen-primed rats and endogenous DHT has been implicated as an inhibitor of sexual behavior in cycling rats. To determine the temporal relationship between DHT levels and the expression of sexual behavior,...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(88)90298-3
更新日期：1988-01-01 00:00:00
abstract：:Twenty-four-hour recordings of electrophysiological correlates of the sleep-waking cycle in the rat were performed during different stages of cuff pedestal treatment. It was found that rats adapted to live on pedestals with the cuff raised displayed undisturbed patterns of sleep and wakefulness. Lowering the cuff for ...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(84)90283-x
更新日期：1984-06-01 00:00:00
abstract：:Alterations in sleep induced by chronic exposure to mild changes in ambient temperature (Ta) were studied in male Wistar rats with chronically implanted electrodes for recording electrooculogram (EOG), electroencephalogram (EEG) and electromyogram (EMG), and a thermocouple to record the brain temperature (Tbr). Change...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2004.12.003
更新日期：2005-02-15 00:00:00
abstract：OBJECTIVE:Electroacupuncture (EA) as well as moxibustion stimulation has been reported to produce an excitatory effect on the gastrointestinal motility of the rat. Serotonergic neurons of the mioenteric and submucous plexus are major participants in the gastrointestinal physiology. Here, we compared the outcomes of the...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2004.07.003
更新日期：2004-10-15 00:00:00
abstract：:Psychological stressors are known to increase core body temperature (T(c)) in laboratory animals. Such single stress-induced hyperthermic responses are typically monophasic, as T(c) returns to baseline within several hours. However, studies on the effects of repeated psychological stress on T(c) are limited. Therefore...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2010.04.027
更新日期：2010-08-04 00:00:00
abstract：:Intake of a saccharin-conditioned stimulus (CS) can be suppressed following pairing with an aversive agent such as lithium chloride (LiCl) or x-rays (referred to as a conditioned taste aversion or CTA), a highly rewarding sucrose solution (referred to as an anticipatory contrast effect), or a drug of abuse such as mor...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(99)00080-3
更新日期：1999-08-01 00:00:00
abstract：BACKGROUND:There is no consensus about how resilience is related to the different types of stress such as daily or chronic stress and psychopathology. The main objective of this study is to evaluate the relationship between resilience and the different measures of stress such as perceived stress, chronic stress, life e...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2019.02.001
更新日期：2019-04-01 00:00:00
abstract：:The Mashona mole rat, Cryptomys darlingi, is a social, subterranean African rodent that is rarely, if ever, exposed to light, and that exhibits a regressed visual system. This study investigated locomotor activity patterns of Mashona mole rats (n=12) under different light cycles. Activity was measured using either inf...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2004.11.005
更新日期：2005-02-15 00:00:00
abstract：:We previously demonstrated that chronic dietary treatment with acarbose, an alpha-glucosidase inhibitor, improves glucose homeostasis in the streptozotocin (STZ)-induced diabetic rat. In this study we evaluated the effects of 4 weeks of acarbose treatment on glucose homeostasis in STZ-diabetic rats for both meal-fed (...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/s0031-9384(98)00013-4
更新日期：1998-03-01 00:00:00
abstract：:Previous research has demonstrated that rapid eye movement (REM), or paradoxical, sleep deprivation can interfere with the retention of certain types of learning tasks, particularly spatial learning. The present study investigated the effects of 6 h of REM sleep deprivation on the retention and extinction of both cued...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2004.11.011
更新日期：2005-03-16 00:00:00
abstract：:Feeding in vertebrates is controlled by a number of appetite stimulating (orexigenic, e.g., orexin and neuropeptide Y, NPY) and appetite suppressing (anorexigenic, e.g., cholecystokinin, CCK and cocaine- and amphetamine-regulated transcript, CART) hormones. Cunners (Tautogolabrus adspersus) survive the winter in shall...
journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/j.physbeh.2013.06.022
更新日期：2013-08-15 00:00:00
