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Thomas Reilly - One of the best experts on this subject based on the ideXlab platform.
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Rectal Temperature distal sweat rate and forearm blood flow following mild exercise at two phases of the circadian cycle
Chronobiology International, 2007Co-Authors: Jim Waterhouse, Seika Aizawa, Alan M Nevill, Benjamin Edwards, Dietmar Weinert, Greg Atkinson, Thomas ReillyAbstract:Changes in Rectal Temperature during mild exercise in the middle of the rising (11:00 h) and falling (23:00 h) phases of the circadian rhythm of resting core Temperature have been compared. Seven healthy males were studied at rest, while exercising on a cycle ergometer (60 min at 80 W), and during the first 30 min of recovery. Rectal Temperature, forearm blood flow, and forearm sweat rate were measured at 1 min intervals throughout. During exercise, there were significant time‐of‐day differences in the profiles of all three variables, and in the thresholds for increases in forearm blood flow and sweating. Forearm blood flow and sweat rate were recruited more rapidly and to a greater extent with evening exercise, and Rectal Temperature rose less. Analysis of covariance, with Rectal Temperature as the covariate, indicated the associations between it and forearm blood flow or sweating were significantly different (p<0.05) between the two times of day. There were also significant (p<0.05) time‐of‐day effects ...
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Rectal Temperature, distal sweat rate, and forearm blood flow following mild exercise at two phases of the circadian cycle
Chronobiology international, 2007Co-Authors: Jim Waterhouse, Seika Aizawa, Alan M Nevill, Benjamin Edwards, Dietmar Weinert, Greg Atkinson, Thomas ReillyAbstract:Changes in Rectal Temperature during mild exercise in the middle of the rising (11:00 h) and falling (23:00 h) phases of the circadian rhythm of resting core Temperature have been compared. Seven healthy males were studied at rest, while exercising on a cycle ergometer (60 min at 80 W), and during the first 30 min of recovery. Rectal Temperature, forearm blood flow, and forearm sweat rate were measured at 1 min intervals throughout. During exercise, there were significant time‐of‐day differences in the profiles of all three variables, and in the thresholds for increases in forearm blood flow and sweating. Forearm blood flow and sweat rate were recruited more rapidly and to a greater extent with evening exercise, and Rectal Temperature rose less. Analysis of covariance, with Rectal Temperature as the covariate, indicated the associations between it and forearm blood flow or sweating were significantly different (p
Jim Waterhouse - One of the best experts on this subject based on the ideXlab platform.
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Rectal Temperature distal sweat rate and forearm blood flow following mild exercise at two phases of the circadian cycle
Chronobiology International, 2007Co-Authors: Jim Waterhouse, Seika Aizawa, Alan M Nevill, Benjamin Edwards, Dietmar Weinert, Greg Atkinson, Thomas ReillyAbstract:Changes in Rectal Temperature during mild exercise in the middle of the rising (11:00 h) and falling (23:00 h) phases of the circadian rhythm of resting core Temperature have been compared. Seven healthy males were studied at rest, while exercising on a cycle ergometer (60 min at 80 W), and during the first 30 min of recovery. Rectal Temperature, forearm blood flow, and forearm sweat rate were measured at 1 min intervals throughout. During exercise, there were significant time‐of‐day differences in the profiles of all three variables, and in the thresholds for increases in forearm blood flow and sweating. Forearm blood flow and sweat rate were recruited more rapidly and to a greater extent with evening exercise, and Rectal Temperature rose less. Analysis of covariance, with Rectal Temperature as the covariate, indicated the associations between it and forearm blood flow or sweating were significantly different (p<0.05) between the two times of day. There were also significant (p<0.05) time‐of‐day effects ...
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Rectal Temperature, distal sweat rate, and forearm blood flow following mild exercise at two phases of the circadian cycle
Chronobiology international, 2007Co-Authors: Jim Waterhouse, Seika Aizawa, Alan M Nevill, Benjamin Edwards, Dietmar Weinert, Greg Atkinson, Thomas ReillyAbstract:Changes in Rectal Temperature during mild exercise in the middle of the rising (11:00 h) and falling (23:00 h) phases of the circadian rhythm of resting core Temperature have been compared. Seven healthy males were studied at rest, while exercising on a cycle ergometer (60 min at 80 W), and during the first 30 min of recovery. Rectal Temperature, forearm blood flow, and forearm sweat rate were measured at 1 min intervals throughout. During exercise, there were significant time‐of‐day differences in the profiles of all three variables, and in the thresholds for increases in forearm blood flow and sweating. Forearm blood flow and sweat rate were recruited more rapidly and to a greater extent with evening exercise, and Rectal Temperature rose less. Analysis of covariance, with Rectal Temperature as the covariate, indicated the associations between it and forearm blood flow or sweating were significantly different (p
Nicole C Burdick - One of the best experts on this subject based on the ideXlab platform.
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temperament influences endotoxin induced changes in Rectal Temperature sickness behavior and plasma epinephrine concentrations in bulls
Innate Immunity, 2011Co-Authors: Nicole C Burdick, Jeffery A Carroll, L E Hulbert, J W Dailey, M A Ballou, R D Randel, Scott T Willard, R C Vann, T H WelshAbstract:This study was designed to determine the influence of temperament on endotoxin-induced changes in body Temperature, sickness behavior, and stress hormone concentrations in cattle. Brahman bulls were selected based on temperament score measured 28 d prior to weaning. In dwelling recording devices were used to monitor Rectal Temperature, and jugular catheters were used to collect blood samples to determine cortisol and epinephrine concentrations before and after LPS administration (0.5 μg/kg body weight). Temperamental bulls had the lowest peak Rectal Temperature and sickness behavior scores relative to the Calm and Intermediate bulls. Prior to the administration of LPS, Temperamental bulls had greater cortisol and epinephrine concentrations than Calm or Intermediate bulls. Cortisol concentrations increased following LPS administration but were not affected by temperament. Epinephrine concentrations peaked 1 h after LPS administration in Calm bulls. Temperamental bulls did not exhibit an epinephrine response to LPS challenge. These data demonstrate that the temperament of calves can modulate the physiological, behavioral, and endocrine responses of pre-pubertal Brahman bulls to endotoxin challenge. Specifically, temperament differentially affected the Rectal Temperature, sickness behavior and epinephrine, but not cortisol, responses to LPS challenge.
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relationships between temperament and transportation with Rectal Temperature and serum concentrations of cortisol and epinephrine in bulls
Livestock Science, 2010Co-Authors: Nicole C Burdick, Jeffery A Carroll, L E Hulbert, J W Dailey, Scott T Willard, R C Vann, T H Welsh, R D RandelAbstract:This study investigated whether temperament influences Rectal Temperature and serum concentrations of cortisol and epinephrine in response to transportation. Brahman bulls were selected based on temperament score (average of exit velocity, EV, and pen score, PS) measured 28 days prior to weaning with the 8 most Calm (0.89 ± 0.15 EV and 1.00 ± 0.00 PS), 8 most Temperamental (3.70 ± 0.29 EV and 4.88 ± 0.13 PS), and the 8 Intermediate (1.59 ± 0.12 EV and 2.25 ± 0.16 PS) selected from a pool of 60 bulls. Whole blood was collected pre- and post-transport, and Rectal Temperature recording devices were inserted pre-transport for continual collection of Rectal Temperature during transport. Bulls were transported in a trailer 770 km from Overton, TX (32.27 N, − 94.98 W, 153 m altitude) to New Deal, TX (33.74 N, − 101.84 W, 1006 m altitude). Serum cortisol and plasma epinephrine concentrations were determined. Prior to transportation (0 min) Temperamental bulls had greater Rectal Temperature than Calm or Intermediate bulls (P < 0.05). Rectal Temperature peaked within 30 min after the onset of transportation with Temperamental bulls having greater peak Rectal Temperatures than Calm or Intermediate bulls (P < 0.05). The lowest mean Rectal Temperature was reached 400 min after the onset of transportation with Calm bulls having lower mean Rectal Temperatures than Intermediate or Temperamental bulls (P < 0.05). Prior to transportation Temperamental bulls had greater cortisol concentrations than Calm bulls (P < 0.05). Temperamental bulls had greater concentrations of epinephrine prior to transportation than Calm or Intermediate bulls (P < 0.05). Temperamental bulls also had greater concentrations of cortisol and epinephrine post-transportation than Calm bulls (P < 0.05). Maximum and minimum Rectal Temperature were positively correlated (r = 0.73; P < 0.01). There was a positive correlation between EV and maximum Rectal Temperature (r = 0.62; P = 0.01), and a trend for EV to be positively correlated with minimum Rectal Temperature (r = 0.43; P = 0.10). Epinephrine tended to be positively correlated with maximum Rectal Temperature (r = 0.46; P = 0.06). Both cortisol (pre-transportation r = 0.55; P = 0.02) and epinephrine (pre- and post-transportation (r = 0.64; P < 0.01 and r = 0.59; P < 0.01, respectively) were positively correlated with EV. In summary, temperament was predictive of 1) changes in Rectal Temperature due to transportation and 2) circulating concentrations of cortisol and epinephrine before and after transportation.
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Relationships between temperament and transportation with Rectal Temperature and serum concentrations of cortisol and epinephrine in bulls
Livestock Science, 2010Co-Authors: Nicole C Burdick, Jeffery A Carroll, L E Hulbert, J W Dailey, Scott T Willard, R C Vann, T H Welsh, R D RandelAbstract:This study investigated whether temperament influences Rectal Temperature and serum concentrations of cortisol and epinephrine in response to transportation. Brahman bulls were selected based on temperament score (average of exit velocity, EV, and pen score, PS) measured 28 days prior to weaning with the 8 most Calm (0.89 ± 0.15 EV and 1.00 ± 0.00 PS), 8 most Temperamental (3.70 ± 0.29 EV and 4.88 ± 0.13 PS), and the 8 Intermediate (1.59 ± 0.12 EV and 2.25 ± 0.16 PS) selected from a pool of 60 bulls. Whole blood was collected pre- and post-transport, and Rectal Temperature recording devices were inserted pre-transport for continual collection of Rectal Temperature during transport. Bulls were transported in a trailer 770 km from Overton, TX (32.27 N, − 94.98 W, 153 m altitude) to New Deal, TX (33.74 N, − 101.84 W, 1006 m altitude). Serum cortisol and plasma epinephrine concentrations were determined. Prior to transportation (0 min) Temperamental bulls had greater Rectal Temperature than Calm or Intermediate bulls (P
Giuseppe Piccione - One of the best experts on this subject based on the ideXlab platform.
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causal link of total locomotor activity melatonin and Rectal Temperature daily rhythm in small ruminants
Journal of Applied Biomedicine, 2016Co-Authors: Claudia Giannetto, Francesco Fazio, Vincenzo Carcangiu, Sebastiano Luridiana, Maria Consuelo Mura, Albamaria Parmeggiani, Giuseppe PiccioneAbstract:To improve the knowledge in chronophysiology we investigated the causal link between the most important physiological variable studied until now; ten Sarda ewes and ten Sarda goats, pluriparus not pregnant and no lactating, were used. Animals were housed under natural environmental conditions in a common stall, alfalfa hay and water were available ad libitum. Each animal was equipped with an Actiwatch-Mini® for recording total activity. Blood samples were collected every 4 h over a 48 h period for the assessment of melatonin concentration. Rectal Temperature was recorded with a digital thermometer immediately before the blood sampling at each data point. Single cosinor method showed a daily rhythm of studied variables. Higher MESOR and amplitude values of melatonin and Rectal Temperature were observed in sheep than in goats. The diurnal acrophase of locomotor activity was statistically different from the nocturnal acrophase of melatonin and Rectal Temperature, with no differences between the two species. Robustness was statistically lower in total locomotor activity in comparison with the others two variables, with a differences due to species in melatonin daily rhythm. In conclusion, in small ruminants, melatonin and Rectal Temperature daily rhythms are strictly correlated, and are not associated with the locomotor activity rhythm.
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comparison of cortisol and Rectal Temperature circadian rhythms in horses the role of light dark cycle and constant darkness
Biological Rhythm Research, 2012Co-Authors: Claudia Giannetto, Francesco Fazio, Irene Vazzana, Michele Panzera, Giuseppe PiccioneAbstract:To investigate the daily rhythm of cortisol in horse and to establish whether this rhythm is endogenously generated, we assessed serum cortisol concentrations in five clinically healthy Italian Saddle horses housed in individual boxes under natural light/dark (L/D) cycle followed by constant darkness, and we compared our results with the good established body Temperature circadian rhythm. Blood samples and Rectal Temperature were collected every 3 h during all the experimental period. Two-way for repeated measure analysis of variance showed statistically significant effect of time and no effect of experimental conditions on both studied parameters. In the two experimental conditions, both parameters showed robust circadian rhythmicity, with diurnal acrophase for cortisol and nocturnal acrophase for Rectal Temperature. In conclusion, serum cortisol daily fluctuation showed oppose trend respect to daily fluctuation of Rectal Temperature, and its rhythm is endogenously generated.
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Daily rhythms of Rectal Temperature and total locomotor activity in trained and untrained horses
Journal of Veterinary Behavior, 2011Co-Authors: Giuseppe Piccione, Claudia Giannetto, Simona Marafioti, Stefania Casella, Francesco Fazio, Giovanni CaolaAbstract:Abstract In this study the authors evaluated the influence of physical activity on the daily rhythm of Rectal Temperature and total locomotor activity in untrained and trained horses. Rectal Temperature and locomotor activity of 12 Italian saddle horses, 6 untrained (group A) and 6 trained (group B), was recorded for 48 h. Rectal Temperature was recorded every 4 h with a Rectal probe. Animals were equipped with actigraphy-based data loggers, Actiwatch-Mini ® to record total activity. The application of two-way ANOVA showed a highly significant effect of time and exercise on Rectal Temperature in untrained and trained horses in both days of monitoring. A significant effect of time on locomotor activity was observed, but there was no effect of exercise. Cosinor analysis identified the periodic parameters and their acrophases during the 2 days of monitoring. For all rhythmic parameters of Rectal Temperature except amplitude, no statistically significant differences were observed between the two groups. Statistically significant differences for the rhythmic parameters of locomotor activity, except robustness, between untrained and trained horses were found. In conclusion, Rectal Temperature circadian pattern was similar in untrained and trained horses, indicating that the endogenous nature of its rhythm was not influenced by external stimuli such as physical exercise.
T H Welsh - One of the best experts on this subject based on the ideXlab platform.
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temperament influences endotoxin induced changes in Rectal Temperature sickness behavior and plasma epinephrine concentrations in bulls
Innate Immunity, 2011Co-Authors: Nicole C Burdick, Jeffery A Carroll, L E Hulbert, J W Dailey, M A Ballou, R D Randel, Scott T Willard, R C Vann, T H WelshAbstract:This study was designed to determine the influence of temperament on endotoxin-induced changes in body Temperature, sickness behavior, and stress hormone concentrations in cattle. Brahman bulls were selected based on temperament score measured 28 d prior to weaning. In dwelling recording devices were used to monitor Rectal Temperature, and jugular catheters were used to collect blood samples to determine cortisol and epinephrine concentrations before and after LPS administration (0.5 μg/kg body weight). Temperamental bulls had the lowest peak Rectal Temperature and sickness behavior scores relative to the Calm and Intermediate bulls. Prior to the administration of LPS, Temperamental bulls had greater cortisol and epinephrine concentrations than Calm or Intermediate bulls. Cortisol concentrations increased following LPS administration but were not affected by temperament. Epinephrine concentrations peaked 1 h after LPS administration in Calm bulls. Temperamental bulls did not exhibit an epinephrine response to LPS challenge. These data demonstrate that the temperament of calves can modulate the physiological, behavioral, and endocrine responses of pre-pubertal Brahman bulls to endotoxin challenge. Specifically, temperament differentially affected the Rectal Temperature, sickness behavior and epinephrine, but not cortisol, responses to LPS challenge.
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relationships between temperament and transportation with Rectal Temperature and serum concentrations of cortisol and epinephrine in bulls
Livestock Science, 2010Co-Authors: Nicole C Burdick, Jeffery A Carroll, L E Hulbert, J W Dailey, Scott T Willard, R C Vann, T H Welsh, R D RandelAbstract:This study investigated whether temperament influences Rectal Temperature and serum concentrations of cortisol and epinephrine in response to transportation. Brahman bulls were selected based on temperament score (average of exit velocity, EV, and pen score, PS) measured 28 days prior to weaning with the 8 most Calm (0.89 ± 0.15 EV and 1.00 ± 0.00 PS), 8 most Temperamental (3.70 ± 0.29 EV and 4.88 ± 0.13 PS), and the 8 Intermediate (1.59 ± 0.12 EV and 2.25 ± 0.16 PS) selected from a pool of 60 bulls. Whole blood was collected pre- and post-transport, and Rectal Temperature recording devices were inserted pre-transport for continual collection of Rectal Temperature during transport. Bulls were transported in a trailer 770 km from Overton, TX (32.27 N, − 94.98 W, 153 m altitude) to New Deal, TX (33.74 N, − 101.84 W, 1006 m altitude). Serum cortisol and plasma epinephrine concentrations were determined. Prior to transportation (0 min) Temperamental bulls had greater Rectal Temperature than Calm or Intermediate bulls (P < 0.05). Rectal Temperature peaked within 30 min after the onset of transportation with Temperamental bulls having greater peak Rectal Temperatures than Calm or Intermediate bulls (P < 0.05). The lowest mean Rectal Temperature was reached 400 min after the onset of transportation with Calm bulls having lower mean Rectal Temperatures than Intermediate or Temperamental bulls (P < 0.05). Prior to transportation Temperamental bulls had greater cortisol concentrations than Calm bulls (P < 0.05). Temperamental bulls had greater concentrations of epinephrine prior to transportation than Calm or Intermediate bulls (P < 0.05). Temperamental bulls also had greater concentrations of cortisol and epinephrine post-transportation than Calm bulls (P < 0.05). Maximum and minimum Rectal Temperature were positively correlated (r = 0.73; P < 0.01). There was a positive correlation between EV and maximum Rectal Temperature (r = 0.62; P = 0.01), and a trend for EV to be positively correlated with minimum Rectal Temperature (r = 0.43; P = 0.10). Epinephrine tended to be positively correlated with maximum Rectal Temperature (r = 0.46; P = 0.06). Both cortisol (pre-transportation r = 0.55; P = 0.02) and epinephrine (pre- and post-transportation (r = 0.64; P < 0.01 and r = 0.59; P < 0.01, respectively) were positively correlated with EV. In summary, temperament was predictive of 1) changes in Rectal Temperature due to transportation and 2) circulating concentrations of cortisol and epinephrine before and after transportation.
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Relationships between temperament and transportation with Rectal Temperature and serum concentrations of cortisol and epinephrine in bulls
Livestock Science, 2010Co-Authors: Nicole C Burdick, Jeffery A Carroll, L E Hulbert, J W Dailey, Scott T Willard, R C Vann, T H Welsh, R D RandelAbstract:This study investigated whether temperament influences Rectal Temperature and serum concentrations of cortisol and epinephrine in response to transportation. Brahman bulls were selected based on temperament score (average of exit velocity, EV, and pen score, PS) measured 28 days prior to weaning with the 8 most Calm (0.89 ± 0.15 EV and 1.00 ± 0.00 PS), 8 most Temperamental (3.70 ± 0.29 EV and 4.88 ± 0.13 PS), and the 8 Intermediate (1.59 ± 0.12 EV and 2.25 ± 0.16 PS) selected from a pool of 60 bulls. Whole blood was collected pre- and post-transport, and Rectal Temperature recording devices were inserted pre-transport for continual collection of Rectal Temperature during transport. Bulls were transported in a trailer 770 km from Overton, TX (32.27 N, − 94.98 W, 153 m altitude) to New Deal, TX (33.74 N, − 101.84 W, 1006 m altitude). Serum cortisol and plasma epinephrine concentrations were determined. Prior to transportation (0 min) Temperamental bulls had greater Rectal Temperature than Calm or Intermediate bulls (P