keyword
MENU ▼
Read by QxMD icon Read
search

body plethysmography

keyword
https://www.readbyqxmd.com/read/29345019/a-vascular-mechanism-to-explain-thermally-mediated-variations-in-deep-body-cooling-rates-during-the-immersion-of-profoundly-hyperthermic-individuals
#1
Joanne N Caldwell, Anne M J van den Heuvel, Pete Kerry, Mitchell J Clark, Gregory E Peoples, Nigel A S Taylor
Physiologically trivial time differences for cooling the intrathoracic viscera of hyperthermic individuals have been reported between cold- and temperate-water immersion treatments. One explanation for that observation is reduced convective heat delivery to the skin during cold immersion, and this experiment was designed to test both the validity of that observation, and its underlying hypothesis. Eight healthy males participated in four head-out, water immersions: two when normothermic, and two following exercise-induced, moderate-profound hyperthermia...
January 18, 2018: Experimental Physiology
https://www.readbyqxmd.com/read/29330797/testing-acute-oxygen-sensing-in-genetically-modified-mice-plethysmography-and-amperometry
#2
Patricia Ortega-Sáenz, Candela Caballero, Lin Gao, José López-Barneo
Monitoring responsiveness to acute hypoxia of whole animals and single cells is essential to investigate the nature of the mechanisms underlying oxygen (O2) sensing. Here we describe the protocols followed in our laboratory to evaluate the ventilatory response to hypoxia in normal and genetically modified animals. We also describe the amperometric technique used to monitor single-cell catecholamine release from chemoreceptor cells in carotid body and adrenal medulla slices.
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29324378/impact-evaluation-of-environmental-factors-on-respiratory-function-of-asthma-patients-living-in-urban-territory
#3
Lyudmila V Veremchuk, Konstantinos Tsarouhas, Tatyana I Vitkina, Elena E Mineeva, Tatyana A Gvozdenko, Marina V Antonyuk, Valeri N Rakitskii, Karolina A Sidletskaya, Aristidis M Tsatsakis, Kirill S Golokhvast
BACKGROUND: Environmental pollution, local climatic conditions and their association with the prevalence and exacerbation of asthma are topics of intense current medical investigation. MATERIALS AND METHODS: Air pollution in the area of Vladivostock was estimated both by the index of emission volumes of "air gaseous components" (nitrogen oxide and nitrogen dioxide, formaldehyde, hydrogen sulfide, carbon monoxide) in urban atmosphere and by mass spectrometric analysis of precipitates in snow samples...
January 8, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29322217/-functional-diagnostics-in-pneumology
#4
REVIEW
M Held, S Baron, B Jany
Alongside imaging techniques, pulmonary function testing helps in the diagnosis of underlying disorders such as asthma and chronic obstructive pulmonary disease (COPD) or fibrosing lung disease. However, disease severity grading is also important, as well as disease follow-up under therapy. The value of spirometry as a first-line diagnostic test, whole-body plethysmography in advanced diagnostics, the measurement of transfer factor, as well as blood gas analysis are outlined. The importance of spiroergometry, echocardiography, and right-heart catheterization, particularly in the functional assessment of pulmonary vascular disorders, is described...
January 10, 2018: Der Internist
https://www.readbyqxmd.com/read/29308071/positive-correlation-of-airway-resistance-and-serum-asymmetric-dimethylarginine-adma-in-bronchial-asthma-patients-lacking-evidence-for-systemic-inflammation
#5
Gabor Tajti, Csaba Papp, Laszlo Kardos, Sandor Keki, Krisztian Pak, Magdolna Emma Szilasi, Rudolf Gesztelyi, Angela Mikaczo, Andrea Fodor, Maria Szilasi, Judit Zsuga
Background: Contribution of nitric-oxide (NO) pathway to the pathogenesis of bronchial asthma (asthma) is ambiguous as NO may confer both protective and detrimental effects depending on the NO synthase (NOS) isoforms, tissue compartments and underlying pathological conditions (e.g. systemic inflammation). Asymmetric dimethylarginine (ADMA) is an endogenous inhibitor and uncoupler of NOS with distinct selectivity for NOS isoforms. In a cross-sectional study, we assessed whether ADMA is an independent predictor of airway resistance (Raw) in therapy-controlled asthma...
2018: Allergy, Asthma, and Clinical Immunology
https://www.readbyqxmd.com/read/29282434/the-inspired-sinewave-technique-a-comparison-study-with-body-plethysmography-in-healthy-volunteers
#6
Phi Anh Phan, Cathy Zhang, Daniel Geer, Federico Formenti, Clive E W Hahn, Andrew D Farmery
The inspired sinewave technique is a noninvasive method to measure airway dead space, functional residual capacity, pulmonary blood flow, and lung inhomogeneity simultaneously. The purpose of this paper was to assess the repeatability and accuracy of the current device prototype in measuring functional residual capacity, and also participant comfort when using such a device. To assess within-session repeatability, six sinewave measurements were taken over two-hour period in 17 healthy volunteers. To assess day-to-day repeatability, measurements were taken over 16 days in 3 volunteers...
2017: IEEE Journal of Translational Engineering in Health and Medicine
https://www.readbyqxmd.com/read/29276221/effects-of-postprandial-body-position-on-gastrointestinal-motility-the-autonomic-nervous-system-and-subjective-comfort
#7
Ayaka Okano, Shun Masuhara, Sonoka Ota, Chie Motegi, Noriko Takabayashi, Tetsuya Ogino
We examined postprandial body positions' effects on gastrointestinal motility, the autonomic nervous system and subjective comfort, i.e., whether lowering the head after a meal is beneficial for gastrointestinal motility and the prevention of pressure ulcer. We examined 10 healthy subjects and compared 3 body positions: (1) Seated upright. (2) Lying on a bed with the head at 60° and knees up by 20° (60° position). (3) Identical to (2) until post-meal; the head was then lowered to 30° (60°-30° position)...
December 2017: Acta Medica Okayama
https://www.readbyqxmd.com/read/29251003/the-physiology-and-toxicology-of-acute-inhalation-phosphine-poisoning-in-conscious-male-rats
#8
Benjamin Wong, Rebecca Lewandowski, Justin Tressler, Katherine Sherman, Jaclynn Andres, Jennifer Devorak, Cristin Rothwell, Tracey Hamilton, Heidi Hoard-Fruchey, Alfred M Sciuto
Phosphine (PH3) is a toxidrome-spanning chemical that is widely used as an insecticide and rodenticide. Exposure to PH3 causes a host of target organ and systemic effects, including oxidative stress, cardiopulmonary toxicity, seizure-like activity and overall metabolic disturbance. A custom dynamic inhalation gas exposure system was designed for the whole-body exposure of conscious male Sprague-Dawley rats (250-350 g) to PH3. An integrated plethysmography system was used to collect respiratory parameters in real-time before, during and after PH3 exposure...
December 18, 2017: Inhalation Toxicology
https://www.readbyqxmd.com/read/29244836/energy-compensation-after-sprint-and-high-intensity-interval-training
#9
Matthew M Schubert, Elyse Palumbo, Rebekah F Seay, Katie K Spain, Holly E Clarke
BACKGROUND: Many individuals lose less weight than expected in response to exercise interventions when considering the increased energy expenditure of exercise (ExEE). This is due to energy compensation in response to ExEE, which may include increases in energy intake (EI) and decreases in non-exercise physical activity (NEPA). We examined the degree of energy compensation in healthy young men and women in response to interval training. METHODS: Data were examined from a prior study in which 24 participants (mean age, BMI, & VO2max = 28 yrs, 27...
2017: PloS One
https://www.readbyqxmd.com/read/29217995/the-alteration-of-irisin-brain-derived-neurotrophic-factor-axis-parallels-severity-of-distress-disorder-in-bronchial-asthma-patients
#10
Magdolna E Szilasi, Krisztian Pak, Laszlo Kardos, Viktoria E Varga, Ildiko Seres, Angela Mikaczo, Andrea Fodor, Maria Szilasi, Gabor Tajti, Csaba Papp, Rudolf Gesztelyi, Judit Zsuga
Distress disorder (a collective term for generalized anxiety disorder and major depressive disorder) is a well-known co-morbidity of bronchial asthma. The irisin-brain-derived neurotrophic factor (BDNF) axis is a pathway that influences several neurobehavioral mechanisms involved in the pathogenesis of distress disorder. Thus, the aim of the present study was to quantify the serum irisin and BDNF concentrations in order to investigate the possible link between the irisin/BDNF axis and distress disorder in an asthma patient cohort...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29208759/the-role-of-multidetector-computed-tomography-and-the-forced-oscillation-technique-in-assessing-lung-damage-in-adults-with-cystic-fibrosis
#11
Letícia S Lacerda, Agnaldo J Lopes, Alysson R S Carvalho, Alan R M Guimarães, Mônica C Firmida, Marcos C S Castro, Roberto Mogami, Pedro L Melo
BACKGROUND: With increased survival rates and the consequent emergence of an adult population with cystic fibrosis (CF), developing novel tools for periodic evaluations of these patients has become a new challenge. Thus, we sought to determine the contribution of lung-volume quantification using multidetector computed tomography (CT) in adults with CF and to investigate the association between structural changes and functional abnormalities. METHODS: This was a cross-sectional study in which 21 adults with CF and 22 control subjects underwent lung-volume quantification using multidetector CT...
December 5, 2017: Respiratory Care
https://www.readbyqxmd.com/read/29208534/loss-of-cdkl5-disrupts-respiratory-function-in-mice
#12
Kun-Ze Lee, Wenlin Liao
Cyclin-dependent kinase-like 5 (CDKL5) is an X-linked gene encoding a serine-threonine kinase that is highly expressed in the central nervous system. Mutations in CDKL5 cause neurological and psychiatric symptoms, including early-onset seizures, motor dysfunction, autistic features and sleep breathing abnormalities in patients. It remains to be addressed whether loss of CDKL5 causes respiratory dysfunction in mice. Here, we examined the respiratory pattern of male Cdkl5-/y mice at 1-3 months of age during resting breathing and respiratory challenge (i...
December 2, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/29196482/do-changing-levels-of-maternal-exercise-during-pregnancy-affect-neonatal-adiposity-secondary-analysis-of-the-babies-after-scope-evaluating-the-longitudinal-impact-using-neurological-and-nutritional-endpoints-baseline-birth-cohort-cork-ireland
#13
Tom Norris, Fergus P McCarthy, Ali S Khashan, Deidre M Murray, Mairead Kiely, Jonathan O'B Hourihane, Philip N Baker, Louise C Kenny
OBJECTIVE: To investigate whether changing levels of exercise during pregnancy are related to altered neonatal adiposity. DESIGN: Secondary analysis of data from a prospective cohort study. SETTING: Cork, Ireland. PARTICIPANTS: 1200 mother - infant pairs recruited as part of a prospective birth cohort, Babies After SCOPE: Evaluating the Longitudinal Impact Using Neurological and Nutritional Endpoints (BASELINE). MAIN OUTCOME MEASURES: Neonatal adiposity was assessed within several days of birth using air displacement plethysmography (PEAPOD)...
December 1, 2017: BMJ Open
https://www.readbyqxmd.com/read/29189580/comparison-of-body-composition-variables-across-a-large-sample-of-ncaa-women-athletes-from-six-competitive-sports
#14
Jennifer B Fields, Casey J Metoyer, Jason C Casey, Michael R Esco, Andrew R Jagim, Margaret T Jones
Body composition (BC) plays a critical role in sport performance and athlete health. Body size and BC have been widely studied in men's sports, with reported changes observed over time. However, a paucity of current data exists in women athletes. The purpose of the current descriptive study was to measure and compare BC data for collegiate women athletes from six competitive sports. A total of 524 athletes from two NCAA institutions participated: basketball (BB; n = 95), gymnastics (GYM; n = 42), lacrosse (LAX; n = 81), rowing (ROW; n = 57), soccer (SOC; n = 188), and volleyball (VB; n = 61)...
November 16, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29186492/mechanisms-of-acid-base-regulation-in-peritoneal-dialysis
#15
Amadou Sow, Johann Morelle, Nicolas Hautem, Carla Bettoni, Carsten A Wagner, Olivier Devuyst
Background: Peritoneal dialysis (PD) contributes to restore acid-base homeostasis in patients with end-stage renal disease. The transport pathways for buffers and carbon dioxide (CO2) across the peritoneal membrane remain poorly understood. Methods: Combining well-established PD protocols, whole-body plethysmography and renal function studies in mice, we investigated molecular mechanisms of acid-base regulation in PD, including the potential role of the water channel aquaporin-1 (AQP1)...
November 22, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29168593/respiratory-regulation-by-steroids-in-newborn-rats-a-sex-specific-balance-between-allopregnanolone-and-progesterone-receptors
#16
Vincent Joseph, NagaPraveena Uppari, Hayet Kouchi, Celia De Bruyn, Ryma Boukari, Aida Bairam
What is the central question of this study? What are the contributions of allopregnanolone, the neuroactive metabolite of progesterone, and nuclear (nPR) and membrane (mPR) progesterone receptors to the respiratory effect of progesterone in newborn rats? What is the main finding and its importance? Acute progesterone injection increases the apnoea frequency, whereas finasteride (which blocks the conversion of progesterone to allopregnanolone) reduces apnoea frequency. An nPR agonist decreases apnoea frequency in males and an mPR agonist decreases apnoea frequency in males and females...
November 23, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/29163199/slow-breathing-can-be-operantly-conditioned-in-the-rat-and-may-reduce-sensitivity-to-experimental-stressors
#17
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
#18
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
#19
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
#20
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
keyword
keyword
27466
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"