keyword
MENU ▼
Read by QxMD icon Read
search

obesity lung function

keyword
https://www.readbyqxmd.com/read/29684318/does-size-matter-when-calculating-the-correct-tidal-volume-for-pediatric-mechanical-ventilation-a-hypothesis-based-on-forced-vital-capacity
#1
Gina J Kim, Christopher J L Newth, Robinder G Khemani, Suzy L Wong, Allan L Coates, Patrick A Ross
BACKGROUND: Tidal volumes standardized to predicted body weight are recommended for adult mechanical ventilation, but children are frequently ventilated using measured body weight. Our goal is to examine the difference in forced vital capacity (FVC ml/kg) using measured compared to predicted body weight in children. METHODS: Retrospective analysis of outpatient pulmonary function tests (PFTs) from two datasets. Dataset one: 6 to 19 year old children undergoing PFTs from the nationally-representative Canadian Health Measures Survey...
April 20, 2018: Chest
https://www.readbyqxmd.com/read/29671629/impaired-left-ventricular-filling-is-associated-with-decreased-pulse-oximetry-values
#2
Lene Gjelseth Dalbak, Henrik Schirmer, Jørund Straand, Ibrahimu Mdala, Ole Geir Solberg, Hasse Melbye
OBJECTIVES: The aim of this study was to investigate the association between echocardiographic measures of diastolic left ventricular dysfunction and decreased arterial oxyhaemoglobin saturation measured with pulse oximetry (SpO2 ). DESIGN: This is a cross-sectional population-based survey of Norwegian adults. Values obtained using echocardiography, pulse oximetry, and spirometry were included. The primary outcome was abnormal mitral Doppler inflow, defined as normal: E/A ratio 0...
April 19, 2018: Scandinavian Cardiovascular Journal: SCJ
https://www.readbyqxmd.com/read/29663179/the-impact-of-obesity-on-pulmonary-deterioration-in-patients-undergoing-robotic-assisted-laparoscopic-prostatectomy
#3
Sebastian Blecha, Marion Harth, Florian Zeman, Timo Seyfried, Matthias Lubnow, Maximilian Burger, Stefan Denzinger, Michael T Pawlik
Obesity affects respiratory and hemodynamic function in anesthetized patients. The aim of this study was to evaluate the influence of the body mass index (BMI) on pulmonary changes in a permanent 45° steep Trendelenburg position (STP) during robotic-assisted laparoscopic prostatectomy (RALP). 51 patients undergoing RALP under standardized anesthesia were included. Perioperative pulmonary function and oxygenation were measured in awake patients (T0 ), 20 min after the induction of anesthesia (T1 ), after insufflation of the abdomen in supine position (T2 ), after 30 min in STP (T3 ), when controlling Santorini's plexus in STP (T4 ), before awakening while supine (T5 ), and after 45 min in the recovery room (T6 )...
April 16, 2018: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/29627041/obesity-and-asthma
#4
REVIEW
Ubong Peters, Anne E Dixon, Erick Forno
Obesity is a vast public health problem and both a major risk factor and disease modifier for asthma in children and adults. Obese subjects have increased asthma risk, and obese asthmatic patients have more symptoms, more frequent and severe exacerbations, reduced response to several asthma medications, and decreased quality of life. Obese asthma is a complex syndrome, including different phenotypes of disease that are just beginning to be understood. We examine the epidemiology and characteristics of this syndrome in children and adults, as well as the changes in lung function seen in each age group...
April 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29608145/intraperitoneal-glucose-tolerance-test-measurement-of-lung-function-and-fixation-of-the-lung-to-study-the-impact-of-obesity-and-impaired-metabolism-on-pulmonary-outcomes
#5
Katharina Dinger, Jasmine Mohr, Christina Vohlen, Dharmesh Hirani, Eva Hucklenbruch-Rother, Regina Ensenauer, Jörg Dötsch, Miguel A Alejandre Alcazar
Obesity and respiratory disorders are major health problems. Obesity is becoming an emerging epidemic with an expected number of over 1 billion obese individuals worldwide by 2030, thus representing a growing socioeconomic burden. Simultaneously, obesity-related comorbidities, including diabetes as well as heart and chronic lung diseases, are continuously on the rise. Although obesity has been associated with increased risk for asthma exacerbations, worsening of respiratory symptoms, and poor control, the functional role of obesity and perturbed metabolism in the pathogenesis of chronic lung disease is often underestimated, and underlying molecular mechanisms remain elusive...
March 15, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29605211/spirometric-impairments-cardiovascular-outcomes-and-noncardiovascular-death-in-older-persons
#6
Carlos A Vaz Fragoso, Peter H Van Ness, Terrence E Murphy, Gail J McAvay
BACKGROUND: In prior work involving older persons, the reported associations of spirometric impairments with cardiovascular outcomes may have been confounded by age-related changes in lung function. Hence, using more age-appropriate spirometric criteria from the Global Lung Function Initiative (GLI), we have evaluated the associations of spirometric impairments, specifically restrictive-pattern and airflow-obstruction, with cardiovascular death (CV-death) and hospitalization (CV-hospitalization)...
April 2018: Respiratory Medicine
https://www.readbyqxmd.com/read/29589109/prevalence-and-associated-factors-of-preoperative-functional-disability-in-elective-surgical-patients-over-55-years-old-a-prospective-cohort-study
#7
Mitsuru Ida, Yusuke Naito, Yasunori Matsunari, Yuu Tanaka, Satoki Inoue, Masahiko Kawaguchi
PURPOSE: In preoperative settings, patients may have functional disabilities due to the disease for which surgery is being performed or comorbidities, but the associated and predictive factors remain unknown. This study examined the prevalence of preoperative functional disability and clarified the associated factors. METHODS: Individuals aged ≥ 55 years who were scheduled to undergo surgery in a tertiary-care hospital in Japan between April 2016 and September 2016 were eligible for enrolment in the study...
March 27, 2018: Journal of Anesthesia
https://www.readbyqxmd.com/read/29574856/hu-deviation-in-lung-and-bone-tissues-characterization-and-a-corrective-strategy
#8
Hua A Ai, Joseph G Meier, Richard E Wendt
INTRODUCTION: In the era of precision medicine, quantitative applications of x-ray Computed Tomography (CT) are on the rise. These require accurate measurement of the CT number, also known as the Hounsfield Unit. In this study, we evaluated the effect of patient attenuation-induced beam hardening of the x-ray spectrum on the accuracy of the HU values and a strategy to correct for the resulting deviations in the measured HU values. MATERIALS AND METHODS: A CIRS electron density phantom was scanned on a Siemens Biograph mCT Flow CT scanner and a GE Discovery 710 CT scanner using standard techniques that are employed in the clinic to assess the HU deviation caused by beam hardening in different tissue types...
March 24, 2018: Medical Physics
https://www.readbyqxmd.com/read/29565180/ablation-of-the-leptin-receptor-in-myeloid-cells-impairs-pulmonary-clearance-of-streptococcus-pneumoniae-and-alveolar-macrophage-bactericidal-function
#9
Peter Mancuso, Jeffrey L Curtis, Christine M Freeman, Marc Peters-Golden, Jason B Weinberg, Martin G Myers
Leptin is a pleiotropic hormone produced by white adipose tissue that regulates appetite and many physiologic functions including the immune response to infection. Genetic leptin deficiency in humans and mice impairs host defenses against respiratory tract infections. Since leptin deficiency is associated with obesity and other metabolic abnormalities, we generated mice that lack the leptin receptor (LepRb) in cells of the myeloid linage (LysM-LepRb-KO) to evaluate its impact in lean metabolically normal mice in a murine model of pneumococcal pneumonia...
March 22, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29561930/improvement-in-lung-function-and-functional-capacity-in-morbidly-obese-women-subjected-to-bariatric-surgery
#10
Elaine Cristina de Campos, Fabiana Sobral Peixoto-Souza, Viviane Cristina Alves, Renata Basso-Vanelli, Marcela Barbalho-Moulim, Rafael Melillo Laurino-Neto, Dirceu Costa
OBJECTIVE: To determine whether weight loss in women with morbid obesity subjected to bariatric surgery alters lung function, respiratory muscle strength, functional capacity and the level of habitual physical activity and to investigate the relationship between these variables and changes in both body composition and anthropometrics. METHODS: Twenty-four women with morbid obesity were evaluated with regard to lung function, respiratory muscle strength, functional capacity, body composition, anthropometrics and the level of habitual physical activity two weeks prior to and six months after bariatric surgery...
March 15, 2018: Clinics
https://www.readbyqxmd.com/read/29557605/the-impact-of-obesity-on-specific-airway-resistance-and-conductance-among-schoolchildren
#11
Andrea Parraguez Arévalo, Francisco Rojas Navarro, Macarena Ruz Céspedes, Paul Medina González, Máximo Escobar Cabello, Rodrigo Muñoz Cofré
INTRODUCTION: Child and adolescent obesity is an epidemiological problem in developing countries. Its prevalence among preschoolers and schoolchildren is over 30%. It has been associated with a wide range of health complications, including rapid loss of lung function leading to changes in physiology and ventilatory mechanics. The objective of this study was to analyze the association between obesity and the increase in specific airway resistance (sRaw) in a sample of obese children and adolescents from the district of Talca...
April 1, 2018: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/29524411/leptin-promotes-pulmonary-fibrosis-development-by-inhibiting-autophagy-via-pi3k-akt-mtor-pathway
#12
Xianhua Gui, Lingyun Sun, Luo Gu, Hourong Cai, Hongwei Chen
Leptin, a protein-related product of the obesity gene, plays an important role in the pathogenesis of fibrotic diseases including pulmonary fibrosis. As a highly conservative process, autophagy regulates various biological functions. Otherwise, insufficient autophagy has been described in alveolar epithelial cells (AEC) to cope with the progression of pulmonary fibrosis. Hence, this study is to investigate the effects of leptin on fibrosis in TGF-β1 induced epithelial mesenchymal transition (EMT) and the potential roles of autophagy in this processes...
March 7, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29496283/factors-affecting-lung-function-a-review-of-the-literature
#13
Alejandro Talaminos Barroso, Eduardo Márquez Martín, Laura María Roa Romero, Francisco Ortega Ruiz
Lung function reference values are traditionally based on anthropometric factors, such as weight, height, sex, and age. FVC and FEV1 decline with age, while volumes and capacities, such as RV and FRC, increase. TLC, VC, RV, FVC and FEV1 are affected by height, since they are proportional to body size. This means that a tall individual will experience greater decrease in lung volumes as they get older. Some variables, such as FRC and ERV, decline exponentially with an increase in weight, to the extent that tidal volume in morbidly obese patients can be close to that of RV...
February 26, 2018: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/29486525/a-quasi-3d-compartmental-multi-scale-approach-to-detect-and-quantify-diseased-regional-lung-constriction-using-spirometry-data
#14
Ravishekar Ravi Kannan, Narender Singh, Andrzej Przekwas
Spirometry is a widely used pulmonary function test to detect the airflow limitations associated with various obstructive lung diseases, such as asthma, chronic obstructive pulmonary disease (COPD), and even obesity-related complications. These conditions arise due to the change in the airway resistance, alveolar compliance, and inductance values. Currently, zero-dimensional (0D) compartmental models are commonly used for calibrating these resistance, compliance, and inductance values, i.e., solving the inverse spirometry problem...
February 27, 2018: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/29474424/the-longitudinal-association-between-changes-in-lung-function-and-changes-in-abdominal-visceral-obesity-in-korean-non-smokers
#15
Eun Kyung Choe, Hae Yeon Kang, Young Lee, Seung Ho Choi, Hee Joung Kim, Joo Sung Kim
Obesity, particularly abdominal obesity, might be related to decreased lung function. We aimed to investigate whether obesity indices are associated with forced expiratory volume in one second (FEV1) and forced vital capacity (FVC) in asymptomatic non-smokers through a longitudinal cohort study. The clinical records of 1,145 subjects (428 males, mean age 52.3 years) who underwent a comprehensive health evaluation, including spirometry and abdominal fat computed tomography, at least twice between 2007 and 2014 were retrospectively reviewed and analysed...
2018: PloS One
https://www.readbyqxmd.com/read/29461890/small-airway-disease-syndromes-piercing-the-quiet-zone
#16
Kenneth I Berger
The role for direct assessment of small airway function in subjects with respiratory symptoms but normal airflow by spirometry is discussed. Small airway disease syndrome is described in numerous disease states using a multidisciplinary approach. Data demonstrate that small airway disease is related to presence of respiratory symptoms, exposure to inhaled toxins, presence of local and systemic inflammation, and presence of histologic abnormalities within the distal lung. Investigation of immunological derangements associated with distal airway dysfunction in the setting of normal spirometry may provide insight into pathophysiological mechanisms that are present at disease onset...
February 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29454302/aerobic-exercise-inhibits-obesity-induced-respiratory-phenotype
#17
Jefferson Comin Jonco Aquino-Junior, BreAnne MacKenzie, Ana Roberta Almeida-Oliveira, Ana Carolina Martins, Manoel Carneiro Oliveira-Junior, Auriléa Aparecida Britto, Fernanda Magalhaes Arantes-Costa, Nilsa Regina Damaceno-Rodrigues, Elia Garcia Caldini, Ana Paula Ligeiro de Oliveira, Dioze Guadagnini, Luiz Osorio Leiria, Djalma Rabelo Ricardo, Mario Jose Abdalla Saad, Rodolfo Paula Vieira
PURPOSE: Obesity results in decreased lung function and increased inflammation. Moderate aerobic exercise (AE) reduced lung inflammation and remodeling in a variety of respiratory disease models. Therefore, this study investigated whether AE can attenuate a diet-induced obesity respiratory phenotype; including airway hyper-responsiveness (AHR), remodeling and inflammation. METHODS: Sixty C57Bl/6 male mice were distributed into four groups: control lean (CL), exercise lean (EL), obese (O) and obese exercise (OE) groups (2 sets of 7 and 8 mice per group; n = 15)...
April 2018: Cytokine
https://www.readbyqxmd.com/read/29449326/fatty-acid-synthase-mediates-egfr-palmitoylation-in-egfr-mutated-non-small-cell-lung-cancer
#18
Azhar Ali, Elena Levantini, Jun Ting Teo, Julian Goggi, John G Clohessy, Chan Shuo Wu, Leilei Chen, Henry Yang, Indira Krishnan, Olivier Kocher, Junyan Zhang, Ross A Soo, Kishore Bhakoo, Tan Min Chin, Daniel G Tenen
Metabolic reprogramming is widely known as a hallmark of cancer cells to allow adaptation of cells to sustain survival signals. In this report, we describe a novel oncogenic signaling pathway exclusively acting in mutated epidermal growth factor receptor (EGFR) non-small cell lung cancer (NSCLC) with acquired tyrosine kinase inhibitor (TKI) resistance. Mutated EGFR mediates TKI resistance through regulation of the fatty acid synthase (FASN), which produces 16-C saturated fatty acid palmitate. Our work shows that the persistent signaling by mutated EGFR in TKI-resistant tumor cells relies on EGFR palmitoylation and can be targeted by Orlistat, an FDA-approved anti-obesity drug...
February 15, 2018: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/29446981/diet-pattern-and-respiratory-morbidity-in-the-atherosclerosis-risk-in-communities-study
#19
Emily P Brigham, Lyn M Steffen, Stephanie J London, Danielle Boyce, Gregory B Diette, Nadia N Hansel, Jessica Rice, Meredith C McCormack
RATIONALE: Dietary intake is a potential risk factor for respiratory morbidity in adult populations. Few studies capture the effect of diet patterns, representative of combination of nutrients consumed, on respiratory morbidity in combination with objective measures of lung function. OBJECTIVES: To evaluate patterns of dietary intake in relation to respiratory morbidity and objective measures of lung function in a U.S. POPULATION: <AbstractText Label="METHODS" NlmCategory="METHODS">The Atherosclerosis Risk in Communities (ARIC) Study enrolled 15,792 participants from four U...
February 15, 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29445341/celastrol-alleviates-airway-hyperresponsiveness-and-inhibits-th17-responses-in-obese-asthmatic-mice
#20
Zeyu Zeng, Xixi Lin, Rongying Zheng, Hui Zhang, Weixi Zhang
Severe airway hyperresponsiveness (AHR) is a clinical feature of asthma, which has been associated with obesity and has shown a poor response to standard asthma treatments such as glucocorticoids. Numerous studies have shown that Interleukin (IL)-17 producing CD4 + T cells (Th17 cells), which could be inhibited by celastrol, is essential in mediating steroid-resistant AHR. The following study investigates the impact of celastrol and its mechanism on the regulation of AHR in murine model of obesity and asthma...
2018: Frontiers in Pharmacology
keyword
keyword
39492
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"