scholarly journals The Daily Pattern of Heart Rate, Body Temperature, and Locomotor Activity in Guinea Pigs.

2001 ◽  
Vol 50 (5) ◽  
pp. 409-415 ◽  
Author(s):  
Megumi AKITA ◽  
Keiji ISHII ◽  
Masayoshi KUWAHARA ◽  
Hirokazu TSUBONE
Keyword(s):  
Heart Rate ◽  
Locomotor Activity ◽  
Body Temperature ◽  
Guinea Pigs ◽  
Daily Pattern

scholarly journals A versatile telemetry system for continuous measurement of heart rate, body temperature and locomotor activity in free-ranging ruminants

2010 ◽  
Vol 1 (1) ◽  
pp. 75-85 ◽  
Author(s):  
Claudio Signer ◽  
Thomas Ruf ◽  
Franz Schober ◽  
Gerhard Fluch ◽  
Thomas Paumann ◽  
...  
Keyword(s):  
Heart Rate ◽  
Locomotor Activity ◽  
Body Temperature ◽  
Continuous Measurement ◽  
Telemetry System ◽  
Free Ranging

scholarly journals Effects of Perches on Behavior, Heart Rate, Body Temperature and Locomotor Activity of Caged Hens

2004 ◽  
Vol 41 (2) ◽  
pp. 120-130 ◽  
Author(s):  
Kanji Matsui ◽  
Ashraf M. Khalil ◽  
Ken-ichi Takeda
Keyword(s):  
Heart Rate ◽  
Locomotor Activity ◽  
Body Temperature

scholarly journals Diurnal Variation of Heart Rate, Locomotor Activity, and Body Temperature in Interleukin-1.ALPHA./.BETA. Doubly Deficient Mice.

2002 ◽  
Vol 51 (1) ◽  
pp. 49-56 ◽  
Author(s):  
Masashi FURUZAWA ◽  
Masayoshi KUWAHARA ◽  
Keiji ISHII ◽  
Yoichiro IWAKURA ◽  
Hirokazu TSUBONE
Keyword(s):  
Heart Rate ◽  
Locomotor Activity ◽  
Body Temperature ◽  
Diurnal Variation ◽  
Interleukin 1 ◽  
Alpha Beta ◽  
Deficient Mice

Lipopolysaccharide induces fever and depresses locomotor activity in unrestrained mice

1994 ◽  
Vol 266 (1) ◽  
pp. R125-R135 ◽  
Author(s):  
W. Kozak ◽  
C. A. Conn ◽  
M. J. Kluger
Keyword(s):  
Locomotor Activity ◽  
Food Intake ◽  
Body Temperature ◽  
Guinea Pigs ◽  
Time Course ◽  
Laboratory Animals ◽  
Dependent Manner ◽  
Basic Biology ◽  
Freely Moving ◽  
Dose Dependent

The purpose of this study was to characterize the basic biology of fever to lipopolysaccharide (LPS) in unrestrained mice. Although LPS has been shown to induce fevers in many laboratory animals (e.g., rats, guinea pigs, rabbits), there is some question of whether LPS causes a fall or rise in body temperature (Tb) in mice. Tb was measured by biotelemetry in unrestrained mice maintained at an ambient temperature of 30 degrees C. Intraperitoneal injections of LPS at doses of 1.0, 2.5, and 3.0 mg/kg induced dose-independent prompt decreases of Tb for 5.7 h. After this postinjection reduction, Tb increased and reached a peak at approximately 24 h postinjection. The peak rises in Tb were dose dependent. Changes in Tb due to LPS were accompanied by suppression of locomotor activity. Indomethacin, at a dose that did not affect normal Tb, enhanced the temperature-lowering effect of LPS as well as inhibited the febrile rise of Tb after LPS. Indomethacin did not modify the reduction in activity caused by the injections of LPS. Food intake of the mice was decreased by LPS in a dose-dependent manner, and tolerance developed to a second injection of LPS. We conclude that freely moving mice can develop pronounced and reproducible fevers in response to LPS, which is different in time course, dose-dependent profile, induction of pyrogenic tolerance profile, and mode of inhibition by indomethacin from those responses that have been observed in other species studied so far.

Temporal phasing of locomotor activity, heart rate rhythmicity, and core body temperature is disrupted in VIP receptor 2-deficient mice

2011 ◽  
Vol 300 (3) ◽  
pp. R519-R530 ◽  
Author(s):  
Jens Hannibal ◽  
Hansen M. Hsiung ◽  
Jan Fahrenkrug
Keyword(s):  
Heart Rate ◽  
Locomotor Activity ◽  
Body Temperature ◽  
Circadian Rhythms ◽  
Wheel Running ◽  
Core Body Temperature ◽  
Running Activity ◽  
Wheel Running Activity ◽  
Core Body ◽  
Deficient Mice

Neurons of the brain's biological clock located in the hypothalamic suprachiasmatic nucleus (SCN) generate circadian rhythms of physiology (core body temperature, hormone secretion, locomotor activity, sleep/wake, and heart rate) with distinct temporal phasing when entrained by the light/dark (LD) cycle. The neuropeptide vasoactive intestinal polypetide (VIP) and its receptor (VPAC2) are highly expressed in the SCN. Recent studies indicate that VIPergic signaling plays an essential role in the maintenance of ongoing circadian rhythmicity by synchronizing SCN cells and by maintaining rhythmicity within individual neurons. To further increase the understanding of the role of VPAC2 signaling in circadian regulation, we implanted telemetric devices and simultaneously measured core body temperature, spontaneous activity, and heart rate in a strain of VPAC2-deficient mice and compared these observations with observations made from mice examined by wheel-running activity. The study demonstrates that VPAC2 signaling is necessary for a functional circadian clock driving locomotor activity, core body temperature, and heart rate rhythmicity, since VPAC2-deficient mice lose the rhythms in all three parameters when placed under constant conditions (of either light or darkness). Furthermore, although 24-h rhythms for three parameters are retained in VPAC2-deficient mice during the LD cycle, the temperature rhythm displays markedly altered time course and profile, rising earlier and peaking ∼4–6 h prior to that of wild-type mice. The use of telemetric devices to measure circadian locomotor activity, temperature, and heart rate, together with the classical determination of circadian rhythms of wheel-running activity, raises questions about how representative wheel-running activity may be of other behavioral parameters, especially when animals have altered circadian phenotype.

scholarly journals Spontaneous short-term fluctuations in the daily pattern of heart rate, body temperature and locomotor activity in the laboratory rat

1982 ◽  
Vol 16 (4) ◽  
pp. 319-326 ◽  
Author(s):  
D. Büttner ◽  
Franziska Wollnik
Keyword(s):  
Heart Rate ◽  
Locomotor Activity ◽  
Body Temperature ◽  
Correlation Coefficients ◽  
Short Term ◽  
Large Variability ◽  
Mean Values ◽  
Good Consistency ◽  
Freely Moving ◽  
Lower Correlation

Heart rate (HR), body temperature (BT) and locomotor activity (LA) were measured continuously over 5 days in freely moving rats. In addition to the well-known circadian rhythms, all variables exhibited considerable fluctuations in amplitude mainly during the dark, but also in the light periods. The values of HR varied from 286 ± 12 to 470 ± 26 b.p.m. and BT from 36·15 ± 0·15°C to 38·45 ± 0·25°C. The large variability of HR, BT and LA within a single day was due more to large short-term fluctuations within periods of about 3-5 hours duration, than to differences between the light and the dark period. Good consistency of daily patterns and similarity of the 3 variables was found within the animals. Usually there were 3 or 4 regular peaks during the dark and often another peak 3-4 hours after the onset of light. Correlation coefficients, calculated on the basis of 5-min mean values, were highly significant ( P<0·001) for LA vs HR (0·61-0·73), LA vs BT (0·40-0·53), and HR vs BT (0·61-0·68). Between-hour correlations were higher than these common correlations of 5-min values. HR vs BT (0·76-0·83) and LA vs BT (0·63-0·79) correlated as well as LA vs HR (0·72-0·83). The short-term fluctuations (within-hours) gave lower correlation coefficients for LA vs BT (0·23-0·32) and HR vs BT (0·29-0·41) than LA vs HR (0·40-0·70). This seems to result from a physiological delay of BT relative to HR and LA.

Sign in / Sign up

Export Citation Format

Share Document