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https://www.readbyqxmd.com/read/27933671/causal-inference-in-obesity-research
#1
REVIEW
P W Franks, N Atabaki-Pasdar
Obesity is a risk factor for a plethora of severe morbidities and premature death. Most supporting evidence comes from observational studies that are prone to chance, bias and confounding. Even data on the protective effects of weight loss from randomized controlled trials will be susceptible to confounding and bias if treatment assignment cannot be masked, which is usually the case with lifestyle and surgical interventions. Thus, whilst obesity is widely considered the major modifiable risk factor for many chronic diseases, its causes and consequences are often difficult to determine...
December 8, 2016: Journal of Internal Medicine
https://www.readbyqxmd.com/read/27931609/clinical-and-biological-insights-into-combined-post-and-pre-capillary-pulmonary-hypertension
#2
Tufik R Assad, Anna R Hemnes, Emma K Larkin, Andrew M Glazer, Meng Xu, Quinn S Wells, Eric H Farber-Eger, Quanhu Sheng, Yu Shyr, Frank E Harrell, John H Newman, Evan L Brittain
BACKGROUND: Pulmonary hypertension (PH) is a common and morbid complication of left heart disease with 2 subtypes: isolated post-capillary pulmonary hypertension (Ipc-PH) and combined post-capillary and pre-capillary pulmonary hypertension (Cpc-PH). Little is known about the clinical or physiological characteristics that distinguish these 2 subphenotypes or if Cpc-PH shares molecular similarities to pulmonary arterial hypertension (PAH). OBJECTIVES: The goal of this study was to test the hypothesis that the hemodynamic and genetic profile of Cpc-PH would more closely resemble PAH than Ipc-PH...
December 13, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27925183/changing-socioeconomic-inequalities-in-cancer-incidence-and-mortality-cohort-study-with-54-million-person-years-follow-up-1981-2011
#3
Andrea M Teng, June Atkinson, George Disney, Nick Wilson, Tony Blakely
Cancer is increasingly responsible for the mortality gap between high and low socioeconomic position groups in high-income countries. This study investigates which cancers are contributing more to socioeconomic gaps in mortality and how this changes over time. New Zealand census data from 1981, 1986, 1991, 1996, 2001, and 2006, were linked to three to five years of subsequent mortality and cancer registrations, resulting in 54 and 42 million years of follow-up cancer incidence and mortality respectively. Age- and ethnicity-standardised cancer mortality rates and the slope index of inequality (SII) by income were calculated...
December 7, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27923982/effect-of-expiratory-positive-airway-pressure-on-tidal-volume-during-non-invasive-ventilation
#4
W Kinnear, L Watson, P Smith, L Johnson, S Burrows, J Colt, M Sovani, A Khanna
During non-invasive ventilation (NIV), tidal volume (V t) will depend upon the difference between inspiratory and expiratory positive airway pressure (IPAP and EPAP, respectively), provided the respiratory muscles are relaxed and the lungs and chest wall therefore move along their passive pressure-volume curves. To test this hypothesis, we studied the effect of increasing EPAP during pressure-controlled modes of NIV in 30 long-term ventilator users (10 each with scoliosis, obesity hypoventilation or neuromuscular disorders)...
December 6, 2016: Chronic Respiratory Disease
https://www.readbyqxmd.com/read/27906857/obesity-and-chronic-obstructive-pulmonary-disease-recent-knowledge-and-future-directions
#5
Corrine Hanson, Tricia LeVan
PURPOSE OF REVIEW: Obesity has been shown to have a significant impact on lung diseases, including chronic obstructive pulmonary disease (COPD). The purpose of this review is to discuss the most recent findings regarding the association between obesity, COPD, and COPD-related outcomes. RECENT FINDINGS: Evidence indicates that obese patients with COPD may compose a unique disease phenotype who are more susceptible than their lean counterparts to environmental exposures...
November 30, 2016: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/27903669/exertional-dyspnoea-in-obesity
#6
Vipa Bernhardt, Tony G Babb
The purpose of cardiopulmonary exercise testing (CPET) in the obese person, as in any cardiopulmonary exercise test, is to determine the patient's exercise tolerance, and to help identify and/or distinguish between the various physiological factors that could contribute to exercise intolerance. Unexplained dyspnoea on exertion is a common reason for CPET, but it is an extremely complex symptom to explain. Sometimes obesity is the simple answer by elimination of other possibilities. Thus, distinguishing among multiple clinical causes for exertional dyspnoea depends on the ability to eliminate possibilities while recognising response patterns that are unique to the obese patient...
December 2016: European Respiratory Review: An Official Journal of the European Respiratory Society
https://www.readbyqxmd.com/read/27903059/identifying-counties-vulnerable-to-diabetes-from-obesity-prevalence-in-the-united-states-a-spatiotemporal-analysis
#7
Xiao Li, Amanda Staudt, Lung-Chang Chien
Clinical and epidemiological research has reported a strong association between diabetes and obesity. However, whether increased diabetes prevalence is more likely to appear in areas with increased obesity prevalence has not been thoroughly investigated in the United States (US). The Bayesian structured additive regression model was applied to identify whether counties with higher obesity prevalence are more likely clustered in specific regions in 48 contiguous US states. Prevalence data adopted the small area estimate from the Behavioral Risk Factor Surveillance System...
November 21, 2016: Geospatial Health
https://www.readbyqxmd.com/read/27888992/il-17-protein-levels-in-both-induced-sputum-and-plasma-are-increased-in-stable-but-not-acute-asthma-individuals-with-obesity
#8
Jian-Hui Chen, Ling Qin, Ying-Ying Shi, Jun-Tao Feng, Yu-Long Zheng, Yu-Feng Wan, Chuan-Qin Xu, Xiao-Mei Yang, Cheng-Ping Hu
BACKGROUND: Obesity worsens asthma control partly through enhanced airway neutrophilia, altered lung mechanics and comorbidities, including obstructive sleep apnea syndrome, gastroesophageal reflux disease and depression. Although controversial, obesity may also cause poorer outcomes in acute asthma. IL-17 is associated with neutrophilic inflammation, steroid resistance and severe asthma, but its importance in the association between asthma and obesity is unknown. OBJECTIVE: To investigate the role of IL-17 in obese asthma in both acute and stable settings...
December 2016: Respiratory Medicine
https://www.readbyqxmd.com/read/27886421/pathophysiology-of-dyspnoea-in-acute-pulmonary-embolism-a-cross-sectional-evaluation
#9
Olivier Sanchez, Aurore Caumont-Prim, Elisabeth Riant, Laurent Plantier, Martin Dres, Bruno Louis, Marie-Anne Collignon, Benoit Diebold, Guy Meyer, Claudine Peiffer, Christophe Delclaux
BACKGROUND AND OBJECTIVE: Dyspnoea in pulmonary embolism (PE) remains poorly characterized. Little is known about how to measure intensity or about the underlying mechanisms that may be related to ventilatory abnormalities, alveolar dead space ventilation or modulating factors such as psychological modulate. We hypothesized that dyspnoea would mainly be associated with pulmonary vascular obstruction and its pathophysiological consequences, while the sensory-affective domain of dyspnoea would be influenced by other factors...
November 25, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27882862/milk-and-dairy-products-good-or-bad-for-human-health-an-assessment-of-the-totality-of-scientific-evidence
#10
REVIEW
Tanja Kongerslev Thorning, Anne Raben, Tine Tholstrup, Sabita S Soedamah-Muthu, Ian Givens, Arne Astrup
BACKGROUND: There is scepticism about health effects of dairy products in the public, which is reflected in an increasing intake of plant-based drinks, for example, from soy, rice, almond, or oat. OBJECTIVE: This review aimed to assess the scientific evidence mainly from meta-analyses of observational studies and randomised controlled trials, on dairy intake and risk of obesity, type 2 diabetes, cardiovascular disease, osteoporosis, cancer, and all-cause mortality...
2016: Food & Nutrition Research
https://www.readbyqxmd.com/read/27878479/total-transthoracic-approach-facilitates-laparoscopic-hepatic-resection-in-patients-with-significant-prior-abdominal-surgery
#11
Suguru Yamashita, Evelyne Loyer, Hyunseon C Kang, Thomas A Aloia, Yun Shin Chun, Reza J Mehran, Cathy Eng, Jeffrey E Lee, Jean-Nicolas Vauthey, Claudius Conrad
BACKGROUND: While the oncologic safety of minimally invasive hepatectomy for colorectal liver metastases (CLM) has been demonstrated, lesions in the postero-superior segments may be challenging.1 (-) 3 For these lesions, a transthoracic approach may be particularly helpful, especially in patients with a hostile/reoperative abdomen or morbid obesity.4 (,) 5 PATIENT: A 43-year-old man with a body mass index of 36.0 who had undergone rectosigmoid resection for primary cancer 5 years ago recurred with a solitary liver metastasis in SVIII...
November 22, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27877034/persistent-disabling-breathlessness-in-chronic-obstructive-pulmonary-disease
#12
Josefin Sundh, Magnus Ekström
OBJECTIVE: To determine the prevalence, change in breathlessness status over time, and risk factors for disabling and persistent disabling breathlessness in relation to treatments in chronic obstructive pulmonary disease (COPD). MATERIALS AND METHODS: Longitudinal analysis of data from the Swedish National Register of COPD with breathlessness measured using modified Medical Research Council (mMRC) scores at two subsequent visits. Prevalence of disabling breathlessness (mMRC ≥2 at baseline) and persistent disabling breathlessness (disabling breathlessness at baseline and follow-up) was investigated in relation to COPD treatment...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27875728/exercise-induced-pulmonary-hypertension-by-stress-echocardiography-prevalence-and-correlation-with-right-heart-hemodynamics
#13
Deepika Misra, Ante Kendes, Roxana Sulica, Blase Carabello
OBJECTIVES: The aim of this study was to determine the prevalence of exercise-induced pulmonary hypertension (EIPH) in consecutive subjects referred for stress echocardiography for chest pain or shortness of breath and correlate echocardiographic diagnosis of EIPH with hemodynamics at right heart catheterization (RHC). BACKGROUND: Elevated pulmonary pressure can lead to significant morbidity and mortality. EIPH by ehocardiography has been described in patients with connective tissue disease...
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27865799/oleic-acid-induced-angptl4-enhances-head-and-neck-squamous-cell-carcinoma-anoikis-resistance-and-metastasis-via-up-regulation-of-fibronectin
#14
Chih-Jie Shen, Shih-Hung Chan, Chung-Ta Lee, Wan-Chen Huang, Jhih-Peng Tsai, Ben-Kuen Chen
Obese patients have higher levels of free fatty acids (FFAs) in their plasma and a higher risk of cancer than their non-obese counterparts. However, the mechanisms involved in the regulation of cancer metastasis by FFAs remain unclear. In this study, we found that oleic acid (OA) induced angiopoietin-like 4 (ANGPTL4) protein expression and secretion and conferred anoikis resistance to head and neck squamous cell carcinomas (HNSCCs). The autocrine production of OA-induced ANGPTL4 further promoted HNSCC migration and invasion...
November 16, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27856456/inflammatory-obesity-phenotypes-gender-effects-and-subclinical-atherosclerosis-in-african-americans-the-jackson-heart-study
#15
Albert Lin, Mary E Lacy, Charles Eaton, Adolfo Correa, Wen-Chih Wu
OBJECTIVE: Reasons for variations in atherosclerotic burden among individuals with similar levels of obesity are poorly understood, especially in African Americans. This study examines whether high-sensitivity C-reactive protein (hsCRP) is useful for discriminating between benign and high-risk obesity phenotypes for subclinical atherosclerosis in African Americans. APPROACH AND RESULTS: Participants from the Jackson Heart Study (n=4682) were stratified into 4 phenotypes based on the presence of National Heart and Lung and Blood Institute definition of obesity or obesity-equivalent (body mass index ≥30 or body mass index 25-30 with waist circumference >102 cm in men and >88 cm in women) and inflammation by hsCRP ≥2 mg/L...
December 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/27837443/do-cancer-survivors-develop-healthier-lifestyle-behaviors-than-the-cancer-free-population-in-the-plco-study
#16
Makenzie L Hawkins, Saundra S Buys, Lisa H Gren, Sara E Simonsen, Anne C Kirchhoff, Mia Hashibe
BACKGROUND: Current studies report mixed results in health status and health behaviors after a diagnosis of cancer. The aim of our study is to investigate potential differences in lifestyle factors among cancer survivors and cancer-free individuals in a prospective cohort study conducted in the United States. METHODS: Using data from the Prostate, Lung, Colorectal and Ovarian (PLCO) Trial, 10,133 cancer survivors were identified and compared to 81,992 participants without cancer to evaluate differences in body mass index (BMI), smoking, NSAID use, and physical activity...
November 11, 2016: Journal of Cancer Survivorship: Research and Practice
https://www.readbyqxmd.com/read/27832776/mapping-genetic-research-in-non-communicable-disease-publications-in-selected-arab-countries-first-step-towards-a-guided-research-agenda
#17
REVIEW
Zeina Jamaluddine, Abla Mehio Sibai, Shahd Othman, Soha Yazbek
BACKGROUND: In the Arab world, intervention and policy response to non-communicable diseases (NCD) has been weak despite extensive epidemiological evidence highlighting the alarmingly increased prevalence of chronic diseases. Generating genetic information is one key component to promote efficient disease management strategies. This study undertook a scoping review to generate the profile of the undertaken research on genetics of NCD publications in selected Arab countries. An analysis of the research produced examined the extent, range, nature, topic and methods of published research...
November 10, 2016: Health Research Policy and Systems
https://www.readbyqxmd.com/read/27830194/effect-of-high-fat-diet-on-pulmonary-expression-of-parathyroid-hormone-related-protein-and-its-downstream-targets
#18
Learta Oruqaj, Svenja Forst, Rolf Schreckenberg, Javier Inserte, Marcos Poncelas, Jordi Bañeras, David Garcia-Dorado, Susanne Rohrbach, Klaus-Dieter Schlüter
AIMS: Parathyroid hormone-related protein (PTHrP) is involved in lung development and surfactant production. The latter one requires a paracrine interaction between type II alveolar cells and lipofibroblasts in which leptin triggers PTHrP-induced effects. Whether increased plasma leptin levels, as they occur in high fat diet, modify the expression of PTHrP remains unclear. Furthermore, the effect of high fat diet under conditions of forced pulmonary remodelling such as response to post myocardial infarction remains to be defined...
October 2016: Heliyon
https://www.readbyqxmd.com/read/27827006/did-napoleon-suffer-from-chronic-rhonchopathy
#19
Claude-Henri Chouard
CONCLUSION: If Napoleon had been treated, Europa would then have doubtless been different, and perhaps would not have known the last two World wars. OBJECTIVES: This study plans to demonstrate that Napoleon very probably suffered from Chronic Rhonchopathy. BACKGROUND: Between 1983-1993, the author led their ENT department of CHU Saint-Antoine to contribute in the knowledge of chronic snoring and Obstructive Sleep Apneas Syndrome (OSAS), and to define the treatment of their consequences...
November 9, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27818069/maternal-obesity-mediated-predisposition-to-respiratory-complications-at-birth-and-in-later-life-understanding-the-implications-of-the-obesogenic-intrauterine-environment
#20
REVIEW
Erin V McGillick, Mitchell C Lock, Sandra Orgeig, Janna L Morrison
More women than not are entering pregnancy either overweight or obese. This presents a significant health care burden with respect to maternal morbidities and offspring complications at birth and in later life. In recent years it has also become clear that maternal obesity is an even greater global health problem than anticipated, because the effects are not limited to the mother but are also programmed in the fetus, known as the 'intergenerational cycle of obestiy'. Despite a large body of epidemiological evidence reporting outcomes of obese pregnancies, including offspring respiratory complications, much less is known about the molecular effects of maternal obesity on fetal lung development...
October 11, 2016: Paediatric Respiratory Reviews
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