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body plethysmography

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https://www.readbyqxmd.com/read/29163199/slow-breathing-can-be-operantly-conditioned-in-the-rat-and-may-reduce-sensitivity-to-experimental-stressors
#1
Donald J Noble, William N Goolsby, Sandra M Garraway, Karmarcha K Martin, Shawn Hochman
In humans, exercises involving slowed respiratory rate (SRR) counter autonomic sympathetic bias and reduce responses to stressors, including in individuals with various degrees of autonomic dysfunction. In the rat, we examined whether operant conditioning could lead to reductions in respiratory rate (RR) and performed preliminary studies to assess whether conditioned SRR was sufficient to decrease physiological and behavioral responsiveness to stressors. RR was continuously monitored during 20 2-h sessions using whole body plethysmography...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29148295/is-naloxone-the-best-antidote-to-reverse-tramadol-induced-neuro-respiratory-toxicity-in-overdose-an-experimental-investigation-in-the-rat
#2
Camille Lagard, Isabelle Malissin, Wassila Indja, Patricia Risède, Lucie Chevillard, Bruno Mégarbane
CONTEXT: Since the banning of dextropropoxyphene from the market, overdoses, and fatalities attributed to tramadol, a WHO step-2 opioid analgesic, have increased markedly. Tramadol overdose results not only in central nervous system (CNS) depression attributed to its opioid properties but also in seizures, possibly related to non-opioidergic pathways, thus questioning the efficiency of naloxone to reverse tramadol-induced CNS toxicity. OBJECTIVE: To investigate the most efficient antidote to reverse tramadol-induced seizures and respiratory depression in overdose...
November 17, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/29136614/impact-of-early-infant-growth-duration-of-breastfeeding-and-maternal-factors-on-total-body-fat-mass-and-visceral-fat-at-3-and-6-months-of-age
#3
Laura M Breij, Marieke Abrahamse-Berkeveld, Dennis Acton, Emanuella De Lucia Rolfe, Ken K Ong, Anita C S Hokken-Koelega
BACKGROUND: Accelerated gain in fat mass in the first months of life is considered to be a risk factor for adult diseases, given the tracking of infancy fat mass into adulthood. Our objective was to assess the influence of early growth, type of feeding and maternal variables on fat mass in early life. METHODS: In 300 healthy term infants, we longitudinally measured fat mass percentage (FM%) by air-displacement-plethysmography at 1, 3, and 6 months and abdominal visceral and subcutaneous fat measured by ultrasound at 3 and 6 months...
November 14, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/29136159/associations-between-maternal-lifestyle-factors-and-neonatal-body-composition-in-the-screening-for-pregnancy-endpoints-cork-cohort-study
#4
Darren L Dahly, Xia Li, Hazel A Smith, Ali S Khashan, Deirdre M Murray, Mairead E Kiely, Jonathan O'B Hourihane, Fergus P McCarthy, Louise C Kenny, Patricia M Kearney
Background: Neonatal body composition likely mediates fetal influences on life long chronic disease risk. A better understanding of how maternal lifestyle is related to newborn body composition could thus inform intervention efforts. Methods: Using Cork participant data (n = 1754) from the Screening for Pregnancy Endpoints (SCOPE) cohort study [ECM5(10)05/02/08], we estimated how pre-pregnancy body size, gestational weight gain, exercise, alcohol, smoking and diet were related to neonatal fat and fat-free mass, as well as length and gestational age at birth, using quantile regression...
November 10, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29130710/body-fat-percentage-comparisons-between-four-methods-in-young-football-players-are-they-comparable
#5
Gabriel Lozano Berges, Ángel Matute Llorente, Alejandro Gómez Bruton, Alejandro González Agüero, German Vicente Rodríguez, José Antonio Casajús
INTRODUCTION: Dual X-ray absorptiometry (DXA), air displacement plethysmography (ADP), bioelectrical impedance analysis (BIA) and anthropometry are four body composition methods that have been frequently used for the assessment of body fat percentage (%BF) in athletes. However, the agreement between these methods has not been studied yet in adolescent football players. OBJECTIVES: The aim of this study was to compare %BF calculated by DXA, ADP, BIA and anthropometry in 92 participants...
October 24, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/29130293/hand-to-foot-bioelectrical-impedance-analysis-to-measure-fat-mass-in-healthy-children-a-comparison-with-air-displacement-plethysmography
#6
Lisa Foucart, Annelies De Decker, Isabelle Sioen, Stefaan De Henauw, Nathalie Michels
AIM: To identify children at risk of overweight, assessing children's body composition in a valid way is crucial. The present cross-sectional study examines the comparability of children's fat mass percentage obtained by hand-to-foot bioelectrical impedance analysis (BIA) versus BodPod air-displacement plethysmography as a reference method. METHODS: The body composition of 206 Belgian children (7-13 years; 7.7% overweight) was measured with BodPod and hand-to-foot BIA (Tanita BC418 with built-in formula)...
November 2017: Nutrition & Dietetics: the Journal of the Dietitians Association of Australia
https://www.readbyqxmd.com/read/29089753/high-prevalence-of-copd-in-atherosclerosis-patients
#7
Izabela Tuleta, Tarik Farrag, Laura Busse, Carmen Pizarro, Christian Schaefer, Simon Pingel, Georg Nickenig, Dirk Skowasch, Nadjib Schahab
Atherosclerosis and COPD are both systemic inflammatory diseases that may influence each other. The aim of the present study was to determine the prevalence of COPD in patients with cerebral and/or peripheral artery disease and to assess factors associated with the presence of COPD. Following the diagnosis of cerebral and/or peripheral artery disease by means of duplex sonography, 166 consecutive patients underwent body plethysmography with capillary blood gas analysis. Thereafter, blood tests with determination of different parameters such as lipid profile, inflammatory and coagulation markers were conducted in remaining 136 patients who fulfilled inclusion criteria of the study...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29074702/respiratory-consequences-of-targeted-losses-of-hoxa5-gene-function-in-mice
#8
Kim Landry-Truchon, Stéphanie Fournier, Nicolas Houde, Jean-Philippe Rousseau, Lucie Jeannotte, Richard Kinkead
Fetal development of the respiratory tract and diaphragm requires strict coordination between genetically controlled signals and mechanical forces produced by the neural network that generates breathing. Being expressed in the mesenchyme of trachea, lung and diaphragm, and in phrenic motoneurons HOXA5 is a key transcription factor regulating lung development and function. Consequently, most Hoxa5(-/-) mutants die at birth from respiratory failure. However, the extensive effect of the null mutation makes it difficult to identify the origins of respiratory dysfunction in newborns...
October 26, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29071103/definition-of-new-cut-offs-of-bmi-and-waist-circumference-based-on-body-composition-and-insulin-resistance-differences-between-children-adolescents-and-adults
#9
M Hübers, M Pourhassan, W Braun, C Geisler, M J Müller
OBJECTIVE: This study aims to determine associations between anthropometric traits, regional fat depots and insulin resistance in children, adolescents and adults to define new cut-offs of body mass index (BMI) or waist circumference (WC). DESIGN: Cross-sectional data were assessed in 433 children, adolescents and adults (aged: 6-60 years, BMI: 23.6 [21.0-27.7] kg m(-2)). Total adipose tissue (TAT), regional subcutaneous adipose tissue (SATtotal, SATtrunk) and visceral adipose tissue (VAT) were determined by whole-body magnetic resonance imaging, fat mass by air-displacement plethysmography...
September 2017: Obesity Science & Practice
https://www.readbyqxmd.com/read/29057330/validation-of-a-white-light-3d-body-volume-scanner-to-assess-body-composition
#10
Jose Medina-Inojosa, Virend Somers, Sarah Jenkins, Jennifer Zundel, Lynne Johnson, Chassidy Grimes, Francisco Lopez-Jimenez
INTRODUCTION: Estimating body fat content has shown to be a better predictor of adiposity-related cardiovascular risk than the commonly used body mass index (BMI). The white-light 3D body volume index (BVI) scanner is a non-invasive device normally used in the clothing industry to assess body shapes and sizes. We assessed the hypothesis that volume obtained by BVI is comparable to the volume obtained by air displacement plethysmography (Bod-Pod) and thus capable of assessing body fat mass using the bi-compartmental principles of body composition...
2017: Obesity, Open Access
https://www.readbyqxmd.com/read/29041888/-diffusion-capacity-of-the-lung-and-maladaptive-post-infarction-remodeling-of-the-heart
#11
N V Karetnikova, L O Barbarash, V M Katsyuba, M O Polikutina, S Y Slepynina
OBJECTIVE: To assess the association of the lowering of diffusion capacity of the lung and maladaptive remodeling of the heart in a year after myocardial infarction (MI). MATERIALS AND METHODS: We included into this study 107 patients with ST elevation MI (STEMI). Examination of all patients on 7-12 th days included echocardiography (echoCG), spirography, body plethysmography, and determination of lung diffusion capacity. After one year of observation in 87 patients (81...
August 2017: Kardiologiia
https://www.readbyqxmd.com/read/29039839/-the-role-of-integrated-assessment-of-the-indicators-of-external-respiration-function-in-cardiac-surgical-patients
#12
O V Kamenskaja, A S Klinkova, I Ju Loginova, V V Lomivorotov, D N Ponomarev, D V Habarov, V N Lomivorotov
This literature review dedicated to the importance of an integrated assessment of external respiratory function in cardiovascular diseases (CVDs), including an analysis of up-to-date techniques, such as spirometry, body plethysmography, examination of the diffusing capacity of the lung, determination of O2 consumption with evaluation of the effectiveness of pulmonary ventilation. It considers the pathogenetic components of impairments in pulmonary ventilation and gas exchange, which develop in different CVDs, as well as during and after cardiac surgery...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/29032859/the-effect-of-maternal-dha-supplementation-on-body-fat-mass-in-children-at-7-years-follow-up-of-the-domino-randomized-controlled-trial
#13
K Wood, E Mantzioris, B Lingwood, J Couper, M Makrides, R A Gibson, B S Muhlhausler
BACKGROUND: Animal studies have suggested that an increased supply of omega-3 long chain polyunsaturated fatty acids (LCPUFA), in particular docosahexaenoic acid (DHA), during the perinatal period can prevent later excess body fat mass. However, previous human studies have produced inconsistent findings, and few have assessed potential effects beyond 6 years of age. OBJECTIVE: To evaluate the effect of supplementing women in the second half of pregnancy with omega-3 LCPUFA, chiefly as DHA, on the percentage body fat of children at 7 years of age, as assessed by two methods: air displacement plethysmography (BOD POD) and bioelectrical impedance spectroscopy (BIS)...
September 22, 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/29024557/body-composition-measurement-in-young-children-using-quantitative-magnetic-resonance-a-comparison-with-air-displacement-plethysmography
#14
L-W Chen, M-T Tint, M V Fortier, I M Aris, L P-C Shek, K H Tan, V S Rajadurai, P D Gluckman, Y-S Chong, K M Godfrey, M S Kramer, C J Henry, F Yap, Y S Lee
BACKGROUND: Quantitative magnetic resonance (QMR) has been increasingly used to measure human body composition, but its use and validation in children is limited. OBJECTIVE: We compared body composition measurement by QMR and air displacement plethysmography (ADP) in preschool children from Singapore's multi-ethnic Asian population (n = 152; mean ± SD age: 5.0 ± 0.1 years). METHODS: Agreements between QMR-based and ADP-based fat mass and fat mass index (FMI) were assessed using intraclass correlation coefficient (ICC), reduced major axis regression and Bland-Altman plot analyses...
October 12, 2017: Pediatric Obesity
https://www.readbyqxmd.com/read/29020072/correcting-for-tissue-nitrogen-excretion-in-multiple-breath-washout-measurements
#15
Mica Kane, Jonathan H Rayment, Renee Jensen, Reginald McDonald, Sanja Stanojevic, Felix Ratjen
Nitrogen excreted from body tissues impacts the calculation of multiple breath nitrogen washout (MBWN2) outcomes. The aim of this study was to determine the effect of tissue N2 on MBWN2 outcomes in both healthy subjects and patients with CF and to assess whether it is possible to correct for tissue N2. The contribution of tissue N2 to MBWN2 outcomes was estimated by comparing MBWN2-derived functional residual capacity (FRCN2) to FRC measured by body plethysmography (FRCpleth) and by comparing MBW outcome measures derived from MBWN2 and sulfur hexafluoride MBW (MBWSF6)...
2017: PloS One
https://www.readbyqxmd.com/read/28990589/which-anthropometric-measures-best-reflect-neonatal-adiposity
#16
L-W Chen, M-T Tint, M V Fortier, I M Aris, Lp-C Shek, K H Tan, S-Y Chan, P D Gluckman, Y-S Chong, K M Godfrey, V S Rajadurai, F Yap, M S Kramer, Y S Lee
BACKGROUND: Studying the determinants and the long-term consequences of fetal adipose accretion requires accurate assessment of neonatal body composition. In large epidemiological studies, in-depth body composition measurement methods are usually not feasible for cost and logistical reasons, and there is a need to identify anthropometric measures that adequately reflect neonatal adiposity. METHODS: In a multiethnic Asian mother-offspring cohort in Singapore, anthropometric measures (weight, length, abdominal circumference, skinfold thicknesses) were measured using standardized protocols in newborn infants, and anthropometric indices [weight/length, weight/length(2) (body mass index, BMI), weight/length(3) (ponderal index, PI)] derived...
October 9, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28975398/pulse-wave-travel-distance-as-a-novel-marker-of-ventricular-arterial-coupling
#17
Yurie Obata, Pavel Ruzankin, Allan Gottschalk, Daniel Nyhan, Dan E Berkowitz, Jochen Steppan, Viachaslau Barodka
Each stroke volume ejected by the heart is distributed along the arterial system as a pressure waveform. How far the front of the pressure waveform travels within the arterial system depends both on the pulse wave velocity (PWV) and the ejection time (ET). We tested the hypothesis that ET and PWV are coupled together, in order to produce a pulse wave travel distance (PWTD = PWV × ET) which would match the distance from the heart to the most distant site in the arterial system. The study was conducted in 11 healthy volunteers...
October 3, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28965570/oral-copper-absorption-in-men-with-morbid-obesity
#18
Joseph Boullata, Geetha Muthukumaran, Amanda Piarulli, John Labarre, Charlene Compher
Copper deficiency has been reported in patients with severe obesity, both before and after bariatric surgery, the latter at increased rates. However, little is known about the absorption of copper. Because of differences in copper dynamics between men and women in the limited available data, we evaluated copper absorption in men who were candidates for bariatric surgery. All patients gave informed consent, approved by the University of Pennsylvania Institutional Review Board, to participate in a pharmacokinetics study...
December 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28953532/can-basic-characteristics-estimate-body-composition-in-early-infancy
#19
Liotto Nadia, Paola Roggero, Beatrice Bracco, Camilla Menis, Daniela Morniroli, Michela Perrone, Maria Lorella Giannì, Fabio Mosca
OBJECTIVES: Increasing evidence demonstrates that body composition in early life contributes to the programming of health later in life in both full-term and preterm infants. Given the important role of body composition, the increased availability of easy, non-invasive and accurate techniques for its assessment has been recommended. The aim of the present study was to identify basic characteristics and anthropometric measurements that best correlate with body composition in infants. METHODS: Anthropometric measurements and body composition assessed by air-displacement plethysmography were assessed either at birth or at term-corrected age in 1239 infants (654 full-term, 585 preterm)...
September 26, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28952606/relation-between-body-composition-at-birth-and-child-development-at-2-years-of-age-a-prospective-cohort-study-among-ethiopian-children
#20
M Abera, M Tesfaye, T Girma, C Hanlon, G S Andersen, J C Wells, B Admassu, R Wibaek, H Friis, P Kæstel
BACKGROUND/OBJECTIVES: Birth weight (BW), independent of socioeconomic status, has been identified as a predictor for childhood cognitive development. However, it is not known whether this relation is related to low BW per se or particularly related to a deficit in fat mass (FM) or fat-free mass (FFM) at birth. This study therefore aimed at investigating the relation between body composition at birth and child development at 2 years of age. SUBJECTS/METHODS: An Ethiopian birth cohort was followed up at 2 years...
September 27, 2017: European Journal of Clinical Nutrition
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