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https://www.readbyqxmd.com/read/29045567/individualized-positive-end-expiratory-pressure-in-obese-patients-during-general-anaesthesia-a-randomized-controlled-clinical-trial-using-electrical-impedance-tomography
#1
C Nestler, P Simon, D Petroff, S Hammermüller, D Kamrath, S Wolf, A Dietrich, L M Camilo, A Beda, A R Carvalho, A Giannella-Neto, A W Reske, H Wrigge
Background: General anaesthesia leads to atelectasis, reduced end-expiratory lung volume (EELV), and diminished arterial oxygenation in obese patients. We hypothesized that a combination of a recruitment manoeuvre (RM) and individualized positive end-expiratory pressure (PEEP) can avoid these effects. Methods: Patients with a BMI ≥35 kg m-2 undergoing elective laparoscopic surgery were randomly allocated to mechanical ventilation with a tidal volume of 8 ml kg-1 predicted body weight and (i) an RM followed by individualized PEEP titrated using electrical impedance tomography (PEEPIND) or (ii) no RM and PEEP of 5 cm H2O (PEEP5)...
October 16, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29035138/body-weight-predicts-nicotinamide-n-methyltransferase-activity-in-mouse-fat
#2
Bianca Rudolphi, Benedikt Zapp, Nils A Kraus, Franziska Ehebauer, Bettina J Kraus, Daniel Kraus
AIM: Nicotinamide N-methyltransferase (NNMT) is a novel regulator of energy homeostasis in adipose tissue. NNMT expression is higher in obese mice than in lean mice, and NNMT knockdown prevents diet-induced obesity. Little is known about the regulation of enzyme activity during the development of obesity. The aim of this study was to analyze NNMT activity in tissues of mice with incipient and established obesity. METHODS: A fluorescence-based, sensitive, low-volume, high-throughput method was developed to assay NNMT activity...
October 16, 2017: Endocrine Research
https://www.readbyqxmd.com/read/29030599/genome-wide-meta-analysis-associates-hla-dqa1-drb1-and-lpa-and-lifestyle-factors-with-human-longevity
#3
Peter K Joshi, Nicola Pirastu, Katherine A Kentistou, Krista Fischer, Edith Hofer, Katharina E Schraut, David W Clark, Teresa Nutile, Catriona L K Barnes, Paul R H J Timmers, Xia Shen, Ilaria Gandin, Aaron F McDaid, Thomas Folkmann Hansen, Scott D Gordon, Franco Giulianini, Thibaud S Boutin, Abdel Abdellaoui, Wei Zhao, Carolina Medina-Gomez, Traci M Bartz, Stella Trompet, Leslie A Lange, Laura Raffield, Ashley van der Spek, Tessel E Galesloot, Petroula Proitsi, Lisa R Yanek, Lawrence F Bielak, Antony Payton, Federico Murgia, Maria Pina Concas, Ginevra Biino, Salman M Tajuddin, Ilkka Seppälä, Najaf Amin, Eric Boerwinkle, Anders D Børglum, Archie Campbell, Ellen W Demerath, Ilja Demuth, Jessica D Faul, Ian Ford, Alessandro Gialluisi, Martin Gögele, MariaElisa Graff, Aroon Hingorani, Jouke-Jan Hottenga, David M Hougaard, Mikko A Hurme, M Arfan Ikram, Marja Jylhä, Diana Kuh, Lannie Ligthart, Christina M Lill, Ulman Lindenberger, Thomas Lumley, Reedik Mägi, Pedro Marques-Vidal, Sarah E Medland, Lili Milani, Reka Nagy, William E R Ollier, Patricia A Peyser, Peter P Pramstaller, Paul M Ridker, Fernando Rivadeneira, Daniela Ruggiero, Yasaman Saba, Reinhold Schmidt, Helena Schmidt, P Eline Slagboom, Blair H Smith, Jennifer A Smith, Nona Sotoodehnia, Elisabeth Steinhagen-Thiessen, Frank J A van Rooij, André L Verbeek, Sita H Vermeulen, Peter Vollenweider, Yunpeng Wang, Thomas Werge, John B Whitfield, Alan B Zonderman, Terho Lehtimäki, Michele K Evans, Mario Pirastu, Christian Fuchsberger, Lars Bertram, Neil Pendleton, Sharon L R Kardia, Marina Ciullo, Diane M Becker, Andrew Wong, Bruce M Psaty, Cornelia M van Duijn, James G Wilson, J Wouter Jukema, Lambertus Kiemeney, André G Uitterlinden, Nora Franceschini, Kari E North, David R Weir, Andres Metspalu, Dorret I Boomsma, Caroline Hayward, Daniel Chasman, Nicholas G Martin, Naveed Sattar, Harry Campbell, Tōnu Esko, Zoltán Kutalik, James F Wilson
Genomic analysis of longevity offers the potential to illuminate the biology of human aging. Here, using genome-wide association meta-analysis of 606,059 parents' survival, we discover two regions associated with longevity (HLA-DQA1/DRB1 and LPA). We also validate previous suggestions that APOE, CHRNA3/5, CDKN2A/B, SH2B3 and FOXO3A influence longevity. Next we show that giving up smoking, educational attainment, openness to new experience and high-density lipoprotein (HDL) cholesterol levels are most positively genetically correlated with lifespan while susceptibility to coronary artery disease (CAD), cigarettes smoked per day, lung cancer, insulin resistance and body fat are most negatively correlated...
October 13, 2017: Nature Communications
https://www.readbyqxmd.com/read/29026529/coordinating-erk-signaling-via-the-molecular-scaffold-kinase-suppressor-of-ras
#4
REVIEW
Danielle Frodyma, Beth Neilsen, Diane Costanzo-Garvey, Kurt Fisher, Robert Lewis
Many cancers, including those of the colon, lung, and pancreas, depend upon the signaling pathways induced by mutated and constitutively active Ras. The molecular scaffolds Kinase Suppressor of Ras 1 and 2 (KSR1 and KSR2) play potent roles in promoting Ras-mediated signaling through the Raf/MEK/ERK kinase cascade. Here we summarize the canonical role of KSR in cells, including its central role as a scaffold protein for the Raf/MEK/ERK kinase cascade, its regulation of various cellular pathways mediated through different binding partners, and the phenotypic consequences of KSR1 or KSR2 genetic inactivation...
2017: F1000Research
https://www.readbyqxmd.com/read/29022513/discrepancies-in-animal-models-of-preterm-birth
#5
Clarence R Manuel, Charles R Ashby, Sandra E Reznik
BACKGROUND: Preterm birth (PTB) is a multifactorial syndrome occurring before the 37th week of full-term pregnancy [1]. Babies delivered preterm experience short-term and long-term complications affecting multiple organ systems, and serious maternal complications include hemorrhage and infection. Each year, an estimated 15 million babies are born preterm, and complications from prematurity are the leading cause of death among children up to 5 years of age [2]. With another increase in PTB rates over the last several years, the United States continues to have the highest incidence of any industrialized country [3]...
October 12, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29022218/an-examination-of-the-mechanisms-and-personality-traits-underlying-food-addiction-among-individuals-with-severe-obesity-awaiting-bariatric-surgery
#6
Anne-Sophie Ouellette, Christopher Rodrigue, Simone Lemieux, André Tchernof, Laurent Biertho, Catherine Bégin
PURPOSE: The aetiology underlying addiction has often been investigated to shed more light on the factors contributing to the development and maintenance of various disorders. In the field of addictive eating behaviours, data on the aetiological factors related to food addiction (FA) in the bariatric context remain scarce. The present study aimed to explore mechanisms and variables underlying FA among individuals suffering from severe obesity and awaiting bariatric surgery. METHODS: Participants (N = 146) were recruited at the Quebec Heart and Lung Institute during their pre-operative visit and were invited to complete questionnaires...
October 11, 2017: Eating and Weight Disorders: EWD
https://www.readbyqxmd.com/read/29021891/a-good-sugar-d-mannose-suppresses-autoimmune-diabetes
#7
Yun-Bo Shi, Deling Yin
It is well known that too much sugar uptake causes many health problems, including diabetes and obesity (Lustig et al. in Nature 482:27-29, 2012). However, a team of researchers led by Dr. Wanjun Chen of the National Institute of Dental and Craniofacial Research (NIDCR), National Institutes of Health (NIH), USA, have recently shown that d-mannose, a naturally occurring C-2 epimer of glucose is likely beneficial to human health. Their studies have revealed that supraphysiological levels of d-mannose that are safely achievable via drinking-water supplementation can be preventive and therapeutic to experimental autoimmune diabetes and asthmatic lung inflammation (Zhang et al...
2017: Cell & Bioscience
https://www.readbyqxmd.com/read/28983918/how-many-cancer-cases-and-deaths-are-potentially-preventable-estimates-for-australia-in-2013
#8
Louise F Wilson, Annika Antonsson, Adele C Green, Susan J Jordan, Bradley J Kendall, Christina M Nagle, Rachel E Neale, Catherine M Olsen, Penelope M Webb, David C Whiteman
Cancer is a leading cause of disease burden in Australia, particularly fatal burden, accounting for an estimated thirty percent of deaths. Many cancers develop because of exposure to lifestyle and environmental factors that are potentially modifiable. We aimed to quantify the proportions and numbers of cancer deaths and cases in Australia in 2013 attributable to 20 modifiable factors in eight broad groupings that are established causes of cancer, namely: tobacco smoke (smoking and second-hand), dietary factors (low intake of fruit, non-starchy vegetables and dietary fibre; and high intake of red and processed meat), overweight/obesity, alcohol, physical inactivity, solar ultraviolet radiation, infections (seven agents), and reproductive factors (lack of breastfeeding, menopausal hormone therapy use, combined oral contraceptive use)...
October 6, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28979114/impact-of-overweight-and-obesity-on-acute-exacerbations-of-copd-subgroup-analysis-of-the-taiwan-obstructive-lung-disease-cohort
#9
Yu-Feng Wei, Ying-Huang Tsai, Chin-Chou Wang, Ping-Hung Kuo
PURPOSE: A low body mass index (BMI) is a poor prognostic marker of acute exacerbations and mortality in patients with COPD. However, the impact of overweight and obesity on COPD-related outcomes is uncertain. The aim of this study was to examine whether a high BMI is associated with the frequent exacerbator phenotype (≥2/year) in Taiwanese patients with COPD. PATIENTS AND METHODS: Data were obtained from the Taiwan Obstructive Lung Disease study, a retrospective, observational nationwide survey of COPD patients conducted at 12 hospitals in Taiwan...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28968807/chymase-is-a-predictive-biomarker-of-dengue-hemorrhagic-fever-in-pediatric-and-adult-patients
#10
Hasitha Tissera, Abhay P S Rathore, Wei Yee Leong, Brian L Pike, Tyler E Warkentien, Farouk S Farouk, Ayesa Syenina, Eng Eong Ooi, Duane J Gubler, Annelies Wilder-Smith, Ashley L St John
Background: Most dengue patients experience mild disease, dengue fever (DF), while few develop life-threatening severe disease, or dengue hemorrhagic fever/dengue shock syndrome (DHF/DSS). No laboratory tests predict DHF/DSS. We evaluated whether serum chymase can predict DHF/DSS in adult and pediatric patients and the influence of pre-existing conditions (PECs) on chymase levels. Methods: Serum chymase levels were measured in patients presenting with undifferentiated fever to hospitals in Colombo District, Sri Lanka...
August 25, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28967546/overweight-obesity-and-lung-function-in-children-and-adults-a-meta-analysis
#11
Erick Forno, Yueh-Ying Han, James Mullen, Juan C Celedón
BACKGROUND: There is conflicting evidence on the effect of obesity on lung function in adults and children with and without asthma. We aimed to evaluate the relation between overweight or obesity and lung function, and whether such relationship varies by age, sex, or asthma status. METHODS: We searched PubMed, Scopus, CINAHL, Cochrane, and EMBASE for all studies (in English) reporting on obesity status (by body mass index) and lung function, from 2005 to 2017. Main outcomes were forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), FEV1/FVC, forced expiratory flow between 25th and 75th percentile of the forced vital capacity (FEF25-75), total lung capacity (TLC), residual volume (RV), and functional residual capacity (FRC)...
September 26, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28966319/coronary-artery-bypass-grafting-with-arterial-conduits-in-the-elderly
#12
Francesco Nicolini, Antonella Vezzani, Giorgio Romano, Davide Carino, Matteo Ricci, Maria Vincenza Di Chicco, Tiziano Gherli
Although improved long-term outcomes obtained with the use of arterial grafts for coronary revascularization in comparison with the traditional association of a single arterial and saphenous vein grafts have been demonstrated in the overall population, the efficacy of this newer technique in the elderly is difficult to prove because their shorter life expectancy due to advanced heart disease, associated with severe comorbidities. Moreover, more widespread use of this technique is limited by the concerns on the potential morbidity, particularly the longer time required to perform the operation and the possibility of deep sternal wound infection in case of bilateral internal thoracic artery harvesting due to the decreased blood supply to the sternum and surrounding tissues...
September 30, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28964798/phenotypic-clusters-predict-outcomes-in-a-longitudinal-interstitial-lung-disease-cohort
#13
Ayodeji Adegunsoye, Justin M Oldham, Jonathan H Chung, Steven M Montner, Cathryn Lee, Leah J Witt, Danielle Stahlbaum, Rene S Bermea, Lena W Chen, Scully Hsu, Aliya N Husain, Imre Noth, Rekha Vij, Mary E Strek, Matthew Churpek
BACKGROUND: The current interstitial lung disease (ILD) classification has overlapping clinical presentations and outcomes. Cluster analysis modeling is a valuable tool in identifying distinct clinical phenotypes in heterogeneous diseases. However, this approach has yet to be implemented in ILD. METHODS: Using cluster analysis, we identified novel ILD phenotypes among subjects from a longitudinal ILD cohort and stratified outcomes by phenotypic clusters compared to subgroups by current American Thoracic Society (ATS)/European Respiratory Society (ERS) ILD classification criteria...
September 27, 2017: Chest
https://www.readbyqxmd.com/read/28963087/metformin-influences-on-respiratory-system-in-obese-mice-induced-by-postnatal-overnutrition
#14
Maycon Daniel Dias, Melissa Goulart, Cecilia Dalécio, Silvia Enes-Marques, Évila da Silva Lopes Salles, Marina Venâncio, Elisângela Monteiro Pereira, Valdemar Antonio Paffaro, Erika Kristina Incerpi, Roseli Soncini
Many studies have confirmed the merits of metformin to treat type 2 diabetes, but few studies have addressed its effect on the respiratory system. Moreover, vascular endothelial growth factor (VEGF) is critical to many lung functions. In this way, we evaluated the metformin impact on the lung in treated obese Swiss mice, induced by postnatal overnutrition. Glucose and insulin were detected and the insulin resistance index (HOMA) was calculated; inflammatory cells and nitrite/nitrate concentration (NOx) was quantified from bronchoalveolar lavage, collagen and lung VEGF-a was analysed in the lung tissue and lung mechanics were evaluated by methacholine-induced bronchoconstriction...
September 28, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28957638/augmented-responses-to-ozone-in-obese-mice-require-il-17a-and-gastrin-releasing-peptide
#15
Joel A Mathews, Nandini Krishnamoorthy, David I Kasahara, John Hutchinson, Youngji Cho, Jeffrey D Brand, Alison S Williams, Allison P Wurmbrand, Luiza Ribeiro, Frank Cuttitta, Mary E Sunday, Bruce D Levy, Stephanie A Shore
Ozone and obesity both increase IL-17A in the lungs. In mice, obesity augments the airway hyperresponsiveness and neutrophil recruitment induced by acute ozone exposure. Therefore, we examined the role of IL-17A in obesity-related increases in the response to ozone observed in obese mice. Lean wildtype and obese db/db mice were pretreated with IL-17A blocking or isotype antibodies, exposed to air or ozone (2 ppm for 3 h), and evaluated 24 h later. Microarray analysis of lung tissue gene expression was used to examine the mechanistic basis for effects of anti-IL-17A...
September 28, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28957450/pleiotropy-of-genetic-variants-on-obesity-and-smoking-phenotypes-results-from-the-oncoarray-project-of-the-international-lung-cancer-consortium
#16
Tao Wang, Jee-Young Moon, Yiqun Wu, Christopher I Amos, Rayjean J Hung, Adonina Tardon, Angeline Andrew, Chu Chen, David C Christiani, Demetrios Albanes, Erik H F M van der Heijden, Eric Duell, Gadi Rennert, Gary Goodman, Geoffrey Liu, James D Mckay, Jian-Min Yuan, John K Field, Jonas Manjer, Kjell Grankvist, Lambertus A Kiemeney, Loic Le Marchand, M Dawn Teare, Matthew B Schabath, Mattias Johansson, Melinda C Aldrich, Michael Davies, Mikael Johansson, Ming-Sound Tsao, Neil Caporaso, Philip Lazarus, Stephen Lam, Stig E Bojesen, Susanne Arnold, Xifeng Wu, Xuchen Zong, Yun-Chul Hong, Gloria Y F Ho
Obesity and cigarette smoking are correlated through complex relationships. Common genetic causes may contribute to these correlations. In this study, we selected 241 loci potentially associated with body mass index (BMI) based on the Genetic Investigation of ANthropometric Traits (GIANT) consortium data and calculated a BMI genetic risk score (BMI-GRS) for 17,037 individuals of European descent from the Oncoarray Project of the International Lung Cancer Consortium (ILCCO). Smokers had a significantly higher BMI-GRS than never-smokers (p = 0...
2017: PloS One
https://www.readbyqxmd.com/read/28954402/tissue-specific-modulation-of-cyp2c-and-cyp3a-mrna-levels-and-activities-by-diet-induced-obesity-in-mice-the-impact-of-type-2-diabetes-on-drug-metabolizing-enzymes-in-liver-and-extra-hepatic-tissues
#17
Sarah Maximos, Michel Chamoun, Sophie Gravel, Jacques Turgeon, Veronique Michaud
Various diseases such as type 2 diabetes (T2D) may alter drug clearance. The objective of this study was to evaluate the effects of T2D on CYP450 expressions and activities using high-fat diet (HFD) as a model of obesity-dependent diabetes in C57BL6 mice. The cyp450 mRNA expression levels for 15 different isoforms were determined in the liver and extra-hepatic tissues (kidneys, lungs and heart) of HFD-treated animals (n = 45). Modulation of cyp450 metabolic activities by HFD was assessed using eight known substrates for specific human ortholog CYP450 isoforms: in vitro incubations were conducted with liver and extra-hepatic microsomes...
September 26, 2017: Pharmaceutics
https://www.readbyqxmd.com/read/28952460/serum-and-exhaled-breath-condensate-leptin-levels-in-asthmatic-and-obesity-children-a-pilot-study
#18
A Bodini, L Tenero, M Sandri, C Maffeis, M Piazza, L Zanoni, D Peroni, A Boner, G Piacentini
BACKGROUND: Recent studies have highlighted the possible involvement of leptin in inflammation. The leptin receptor is also expressed by alveolar macrophages, T lymphocytes and bronchial epitelial cells, suggesting a possible role in the cascade of airway inflammation. OBJECTIVES: The aim of the study was to evaluate the levels of leptin in exhaled breath condensate (EBC) from asthmatic, normal- and overweight children, in relationship with airway inflammation. METHODS: 15 asthmatic non-obese children, 15 healthy non-asthmatic non-obese children, 11 obese children with asthma (OA) and 20 obese children without asthma (ONA) were enrolled...
September 27, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28951839/lower-cellular-metabolic-power-can-be-an-explanation-for-obesity-trend-in-tae-eum-type-hypothesis-and-clinical-observation
#19
Eun Bo Shim, Chae Hun Leem, Joong Jae Kim, Jong Yeol Kim
BACKGROUND: Those classified as Tae-Eum (TE)-type people in Sasang constitutional medicine (SCM) are prone to obesity. Although extensive clinical observations have confirmed this tendency, the underlying physiological mechanisms are unknown. Here, we propose a novel hypothesis using integrative physiology to explain this phenomenon. METHODS: Hypoactive lung function in the TE type indicates that respiration is attenuated at the cellular level-specifically, mitochondrial oxygen consumption...
September 2017: Integrative medicine research
https://www.readbyqxmd.com/read/28947030/the-association-between-anthropometric-measures-and-lung-function-in-a-population-based-study-of-canadian-adults
#20
A Rowe, P Hernandez, S Kuhle, S Kirkland
BACKGROUND: Decreased lung function has health impacts beyond diagnosable lung disease. It is therefore important to understand the factors that may influence even small changes in lung function including obesity, physical fitness and physical activity. The aim of this study was to determine the anthropometric measure most useful in examining the association with lung function and to determine how physical activity and physical fitness influence this association. METHODS: The current study used cross-sectional data on 4662 adults aged 40-79 years from the Canadian Health Measures Survey Cycles 1 and 2...
October 2017: Respiratory Medicine
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