keyword
MENU ▼
Read by QxMD icon Read
search

Indirect calorimetry

keyword
https://www.readbyqxmd.com/read/28239405/long-term-intake-of-saccharin-decreases-post-absortive-energy-expenditure-at-rest-and-is-associated-to-greater-weight-gain-relative-to-sucrose-in-wistar-rats
#1
Denise Entrudo Pinto, Kelly Carraro Foletto, Ramiro Barcos Nunes, Pedro Dal Lago, Marcello Casaccia Bertoluci
BACKGROUND: Non-nutritive sweeteners (NNS) have been associated with increased prevalence of obesity. In previous studies, we demonstrated that saccharin could induce an increase in weight gain either when compared to sucrose or to a non-sweetened control at a similar total caloric intake. These data raised the hypothesis that reduced energy expenditure (EE) could be a potential mechanism explaining greater weight gain with saccharin use in rats. The aim of the present study was to compare long-term energy expenditure at rest between rats using saccharin or sucrose and correlate it with weight gain...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28239404/impact-of-a-6-week-non-energy-restricted-ketogenic-diet-on-physical-fitness-body-composition-and-biochemical-parameters-in-healthy-adults
#2
Paul Urbain, Lena Strom, Lena Morawski, Anja Wehrle, Peter Deibert, Hartmut Bertz
BACKGROUND: The ketogenic diet (KD) is a very low-carbohydrate, high-fat and adequate-protein diet that without limiting calories induces different metabolic adaptations, eg, increased levels of circulating ketone bodies and a shift to lipid metabolism. Our objective was to assess the impact of a 6-week non-energy-restricted KD in healthy adults beyond cohorts of athletes on physical performance, body composition, and blood parameters. METHODS: Our single arm, before-and-after comparison study consisted of a 6-week KD with a previous preparation period including detailed instructions during classes and individual counselling by a dietitian...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28228715/central-nervous-insulin-administration-before-nocturnal-sleep-decreases-breakfast-intake-in-healthy-young-and-elderly-subjects
#3
João C P Santiago, Manfred Hallschmid
Peripheral insulin acts on the brain to regulate metabolic functions, in particular decreasing food intake and body weight. This concept has been supported by studies in humans relying on the intranasal route of administration, a method that permits the direct permeation of insulin into the CNS without substantial absorption into the blood stream. We investigated if intranasal insulin administration before nocturnal sleep, a period of reduced metabolic activity and largely absent external stimulation, affects food intake and energy turnover on the subsequent morning...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28211258/effects-of-a-wide-range-of-dietary-nicotinamide-riboside-nr-concentrations-on-metabolic-flexibility-and-white-adipose-tissue-wat-of-mice-fed-a-mildly-obesogenic-diet
#4
Wenbiao Shi, Maria A Hegeman, Dorien A M van Dartel, Jing Tang, Manuel Suarez, Hans Swarts, Bart van der Hee, Lluis Arola, Jaap Keijer
SCOPE: Metabolic flexibility is the ability to switch metabolism between carbohydrate oxidation (CHO) and fatty acid oxidation (FAO) and is a biomarker for metabolic health. The effect on metabolic health of nicotinamide riboside (NR) as an exclusive source of vitamin B3 is unknown and is examined here for a wide range of NR. DESIGN AND METHODS: Nine-week-old male C57BL/6JRcc mice received a semi-purified mildly obesogenic (40 en% fat) diet containing 0.14% L-tryptophan and either 5, 15, 30, 180 or 900 mg NR per kg diet for 15 weeks...
February 16, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28211029/influence-of-segmental-body-composition-and-adiposity-hormones-on-resting-metabolic-rate-and-substrate-utilization-in-overweight-and-obese-adults
#5
K R Hirsch, A E Smith-Ryan, M N M Blue, M G Mock, E T Trexler
PURPOSE: Low resting metabolic rate (RMR) and high carbohydrate reliance at rest are associated with weight gain, but are highly variable in obese individuals. This study determined the relationship of total and segmental body composition and adiposity hormones with RMR and respiratory exchange ratio (RER) in overweight and obese adults. METHODS: In 49 men (n = 23) and premenopausal women (n = 26) [mean ± SD; age = 35.0 ± 8.9 years; body mass index (BMI) = 33...
February 16, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28183446/genetic-ablation-of-phosphatidylcholine-transfer-protein-stard2-in-ob-ob-mice-improves-glucose-tolerance-without-increasing-energy-expenditure
#6
Tibor I Krisko, Katherine B LeClair, David E Cohen
OBJECTIVE: Phosphatidylcholine transfer protein (PC-TP; synonym StarD2) is highly expressed in liver and oxidative tissues. PC-TP promotes hepatic glucose production during fasting and aggravates glucose intolerance in high fat fed mice. However, because PC-TP also suppresses thermogenesis in brown adipose tissue (BAT), its direct contribution to obesity-associated diabetes in mice remains unclear. Here we examined the effects of genetic PC-TP ablation on glucose homeostasis in leptin-deficient ob/ob mice, which exhibit both diabetes and altered thermoregulation...
March 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28177732/determination-of-the-exercise-intensity-that-elicits-maximal-fat-oxidation-in-individuals-with-obesity
#7
Sune Dandanell, Charlotte Boslev Præst, Stine Dam Søndergård, Camilla Skovborg, Flemming Dela, Steen Larsen, Jørn Wulff Helge
Maximal fat oxidation (MFO) and the exercise intensity that elicits MFO (FatMax) are commonly determined by indirect calorimetry during graded exercise tests in both obese and normal weight individuals. However, no protocol has been validated in individuals with obesity. Thus, the aims were to develop a graded exercise protocol for determination of FatMax in individuals with obesity, and to test validity and inter-method reliability. Fat oxidation was assessed over a range of exercise intensities in 16 individuals (Age: 28 (26-29) years, BMI: 36 (35-38) kg m-2) (95%CI) on a cycle ergometer...
December 19, 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28163316/prediction-and-evaluation-of-resting-energy-expenditure-in-a-large-group-of-obese-outpatients
#8
M Marra, I Cioffi, R Sammarco, C Montagnese, M Naccarato, V Amato, F Contaldo, F Pasanisi
BACKGROUND/OBJECTIVES: The aim of this study was to compare resting energy expenditure (REE) measured (MREE) by indirect calorimetry (IC) and REE predicted (PREE) from established predictive equations in a large sample of obese Caucasian adults. SUBJECTS/METHODS: We evaluated 1851 obese patients (BMI>30 kg/m(2)) aged between 18-65 years. Data were obtained by comparing MREE with PREE, derived from different equations, within and between normal weight and obese groups...
February 6, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28162914/carrying-loads-validating-a-portable-tri-axial-accelerometer-during-frequent-and-brief-physical-activity
#9
G Zorrilla-Revilla, A Mateos, O Prado-Nóvoa, M Vidal-Cordasco, J Rodríguez
OBJECTIVES: The aim of this study is to evaluate the validity of the SenseWear Armband™ (SWA, Model MF-SW, BodyMedia Inc.) as a tool to assess daily brief, light- to moderate-intensity activities. DESIGN: A total of 41 volunteers were recruited (27 males, 14 females) to perform several trials, including a resting metabolic rate test and a number of walking trials while carrying different loads in a backpack. METHODS: Energy expenditure during trials was measured using both the SWA™ mini device, with the indirect calorimetry method (MasterScreen CPX and Oxycon Mobile JAEGER™ devices) used for validated comparative measurement...
January 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28159535/wrist-worn-triaxial-accelerometry-predicts-the-energy-expenditure-of-non-vigorous-daily-physical-activities
#10
Worawan Sirichana, Brett A Dolezal, Eric V Neufeld, Xiaoyan Wang, Christopher B Cooper
OBJECTIVES: Triaxial accelerometry is commonly used to estimate oxygen uptake (VO2) and energy expenditure in health and fitness studies. We tested the correlation of a triaxial accelerometer in terms of a summation of vector magnitudes with gravity subtracted (SVMgs) and measured VO2 for different daily physical activities. DESIGN: Original research, cross-sectional. METHODS: Twenty volunteers wore a triaxial accelerometer on both wrists while performing 12 assigned daily physical activities for 6min for each activity...
January 25, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28143668/resting-energy-expenditure-in-the-risk-assessment-of-anticancer-treatments
#11
Anne Jouinot, Clara Vazeille, Jean Philippe Durand, Olivier Huillard, Pascaline Boudou-Rouquette, Romain Coriat, Jeanne Chapron, Nathalie Neveux, Jean Pascal De Bandt, Jerome Alexandre, Luc Cynober, Francois Goldwasser
BACKGROUND & AIMS: Alterations of nutritional and performance status (PS) are associated with higher risk of chemotherapy toxicity. Increased resting energy expenditure (REE) is frequent in cancer patients and may contribute to cachexia. We investigated whether abnormal energetic metabolism could predict early acute limiting toxicities (ELT) of anticancer treatments. METHODS: In this observational monocentric study, REE was measured by indirect calorimetry before treatment initiation...
January 19, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28143666/measuring-energy-expenditure-in-extracorporeal-lung-support-patients-meep-protocol-feasibility-and-pilot-trial
#12
T Wollersheim, S Frank, M C Müller, V Skrypnikov, N M Carbon, P A Pickerodt, C Spies, K Mai, J Spranger, S Weber-Carstens
PURPOSE: Indirect calorimetry (IC) is the gold standard for measuring energy expenditure (EE). Due to O2 uptake and CO2 removal by both the extracorporeal lung support (ECLS) membrane and the lungs, a conventional IC is not feasible and no data available. Our MEEP (Measuring Energy Expenditure in ECLS Patients) protocol enables the determination of the REE in patients with ECLS, the comparison to patients without ECLS, and accuracy assessment of estimating equations. METHODS: In the MEEP protocol, a conventional IC is performed and extended by a calculation of the O2 uptake and the CO2 elimination by the ECLS membrane...
January 16, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28124948/comparing-steady-state-to-time-interval-and-non-steady-state-measurements-of-resting-metabolic-rate
#13
Chelsea Jayne Irving, Dennis L Eggett, Susan Fullmer
The 2 most common methods to determine resting metabolic rate (RMR) with indirect calorimetry are steady state (SS) and time intervals. Studies have suggested SS more accurately reflects RMR, but further research is needed. Our objective was to compare the bias, precision, and accuracy of SS to time intervals and non-SS measurements in a healthy adult population. Seventy-seven participants were measured for 45 minutes using a Quark RMR. Inclusion criteria included healthy participants aged 18-65 years. Pregnant and lactating women were excluded...
February 2017: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/28121799/compensatory-changes-in-energy-balance-regulation-over-one-athletic-season
#14
Analiza M Silva, Catarina N Matias, Diana A Santos, Diana Thomas, Anja Bosy-Westphal, Manfred J Müller, Steven B Heymsfield, Luís B Sardinha
PURPOSE: Mechanisms in energy balance (EB) regulation may include compensatory changes in energy intake (EI) and metabolic adaption (MA) but information is unavailable in athletes who often change EB components. We aim to investigate EB regulation compensatory mechanisms over one athletic season. METHODS: Fifty-seven athletes (39 males/18 females; handball, volleyball, basketball, triathlon, and swimming) were evaluated from the beginning to the competitive-phase of the season...
January 24, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28108105/performance-of-predictive-equations-specifically-developed-to-estimate-resting-energy-expenditure-in-ventilated-critically-ill-children
#15
Corinne Jotterand Chaparro, Patrick Taffé, Clémence Moullet, Jocelyne Laure Depeyre, David Longchamp, Marie-Hélène Perez, Jacques Cotting
OBJECTIVE: To determine, based on indirect calorimetry measurements, the biases of predictive equations specifically developed recently for estimating resting energy expenditure (REE) in ventilated critically ill children, or developed for healthy populations but used in critically ill children. STUDY DESIGN: A secondary analysis study was performed using our data on REE measured in a previous prospective study on protein and energy needs in pediatric intensive care unit...
January 18, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28107817/can-calculation-of-energy-expenditure-based-on-co2-measurements-replace-indirect-calorimetry
#16
Taku Oshima, Séverine Graf, Claudia-Paula Heidegger, Laurence Genton, Jérôme Pugin, Claude Pichard
BACKGROUND: Methods to calculate energy expenditure (EE) based on CO2 measurements (EEVCO2) have been proposed as a surrogate to indirect calorimetry. This study aimed at evaluating whether EEVCO2 could be considered as an alternative to EE measured by indirect calorimetry. METHODS: Indirect calorimetry measurements conducted for clinical purposes on 278 mechanically ventilated ICU patients were retrospectively analyzed. EEVCO2 was calculated by a converted Weir's equation using CO2 consumption (VCO2) measured by indirect calorimetry and assumed respiratory quotients (RQ): 0...
January 21, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28104917/overexpression-of-bone-morphogenetic-protein-3b-bmp-3b-in-adipose-tissues-protects-against-high-fat-diet-induced-obesity
#17
J Hino, M Nakatani, Y Arai, K Tsuchida, M Shirai, M Miyazato, K Kangawa
BACKGROUND: Bone morphogenetic protein-3b (BMP-3b) is a member of the transforming growth factor-β superfamily and has several activities that differ from those of other BMPs. We previously found that BMP-3b is highly expressed in adipocytes, its level is increased during obesity, and it inhibits adipogenesis by suppressing peroxisome proliferator-activated receptor γ (PPARγ) in vitro. However, the function of BMP-3b in adipose tissues in vivo remains unknown. METHODS: To determine the role of BMP-3b overexpression in adipose tissues in vivo, we generated transgenic mice (BMP-3b Tg) by using a conditional overexpression approach in fatty acid binding protein 4 (FABP4)-expressing adipocytes...
January 20, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28099336/prognostic-significance-of-nonprotein-respiratory-quotient-in-patients-with-liver-cirrhosis
#18
Hiroki Nishikawa, Hirayuki Enomoto, Yoshinori Iwata, Kyohei Kishino, Yoshihiro Shimono, Kunihiro Hasegawa, Chikage Nakano, Ryo Takata, Akio Ishii, Takashi Nishimura, Kazunori Yoh, Nobuhiro Aizawa, Yoshiyuki Sakai, Naoto Ikeda, Tomoyuki Takashima, Hiroko Iijima, Shuhei Nishiguchi
The aim of this study was to examine the effect of nonprotein respiratory quotient (npRQ), as assessed using indirect calorimetry, on clinical outcomes in patients with liver cirrhosis (LC). A total of 244 LC patients were evaluated in this study. For the univariate analysis, for each continuous variable, the optimal cutoff value that maximized the sum of sensitivity and specificity was selected using receiver operating curve (ROC) analysis for survival. There were 137 men and 107 women with the median (range) age of 67 (25-90) years...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28097839/nutritional-assessment-of-a-population-with-a-history-of-childhood-craniopharyngioma-seen-at-hospital-prof-dr-juan-p-garrahan
#19
Carolina Caminiti, Carola Saure, Ilanit Bomer, Mercedes Brea, Javier González Ramos
INTRODUCTION: Craniopharyngiomas are histologically benign malformations located between the pituitary and hypothalamus that may affect key hormone secretion for endocrine regulation and satiety modulation. Although this is a relatively benign disease, the combination of severe hypothalamic obesity and associated comorbidities results in a reduced quality of life. OBJECTIVE: To assess the nutritional status of patients after craniopharyngioma surgery. POPULATION AND METHODS: Patients younger than 21 years old at the time of the study who required craniopharyngioma surgery at Hospital de Pediatr...
1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28090638/late-gestational-intermittent-hypoxia-induces-metabolic-and-epigenetic-changes-in-male-adult-offspring-mice
#20
Abdelnaby Khalyfa, Rene Cortese, Zhuanhong Qiao, Honggang Ye, Riyue Bao, Jorge Andrade, David Gozal
Pregnancy, particularly late gestation, has been associated with a relatively high prevalence of obstructive sleep apnea (OSA). Intermittent hypoxia (IH), a hallmark of OSA, could impose significant long-term effects on somatic growth, energy homeostasis, and metabolic function in offspring. We hypothesized that IH during late pregnancy (LG-IH) may increase the propensity for metabolic dysregulation and obesity in adult offspring via epigenetic modifications. Time-pregnant female C57BL/6 mice were exposed to LG-IH or room air (LG-RA) during days 13-18 of gestation...
January 15, 2017: Journal of Physiology
keyword
keyword
30244
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"