Attenuated thermoregulatory responses with increased plasma osmolality in obese subjects during two seasons

Kanikowska, Dominika; Sato, Maki; Sugenoya, Junichi; Shimizu, Yasuhiko; Nishimura, Naoki; Ikoma, Yoko; Iwase, Satoshi

doi:10.1007/s00484-012-0592-0

Cited by 4 publications

(4 citation statements)

References 17 publications

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“…Second, as discussed above, the rate of temperature decline post mortem would be slower for the fatter, heavier carcasses resulting from grain feeding. Finally, obese humans are more susceptible to heat stress than nonobese individuals as they have a reduced ability to dissipate heat (Kanikowska et al 2013), and the same might be true of fat long-fed cattle.…”

Section: Discussionmentioning

confidence: 99%

“…Intramuscular and other fat accumulation is associated with insulin resistance in humans (Goodpaster et al 1997;Kim et al 2006;Komiya et al 2006) and obese individuals have difficulty dissipating heat (Kanikowska et al 2013). As reviewed by DiGiacomo et al (2014a), long grain feeding is known to increase fat deposition and is postulated to elevate circulating glucose and insulin, presumably through inducing a state of insulin resistance.…”

Section: Discussionmentioning

confidence: 99%

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Factors influencing the incidence of high rigor temperature in beef carcasses in Australia

et al. 2014

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Abstract. Beef carcasses undergoing rapid pH fall while the loin muscle temperature is still high are described as heatshortened, heat-toughened or 'high rigor temperature' carcasses, with subsequent negative effects on quality traits. The aim of the study was to quantify the occurrence of high rigor temperature in beef carcasses across Australia and to identify the causative factors. Data was collected over 4-5 days at each of seven beef processing plants from 1512 beef carcasses. The beef carcasses were from both grass-and grain-fed cattle ranging in days on grain feeding from 0 (grass-fed) to 350 days and the category of cattle ranged from veal to ox and cow. Data collected on the day of slaughter included the duration of electrical inputs at the immobiliser, electrical stimulation and hide puller, longissimus muscle pH and temperature decline, hot carcass weight and P8 fat depth. At grading, ultimate pH, eye muscle area, wetness of the loin surface and colour score were also collected. The temperature at pH 6 was calculated and if it was >35 C, the carcass was defined as 'high rigor temperature'. Modelling of the data was conducted using GLMM and REML. The occurrence of high rigor temperature across all seven beef processing plants was 74.6% ranging from 56 to 94% between beef processing plants. Increasing days in the feedlot and heavier carcass weights were highly correlated and both caused an increase in the predicted temperature at pH 6 and in the % high rigor temperature (P < 0.05 for both). Longer duration of electrical inputs at the hide puller, fatter grass-fed cattle and fatter male (castrate) carcasses had a higher temperature at pH 6 and higher % high rigor temperature. Modelling showed that if the time to reach pH 6 in the longissimus muscle was 65 v. 105 min, the % high rigor temperature carcasses reduced from 98 to 19% in grain-fed cattle and 93 to 7% in grass-fed cattle. Higher plasma insulin levels at slaughter were associated with a higher temperature at pH 6 (rigor temperature) (P < 0.001). In conclusion, in order to reduce the incidence of high rigor temperature in grain-fed beef carcasses, methods for identifying high rigor temperature carcasses will be required and while some management strategies can be implemented now, others require further research.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Factors influencing the incidence of high rigor temperature in beef carcasses in Australia

et al. 2014

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“…Previous research has found attenuated thermoregulatory responses among those with obesity (Kanikowska et al, ). One of the primary mechanisms driving this relationship is that adults with obesity may have an altered distribution of body fluid with a higher volume of extracellular relative to intracellular fluid (Stookey, Barclay, Arieff, & Popkin, ).…”

Section: Life Course Changes and Interactions With Health Conditions mentioning

confidence: 99%

Biobehavioral variation in human water needs: How adaptations, early life environments, and the life course affect body water homeostasis

Rosinger

2019

American J Hum Biol

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Body water homeostasis is critical for optimal physiological and cognitive function for humans. The majority of research has illustrated the negative biological consequences of failing to meet water needs. The human body has several mechanisms for detecting, regulating, and correcting body water deficits and excesses. However, variation exists in total water intake and how people meet those water needs as well as thirst thresholds and how well people tolerate water restriction. An evolutionary and developmental framework provides an underexplored perspective into human water needs by examining how adaptations, early life experiences and environments, as well as life course changes in health states and behaviors may shape these critical factors in body water homeostasis. This article first reviews biological and behavioral adaptations to water scarcity among animals and humans. It then examines human variation in water intake in a mostly water secure environment through the analysis of National Health and Nutrition Examination Survey dietary data and the link between water intake patterns and hydration biomarkers.Next, it reviews existing evidence of how maternal water restriction in utero and during lactation shape vasopressin release, thirst thresholds, drinking patterns, and body water homeostasis for the infant. Early life water restriction appears to have implications for hydration status, body size, and cardiovascular health. Finally, it examines how life course changes in health states and behaviors, including obesity, sleep, and parasitic infection, affect body water homeostasis. This article poses new questions about the plasticity and shaping of human water needs, thirst, and hydration behaviors.

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“…The seasonal changes are executed through fluctuations in humoral signals, including leptin and ghrelin (Adam and Mercer 2004 ; Florant and Healy 2012 ). Interestingly, while leptin concentrations in humans do not exhibit consistent seasonal changes, it has been observed that the levels of leptin, cholesterol and triglycerides in obese males are significantly higher in winter (Kanikowska et al 2013 ).…”

Section: Rhythmicity Of Food Intake Gut Function and Metabolismmentioning

confidence: 99%

Contribution of daily and seasonal biorhythms to obesity in humans

2014

Self Cite

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While the significance of obesity as a serious health problem is well recognized, little is known about whether and how biometerological factors and biorhythms causally contribute to obesity. Obesity is often associated with altered seasonal and daily rhythmicity in food intake, metabolism and adipose tissue function. Environmental stimuli affect both seasonal and daily rhythms, and the latter are under additional control of internal molecular oscillators, or body clocks. Modifications of clock genes in animals and changes to normal daily rhythms in humans (as in shift work and sleep deprivation) result in metabolic dysregulation that favours weight gain. Here, we briefly review the potential links between biorhythms and obesity in humans.

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Attenuated thermoregulatory responses with increased plasma osmolality in obese subjects during two seasons

Cited by 4 publications

References 17 publications

Factors influencing the incidence of high rigor temperature in beef carcasses in Australia

Factors influencing the incidence of high rigor temperature in beef carcasses in Australia

Biobehavioral variation in human water needs: How adaptations, early life environments, and the life course affect body water homeostasis

Contribution of daily and seasonal biorhythms to obesity in humans

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