Failure of external cues to induce meal initiation in rats with stable blood glucose concentrations

The ‘Dextrostix’-reflectance meter system for blood glucose analysis has been evaluated using a blood glucose reference method. A high degree of concordance between the two methods was obtained when analyses were performed by skilled laboratory staff on venous blood samples containing fluoride, with a 75 s contact time. Skilled laboratory staff performed significantly better than unskilled staff. Capillary blood glucose concentrations correlated poorly with concentrations in venous blood samples taken at the same time as the capillary blood.

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Subjective Symptoms, Blood Glucose Estimation, and Blood Glucose Concentrations in Adolescents With Diabetes

Diabetes Care ◽

10.2337/diacare.9.3.236 ◽

1986 ◽

Vol 9 (3) ◽

pp. 236-243 ◽

Cited By ~ 31

Author(s):

A. Freund ◽

S. B. Johnson ◽

A. Rosenbloom ◽

B. Alexander ◽

C. A. Hansen

Keyword(s):

Blood Glucose ◽

Subjective Symptoms ◽

Glucose Estimation ◽

Blood Glucose Concentrations

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Effect of exercise timing on elevated postprandial glucose levels

Journal of Applied Physiology ◽

10.1152/japplphysiol.00608.2016 ◽

2017 ◽

Vol 123 (2) ◽

pp. 278-284 ◽

Cited By ~ 5

Author(s):

Yoichi Hatamoto ◽

Ryoma Goya ◽

Yosuke Yamada ◽

Eichi Yoshimura ◽

Sena Nishimura ◽

...

Keyword(s):

Blood Glucose ◽

Effect Size ◽

Exercise Intervention ◽

Intermittent Exercise ◽

Random Order ◽

Postprandial Glucose ◽

Glucose Levels ◽

Exercise Timing ◽

Daily Exercise ◽

Blood Glucose Concentrations

There is no consensus regarding optimal exercise timing for reducing postprandial glucose (PPG). The purpose of the present study was to determine the most effective exercise timing. Eleven participants completed four different exercise patterns 1) no exercise; 2) preprandial exercise (jogging); 3) postprandial exercise; and 4) brief periodic exercise intervention (three sets of 1-min jogging + 30 s of rest, every 30 min, 20 times total) in a random order separated by a minimum of 5 days. Preprandial and postprandial exercise consisted of 20 sets of intermittent exercise (1 min of jogging + 30 s rest per set) repeated 3 times per day. Total daily exercise volume was identical for all three exercise patterns. Exercise intensities were 62.4 ± 12.9% V̇o2peak. Blood glucose concentrations were measured continuously throughout each trial for 24 h. After breakfast, peak blood glucose concentrations were lower with brief periodic exercise (99 ± 6 mg/dl) than those with preprandial and postprandial exercise (109 ± 10 and 115 ± 14 mg/dl, respectively, P < 0.05, effect size = 0.517). After lunch, peak glucose concentrations were lower with brief periodic exercise than those with postprandial exercise (97 ± 5 and 108 ± 8 mg/dl, P < 0.05, effect size = 0.484). After dinner, peak glucose concentrations did not significantly differ among exercise patterns. Areas under the curve over 24 h and 2 h postprandially did not differ among exercise patterns. These findings suggest that brief periodic exercise may be more effective than preprandial and postprandial exercise at attenuating PPG in young active individuals. NEW & NOTEWORTHY This was the first study to investigate the effect of different exercise timing (brief periodic vs. preprandial vs. postprandial exercise) on postprandial glucose (PPG) attenuation in active healthy men. We demonstrated that brief periodic exercise attenuated peak PPG levels more than preprandial and postprandial exercise, particularly in the morning. Additionally, PPG rebounded soon after discontinuing postprandial exercise. Thus, brief periodic exercise may be better than preprandial and postprandial exercise at attenuating PPG levels.

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Self monitoring of blood glucose concentrations by non-insulin dependent diabetic patients.

BMJ ◽

10.1136/bmj.305.6863.1171 ◽

1992 ◽

Vol 305 (6863) ◽

pp. 1171-1172 ◽

Cited By ~ 10

Author(s):

R. Tattersall

Keyword(s):

Blood Glucose ◽

Diabetic Patients ◽

Self Monitoring ◽

Insulin Dependent ◽

Insulin Dependent Diabetic ◽

Blood Glucose Concentrations

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Gluconeogenesis in the cow. The effects of a glucocorticoid on hepatic intermediary metabolism

Biochemical Journal ◽

10.1042/bj1160865 ◽

1970 ◽

Vol 116 (5) ◽

pp. 865-874 ◽

Cited By ~ 40

Author(s):

G. D. Baird ◽

R. J. Heitzman

Keyword(s):

Blood Glucose ◽

Ketone Body ◽

Ketone Bodies ◽

Tyrosine Aminotransferase ◽

Aspartate Transaminase ◽

Blood Concentrations ◽

Lactating Cows ◽

Glycolytic Intermediates ◽

Blood Glucose Concentrations ◽

Parallel Measurements

1. The hepatic concentrations of the ketone bodies and of metabolites and activities of enzymes involved in gluconeogenesis were measured in healthy lactating and non-lactating cows 48h after administration of Voren, an ester of dexamethasone, and compared with those found in control animals given saline. Parallel measurements were also made of the blood concentrations of several of the metabolites. 2. Blood glucose concentrations were raised in the Voren-treated animals, whereas blood ketone body and free fatty acid concentrations were unaltered. Similarly there was no change in the hepatic concentrations of the ketone bodies. 3. Significant increases were found in the hepatic concentrations of citrate, 2-oxo-glutarate and malate in both groups of animals given Voren. 4. The hepatic concentrations of those glycolytic intermediates that were measured either decreased or did not change after Voren treatment. 5. The enzymes aspartate transaminase and fructose 1,6-diphosphatase were unchanged in activity after Voren administration, whereas phosphopyruvate carboxylase (EC 4.1.1.32) activity was depressed in the lactating group. However, glucose 6-phosphatase, tryptophan oxygenase and tyrosine aminotransferase increased in activity. 6. In several cases those hepatic metabolites that increased in concentration after Voren administration were present in lower concentration in normal lactating cows than in normal non-lactating cows. The same applied mutatis mutandis to those metabolites that were decreased by Voren. 7. These findings are discussed in relation to the use of glucocorticoids in the treatment of bovine ketosis.

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The Effect of Moderate Glycemic Energy Bar Consumption on Blood Glucose and Mood in Dancers

Medical Problems of Performing Artists ◽

10.21091/mppa.2014.1007 ◽

2014 ◽

Vol 29 (1) ◽

pp. 27-31 ◽

Cited By ~ 2

Author(s):

Derrick Brown ◽

Matthew Wyon

Keyword(s):

Blood Glucose ◽

Affective State ◽

Contemporary Dance ◽

Dance Class ◽

Time Points ◽

Glucose Levels ◽

Blood Glucose Levels ◽

Energy Bar ◽

Blood Glucose Concentrations ◽

The Impact

Ingesting quality carbohydrates has been shown to be essential for dancers. Given that most dance classes take place in the morning, it has been recommended that dancers eat a well-balanced breakfast containing carbohydrates, fats, and protein as a means of fueling this activity. The aim of this study was to determine the effect of a moderate glycemic index energy (MGI) bar or a fasting condition on dancers’ blood glucose levels and perceived pleasure-displeasure response during the first dance class of the day. In a randomized counterbalanced design, 10 female preprofessional dance students took their regular scheduled contemporary dance class, on four separate occasions. On each occasion, they consumed either a commercially prepared carbohydrate (CHO)-dense energy bar (47.3 g CHO) or water (FAST). Plasma glucose responses and pleasure-displeasure affect were measured before and at two time points during the class. Dancers who consumed the MGI bar had significantly greater peak blood glucose levels at all time points than those who fasted (p<0.05). Regarding affective state measures, participants who had breakfast had significantly greater pleasure scores than those who only ingested water (p<0.05). In conclusion, results suggest that CHO with an MGI value positively impacts blood glucose concentrations during a dance class. Further, we conclude that skipping breakfast can have an unfavorable effect on the pleasure-displeasure state of dancers. These findings highlight the impact of breakfast on how one feels, as well as the physiological and metabolic benefits of CHO as an exogenous energy source in dancers.

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