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https://www.readbyqxmd.com/read/28430738/three-dimensional-fractal-analysis-of-99mtc-maa-spect-images-in-chronic-thromboembolic-pulmonary-hypertension-for-evaluation-of-response-to-balloon-pulmonary-angioplasty-association-with-pulmonary-arterial-pressure
#1
Yasuhiro Maruoka, Michinobu Nagao, Shingo Baba, Takuro Isoda, Yoshiyuki Kitamura, Yuzo Yamazaki, Koichiro Abe, Masayuki Sasaki, Kohtaro Abe, Hiroshi Honda
OBJECTIVE: Balloon pulmonary angioplasty (BPA) is used for inoperable chronic thromboembolic pulmonary hypertension (CTEPH), but its effect cannot be evaluated noninvasively. We devised a noninvasive quantitative index of response to BPA using three-dimensional fractal analysis (3D-FA) of technetium-99m-macroaggregated albumin (Tc-MAA) single-photon emission computed tomography (SPECT). PATIENTS AND METHODS: Forty CTEPH patients who underwent pulmonary perfusion scintigraphy and mean pulmonary arterial pressure (mPAP) measurement by right heart catheterization before and after BPA were studied...
April 20, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28430622/serious-adverse-events-of-cell-therapy-for-respiratory-diseases-a-systematic-review-and-meta-analysis
#2
REVIEW
Runzhen Zhao, Zhenlei Su, Jing Wu, Hong-Long Ji
BACKGROUND: Cell therapy holds the most promising for acute and chronic deleterious respiratory diseases. However, the safety and tolerance for lung disorders are controversy. METHODS: We undertook a systematic review and meta-analyses of all 23 clinical studies of cell therapy. The outcomes were odds ratio (OR), risk difference (RD), Peto OR, relative risk, and mean difference of serious adverse events. RESULTS: 342 systemic infusions and 57 bronchial instillations (204 recipients) of cells were analyzed for acute respiratory distress syndrome (ARDS), bronchopulmonary dysplasia, pulmonary arterial hypertension, silicosis, sarcoidosis, extensively drug-resistant tuberculosis, chronic obstructive pulmonary diseases (COPD), and idiopathic pulmonary fibrosis...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430547/enhancing-insights-into-pulmonary-vascular-disease-pvd-through-a-precision-medicine-approach-a-joint-nhlbi-cmref-workshop-report
#3
John H Newman, Stuart Rich, Steven H Abman, John H Alexander, John Barnard, Gerald J Beck, Raymond L Benza, Todd M Bull, Stephen Y Chan, Hyung J Chun, Declan Doogan, Jocelyn Dupuis, Serpil C Erzurum, Robert P Frantz, Mark Geraci, Hunter Gillies, Mark Gladwin, Michael P Gray, Anna R Hemnes, Roy S Herbst, Adrian F Hernandez, Nicholas S Hill, Evelyn M Horn, Kendall Hunter, Zhi-Cheng Jing, Roger Johns, Sanjay Kaul, Steven M Kawut, Tim Lahm, Jane A Leopold, Greg D Lewis, Stephen C Mathai, Vallerie V McLaughlin, Evangelos D Michelakis, Steven D Nathan, William Nichols, Grier Page, Marlene Rabinovitch, Jonathan Rich, Franz Rischard, Sharon Rounds, Sanjiv J Shah, Victor F Tapson, Naomi Lowy, Norman Stockbridge, Gail Weinmann, Lei Xiao
The Division of Lung Diseases of the National Heart, Lung and Blood Institute, (NHLBI) and the Cardiovascular Medical Education and Research Fund (CMREF), held a workshop to discuss to leverage of the anticipated scientific output from the recently launched "Redefining Pulmonary Hypertension (PH) through Pulmonary Vascular Disease Phenomics" (PVDOMICS) program. PVDOMICS is a protocol driven network to analyze PH patient populations to define novel pulmonary vascular disease (PVD) phenotypes. Basic, translational and clinical investigators, patient advocacy organizations, regulatory agencies, and pharmaceutical industry experts discussed the application of precision medicine to PVD clinical trials...
April 21, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28429083/intravenous-treprostinil-infusion-via-a-fully-implantable-pump-for-pulmonary-arterial-hypertension
#4
Ralf Ewert, Manuel J Richter, Regina Steringer-Mascherbauer, Ekkehard Grünig, Tobias J Lange, Christian F Opitz, Christian Warnke, Hossein-Ardeschir Ghofrani
OBJECTIVES: Parenteral prostanoids infused via external pumps are well-established pulmonary arterial hypertension (PAH) treatments. However, local side-effects and systemic infections restrict their use. The purpose of this study was to investigate the safety of a fully implantable treprostinil infusion pump (LENUS Pro(®)) in patients with PAH. METHODS: Thirty patients with PAH undergoing pump implantation (with stable PAH therapy for ≥3 weeks pre-implantation) were included in this prospective, multicenter, observational study (NCT01979822)...
April 20, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28427967/mechanisms-underlying-hiv-associated-non-infectious-lung-disease
#5
REVIEW
Rachel M Presti, Sonia C Flores, Brent E Palmer, Jeffrey J Atkinson, Catherine R Lesko, Bryan Lau, Andrew P Fontenot, Jesse Roman, John F McDyer, Homer L Twigg
Pulmonary disease remains a primary source of morbidity and mortality in persons living with HIV (PLWH), although the advent of potent combination antiretroviral therapy (cART) has resulted in a shift from predominantly infectious to noninfectious pulmonary complications. PLWH are at high risk for chronic obstructive pulmonary disease, pulmonary hypertension, and lung cancer even in the era of cART. The underlying mechanisms of this are incompletely understood, but recent research in both human and animal models suggest that oxidative stress, expression of matrix metalloproteinases, and genetic instability may result in lung damage which predisposes PLWH to these conditions...
April 17, 2017: Chest
https://www.readbyqxmd.com/read/28424078/interleukin-6-displays-lung-anti-inflammatory-properties-and-exerts-protective-hemodynamic-effects-in-a-double-hit-murine-acute-lung-injury
#6
Guillaume Voiriot, Keyvan Razazi, Valérie Amsellem, Jeanne Tran Van Nhieu, Shariq Abid, Serge Adnot, Armand Mekontso Dessap, Bernard Maitre
BACKGROUND: Interleukin 6 (IL-6) is a predictive factor of poor prognosis in patients with acute respiratory distress syndrome (ARDS). However, its acute pulmonary hemodynamic effects and role in lung injury have not been investigated in a clinically relevant murine model of ARDS. METHODS: We used adult C57Bl6 wild-type (WT) and IL-6 knock-out (IL-6KO) mice. The animals received intravenous recombinant human IL-6 (rHuIL-6) or vehicle followed by intratracheal lipopolysaccharide (LPS) or saline before undergoing low tidal volume mechanical ventilation (MV) for 5 h...
April 19, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28423031/comorbidities-of-rheumatoid-arthritis-results-from-the-korean-national-health-and-nutrition-examination-survey
#7
Hyemin Jeong, Sun Young Baek, Seon Woo Kim, Yeong Hee Eun, In Young Kim, Hyungjin Kim, Jaejoon Lee, Eun-Mi Koh, Hoon-Suk Cha
This study aimed to evaluate the prevalence of comorbidities in patients with rheumatoid arthritis (RA) compared with the non-RA population. The 2010-2012 Korea National Health and Nutrition Examination Survey (KNHANES), which assesses the general health status of populations in South Korea using interviews and basic health assessment, was analyzed retrospectively. Weighted prevalence and odds ratio (OR) of comorbidities were analyzed in patients with RA compared with the non-RA population. The overall weighted (n = 37,453,158) prevalence of RA was 1...
2017: PloS One
https://www.readbyqxmd.com/read/28420371/effect-of-pulmonary-arteriovenous-malformations-on-the-mechanical-properties-of-the-lungs
#8
Cécile Rotenberg, Marcel Bonay, Mostafa El Hajjam, Sandra Blivet, Alain Beauchet, Pascal Lacombe, Thierry Chinet
BACKGROUND: Pulmonary arteriovenous malformations (PAVMs) are present in approximately 15-50% individuals with hereditary hemorrhagic telangiectasia (HHT). They may be isolated but more often are multiple. The goal of this study was to evaluate the influence of PAVMs on lung mechanical properties. METHODS: We reviewed the files of all adult patients (age ≥ 18 years) referred to our Center for evaluation of HHT between 2005 and 2013. The diagnosis of HHT was based on the Curacao criteria and/or the presence of a pathogenic mutation...
April 19, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28420250/the-european-association-of-preventive-cardiology-exercise-prescription-in-everyday-practice-and-rehabilitative-training-expert-tool-a-digital-training-and-decision-support-system-for-optimized-exercise-prescription-in-cardiovascular-disease-concept-definitions
#9
Dominique Hansen, Paul Dendale, Karin Coninx, Luc Vanhees, Massimo F Piepoli, Josef Niebauer, Veronique Cornelissen, Roberto Pedretti, Eva Geurts, Gustavo R Ruiz, Ugo Corrà, Jean-Paul Schmid, Eugenio Greco, Constantinos H Davos, Frank Edelmann, Ana Abreu, Bernhard Rauch, Marco Ambrosetti, Simona S Braga, Olga Barna, Paul Beckers, Maurizio Bussotti, Robert Fagard, Pompilio Faggiano, Esteban Garcia-Porrero, Evangelia Kouidi, Michel Lamotte, Daniel Neunhäuserer, Rona Reibis, Martijn A Spruit, Christoph Stettler, Tim Takken, Cajsa Tonoli, Carlo Vigorito, Heinz Völler, Patrick Doherty
Background Exercise rehabilitation is highly recommended by current guidelines on prevention of cardiovascular disease, but its implementation is still poor. Many clinicians experience difficulties in prescribing exercise in the presence of different concomitant cardiovascular diseases and risk factors within the same patient. It was aimed to develop a digital training and decision support system for exercise prescription in cardiovascular disease patients in clinical practice: the European Association of Preventive Cardiology Exercise Prescription in Everyday Practice and Rehabilitative Training (EXPERT) tool...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28419866/o-aminobenzoyl-s-nitrosoglutathione-a-fluorogenic-cell-permeable-pseudo-substrate-for-s-nitrosoglutathione-reductase
#10
Bei Lei Sun, Lisa Palmer, Shagufta Rehman Alam, Itunuoluwa Adekoya, Kathleen Brown-Steinke, Ammasi Periasamy, Bulent Mutus
S-nitrosoglutathione reductase (GSNOR) is a multifunctional enzyme. It can catalyze NADH-dependent reduction of S-nitrosoglutathione (GSNO); as well as NAD(+)-dependent oxidation of hydroxymethylglutathione (HMGSH; an adduct formed by the spontaneous reaction between formaldehyde and glutathione). While initially recognized as the enzyme that is involved in formaldehyde detoxification, increasing amount of research evidence has shown that GSNOR also plays a significant role in nitric oxide mediated signaling through its modulation of protein S-nitrosothiol abundance via transnitrosation reactions with GSNO...
April 15, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28417056/therapeutic-effect-of-prostaglandin-e1-in-monocrotaline-induced-pulmonary-arterial-hypertension-rats
#11
Jae Chul Lee
Pulmonary arterial hypertension (PAH) is a severe pulmonary vascular disease characterized by sustained increase in pulmonary arterial pressure and excessive thickening and remodeling of distal small pulmonary arteries. During disease progression, PAH include increase in mean pulmonary arterial pressure, right ventricular (RV) enlargement, increased pulmonary vascular resistance, and smooth muscle hypertrophy in pulmonary arterioles. Several anti-PAH therapies targeting various pathways involved in PAH progression have been approved by the Food and Drug Adminstration...
March 2017: Anatomy & Cell Biology
https://www.readbyqxmd.com/read/28416930/what-are-the-prevalence-of-abdominal-aortic-aneurysm-in-patients-with-chronic-obstructive-pulmonary-diseases-and-the-characteristics-of-these-patients
#12
Ulku Aka Akturk, Nagihan Durmus Kocak, Suleyman Akturk, Mert Dumantepe, Aysun Sengul, Mehmet Arif Akcay, Makbule Ozlem Akbay, Feyyaz Kabadayi, Dilek Ernam
OBJECTIVE: To determine the prevalence of abdominal aortic aneurysm (AAA) in patients with chronic obstructive pulmonary disease (COPD) and to assess the characteristics of these patients. MATERIALS AND METHODS: Stable COPD patients (age, >40 years) were included in the study between January 2014 and June 2014. Patients with acute exacerbations and a previous lung resection were excluded. Data regarding demographic characteristics were recorded. The modified Medical Research Council (mMRC) dyspnea scale was used to assess the severity of breathlessness...
February 2017: Eurasian Journal of Medicine
https://www.readbyqxmd.com/read/28416734/the-angiotensin-receptor-blocker-losartan-inhibits-mammary-tumor-development-and-progression-to-invasive-carcinoma
#13
Rhiannon Coulson, Seng H Liew, Angela A Connelly, Nicholas S Yee, Siddhartha Deb, Beena Kumar, Ana C Vargas, Sandra A O'Toole, Adam C Parslow, Ashleigh Poh, Tracy Putoczki, Riley J Morrow, Mariah Alorro, Kyren A Lazarus, Evie F W Yeap, Kelly L Walton, Craig A Harrison, Natalie J Hannan, Amee J George, Colin D Clyne, Matthias Ernst, Andrew M Allen, Ashwini L Chand
Drugs that target the Renin-Angiotensin System (RAS) have recently come into focus for their potential utility as cancer treatments. The use of Angiotensin Receptor Blockers (ARBs) and Angiotensin-Converting Enzyme (ACE) Inhibitors (ACEIs) to manage hypertension in cancer patients is correlated with improved survival outcomes for renal, prostate, breast and small cell lung cancer. Previous studies demonstrate that the Angiotensin Receptor Type I (AT1R) is linked to breast cancer pathogenesis, with unbiased analysis of gene-expression studies identifying significant up-regulation of AGTR1, the gene encoding AT1R in ER+ve/HER2-ve tumors correlating with poor prognosis...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28416592/-wnt-er-is-coming-wnt-signalling-in-chronic-lung-diseases
#14
H A Baarsma, M Königshoff
Chronic lung diseases represent a major public health problem with only limited therapeutic options. An important unmet need is to identify compounds and drugs that target key molecular pathways involved in the pathogenesis of chronic lung diseases. Over the last decade, there has been extensive interest in investigating Wingless/integrase-1 (WNT) signalling pathways; and WNT signal alterations have been linked to pulmonary disease pathogenesis and progression. Here, we comprehensively review the cumulative evidence for WNT pathway alterations in chronic lung pathologies, including idiopathic pulmonary fibrosis, pulmonary arterial hypertension, asthma and COPD...
April 17, 2017: Thorax
https://www.readbyqxmd.com/read/28414672/a-strong-and-fortuitous-case-of-dyspnea
#15
R Hammer, M Sciaudone
CASE: A 48 year-old man with no past medical history was sent to our emergency department (ED); from a primary care clinic for hypertensive urgency of 200/130. The man reported an intermittent non-productive cough of approximately one year's duration and worsening dyspnea on exertion and orthopnea over the last month with lower extremity swelling. Of note, he emigrated from Honduras twenty years ago. Blood pressure normalized with administration of Lasix in the ED. Physical exam revealed rales in lung bases bilaterally, jugular venous distension, lower extremity pitting edema with serpiginous patches of erythema and excoriation, and a cardiac gallop...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28413775/an-interesting-case-of-mycoplasma-pneumonia-associated-multisystem-involvement-and-diffuse-alveolar-hemorrhage
#16
Rashmi Mishra, Edison Cano, Sindhaghatta Venkatram, Gilda Diaz-Fuentes
Severe mycoplasma pneumonia is a rare entity with only 0.5-2% of cases having a fulminant course. We present a 74-year-old woman with hypertension, diabetes mellitus and remote history of marginal zone B-cell lymphoma admitted with abdominal pain and diarrhea of 1-2 days associated with body-aches, dyspnea, dry cough and weight loss for 2-3 weeks. On physical exam, she was febrile, tachypneic, tachycardic and hypoxic on room air. Chest examination revealed diffuse crackles and end-expiratory wheezes. Laboratory tests showed anemia, acute-on-chronic kidney injury and hyaline casts and epithelial cells in the urine analysis...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28413774/a-diffuse-lung-emphysema-severe-pulmonary-hypertension-and-lack-of-airflow-limitation
#17
Morgane Faure, Emmanuel Gomez, Peter Dorfmüller, Damien Mandry, Matthieu Canuet, Romain Kessler, François Chabot, Ari Chaouat
Pulmonary veno-occlusive disease is characterized by remodeling of pulmonary arteries, capillaries and venules. We report a case of diffuse lung emphysema and pulmonary veno-occlusive disease with the characteristic of having no airflow limitation. A very low diffusing capacity for carbon monoxide and results of high-resolution computed tomography of the chest suggested pulmonary veno-occlusive disease. The diagnosis was confirmed on histological analysis after lung transplantation. The combination of results of the computed tomography of the chest and the histological analysis suggested a relationship between diffuse lung emphysema and remodeling of pulmonary vessels...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28413064/systemic-sclerosis
#18
REVIEW
Christopher P Denton, Dinesh Khanna
Systemic sclerosis, also called scleroderma, is an immune-mediated rheumatic disease that is characterised by fibrosis of the skin and internal organs and vasculopathy. Although systemic sclerosis is uncommon, it has a high morbidity and mortality. Improved understanding of systemic sclerosis has allowed better management of the disease, including improved classification and more systematic assessment and follow-up. Additionally, treatments for specific complications have emerged and a growing evidence base supports the use of immune suppression for the treatment of skin and lung fibrosis...
April 13, 2017: Lancet
https://www.readbyqxmd.com/read/28412726/inhaled-corticosteroids-have-a-protective-effect-against-lung-cancer-in-female-patients-with-chronic-obstructive-pulmonary-disease-a-nationwide-population-based-cohort-study
#19
Shih-Feng Liu, Ho-Chang Kuo, Meng-Chih Lin, Shu-Chen Ho, Mei-Lien Tu, Yu-Mu Chen, Yung-Che Chen, Wen-Feng Fang, Chin-Chou Wang, Guan-Heng Liu
Whether the use of inhaled corticosteroids (ICS) protects patients with chronic obstructive pulmonary disease (COPD) from lung cancer remains undetermined. In this retrospective nationwide population-based cohort study, we extracted data of 13,686 female COPD patients (ICS users, n = 1,290, ICS non-users, n = 12,396) diagnosed between 1997 and 2009 from the Taiwan's National Health Insurance database. These patients were followed-up until 2011, and lung cancer incidence was determined. Cox regression analysis was used to estimate hazard ratios (HRs) for lung cancer incidence...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28412426/unraveling-the-rv-ejection-doppler%C3%A2-envelope-insight-into-pulmonary-artery-hemodynamics-and-disease%C3%A2-severity
#20
Hiroko Takahama, Robert B McCully, Robert P Frantz, Garvan C Kane
OBJECTIVES: The purpose of this study was to characterize the profiles of right ventricular outflow tract (RVOT) Doppler flow velocity envelopes in patients with pulmonary arterial hypertension (PAH) and to establish whether changes in the RVOT flow profile related to patient outcome. BACKGROUND: The RVOT systolic flow profile is frequently abnormal, with findings of a mid-systolic flow deceleration and notching, previously proposed as an indicator of elevated pulmonary vascular resistance (PVR)...
April 7, 2017: JACC. Cardiovascular Imaging
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