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Pulmonary development

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https://www.readbyqxmd.com/read/29161531/pulmonary-safety-and-tolerability-of-inhaled-levodopa-cvt-301-administered-to-patients-with-parkinson-s-disease
#1
Peter A LeWitt, Rajesh Pahwa, Alexander Sedkov, Ann Corbin, Richard Batycky, Harald Murck
BACKGROUND: CVT-301, an inhaled levodopa (LD) formulation, is under development for relief of OFF periods in Parkinson's disease (PD). Previously, we reported that CVT-301 improved OFF symptoms relative to placebo. In this study, we evaluate pulmonary function in patients treated with a single dose of CVT-301 or placebo for 3 hours, or received multiple doses/day for 4 weeks. METHODS: As part of two phase 2 studies, pulmonary safety and tolerability of CVT-301 were evaluated in PD patients experiencing motor fluctuations (≥2 hours OFF/day), Hoehn and Yahr stage 1-3, and forced expiratory volume in 1 second/forced vital capacity ratio ≥75% of predicted (in ON state)...
November 21, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/29161091/dealing-with-stress-defective-metabolic-adaptation-in-chronic-obstructive-pulmonary-disease-pathogenesis
#2
Charalambos Michaeloudes, Pankaj K Bhavsar, Sharon Mumby, Kian Fan Chung, Ian M Adcock
The mitochondrion is the main site of energy production and a hub of key signaling pathways. It is also central in stress-adaptive response due to its dynamic morphology and ability to interact with other organelles. In response to stress, mitochondria fuse into networks to increase bioenergetic efficiency and protect against oxidative damage. Mitochondrial damage triggers segregation of damaged mitochondria from the mitochondrial network through fission and their proteolytic degradation by mitophagy. Post-translational modifications of the mitochondrial proteome and nuclear cross-talk lead to reprogramming of metabolic gene expression to maintain energy production and redox balance...
November 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29161089/protein-folding-and-the-challenges-of-maintaining-endoplasmic-reticulum-proteostasis-in-idiopathic-pulmonary-fibrosis
#3
Freddy Romero, Ross Summer
Alveolar epithelial type II (AEII) cells are "professional" secretory cells that synthesize and secrete massive quantities of proteins to produce pulmonary surfactant and maintain airway immune defenses. To facilitate this high level of protein synthesis, AEII cells are equipped with an elaborate endoplasmic reticulum (ER) structure and possess an abundance of the machinery needed to fold, assemble, and secrete proteins. However, conditions that suddenly increase the quantity of new proteins entering the ER or that impede the capacity of the ER to fold proteins can cause misfolded or unfolded proteins to accumulate in the ER lumen, also called ER stress...
November 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29161079/a-new-frontier-in-immunometabolism-cholesterol-in-lung-health-and-disease
#4
Michael B Fessler
The lung has a unique relationship to cholesterol that is shaped by its singular physiology. On the one hand, the lungs receive the full cardiac output and have a predominant dependence on plasma lipoprotein uptake for their cholesterol supply. On the other hand, surfactant lipids, including cholesterol, are continually susceptible to oxidation owing to direct environmental exposure and must be cleared or recycled because of the very narrow biophysical mandates placed upon surfactant lipid composition. Interestingly, increased lipid-laden macrophage "foam cells" have been noted in a wide range of human lung pathologies...
November 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29160572/rapid-on-site-evaluation-of-routine-biochemical-parameters-to-predict-right-ventricular-dysfunction-in-and-the-prognosis-of-patients-with-acute-pulmonary-embolism-upon-admission-to-the-emergency-room
#5
Dong Jia, Fan Liu, Qin Zhang, Guang-Qiao Zeng, Xue-Lian Li, Gang Hou
INTRODUCTION: Patients with acute pulmonary embolism(APE)who present with right ventricular dysfunction (RVD) have a worse prognosis. This study aimed to evaluate the value of routine biochemical parameters in predicting RVD and 30-day mortality in patients with APE. METHODS: We retrospectively collected the clinical data for 154 enrolled patients, including the neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), D-dimer, cardiac troponin I (cTnI), and N-terminal pro-brain natriuretic peptide (NT-proBNP)...
November 21, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/29160424/effect-of-prophylactic-non-invasive-mechanical-ventilation-on-functional-capacity-after-heart-valve-replacement-a-clinical-trial
#6
Amaro Afrânio de Araújo-Filho, Manoel Luiz de Cerqueira-Neto, Lucas de Assis Pereira Cacau, Géssica Uruga Oliveira, Telma Cristina Fontes Cerqueira, Valter Joviniano de Santana-Filho
OBJECTIVE: During cardiac surgery, several factors contribute to the development of postoperative pulmonary complications. Non-invasive ventilation is a promising therapeutic tool for improving the functionality of this type of patient. The aim of this study is to evaluate the functional capacity and length of stay of patients in a nosocomial intensive care unit who underwent prophylactic non-invasive ventilation after heart valve replacement. METHOD: The study was a controlled clinical trial, comprising 50 individuals of both sexes who were allocated by randomization into two groups with 25 patients in each group: the control group and experimental group...
October 2017: Clinics
https://www.readbyqxmd.com/read/29159668/new-pulmonary-hypertension-model-in-conscious-dogs-to-investigate-pulmonary-selectivity-of-acute-pharmacological-interventions
#7
Thomas Mondritzki, Philip Boehme, Lena Schramm, Julia Vogel, Ilka Mathar, Peter Ellinghaus, Peter Kolkhof, Erwin Bischoff, Jörg Hüser, Wilfried Dinh, Peter Sandner, Hubert Truebel
PURPOSE: Testing of investigational drugs in animal models is a critical step in drug development. Current models of pulmonary hypertension (PH) have limitations. The most relevant outcome parameters such as pulmonary artery pressure (PAP) are measured invasively which requires anesthesia of the animal. We developed a new canine PH model in which pulmonary vasodilators can be characterized in conscious dogs and lung selectivity can be assessed non-invasively. METHODS: Telemetry devices were implanted to measure relevant hemodynamic parameters in conscious dogs...
November 20, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29159232/application-of-bi-clustering-of-gene-expression-data-and-gene-set-enrichment-analysis-methods-to-identify-potentially-disease-causing-nanomaterials
#8
Andrew Williams, Sabina Halappanavar
This article contains data related to the research article 'Application of bi-clustering of gene expression data and gene set enrichment analysis methods to identify potentially disease causing nanomaterials' (Williams and Halappanavar, 2015) [1]. The presence of diverse types of nanomaterials (NMs) in commerce has grown significantly in the past decade and as a result, human exposure to these materials in the environment is inevitable. The traditional toxicity testing approaches that are reliant on animals are both time- and cost- intensive; employing which, it is not possible to complete the challenging task of safety assessment of NMs currently on the market in a timely manner...
December 2017: Data in Brief
https://www.readbyqxmd.com/read/29159034/hamman-rich-syndrome
#9
Arshiya Mastan, Nilaani Murugesu, Adil Hasnain, Terry O'Shaughnessy, Vladimir Macavei
INTRODUCTION: Acute interstitial pneumonia is a rare but important diagnosis, associated with a high mortality rate and important to identify early. CASE PRESENTATION: A 76 year-old individual presented to hospital with a two-week history of shortness of breath, fevers and a non-productive cough. Treatment initially was for lower respiratory tract infection but returned to hospital three days later as her shortness of breath and peripheral oedema was worsening despite diuretic treatment...
2018: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/29158946/introduction-to-the-movement-system-as-the-foundation-for-physical-therapist-practice-education-and-research
#10
Lisa Saladin, Michael Voight
In 2013, the American Physical Therapy Association (APTA) adopted an inspiring new vision, "Transforming society by optimizing movement to improve the human experience." This new vision for our profession calls us to action as physical therapists to transform society by using our skills, knowledge, and expertise related to the movement system in order to optimize movement, promote health and wellness, mitigate the progression of impairments, and prevent the development of (additional) disability. The guiding principle of the new vision is "identity," which can be summarized as "The physical therapy profession will define and promote the movement system as the foundation for optimizing movement to improve the health of society...
November 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29158938/orthodeoxia-without-platypnea-in-hereditary-hemorrhagic-telangiectasia-in-the-presence-of-a-cerebral-abscess-and-multiple-pulmonary-arteriovenous-malformations-unusual-complications-and-transcatheter-endovascular-treatment
#11
Carlos Salazar, Jacky Bruce Blank, Veronica Palmero
Hereditary hemorrhagic telangiectasia is a rare autosomal-dominant condition affecting visceral blood vessel development. Cerebral and most commonly pulmonary arteriovenous malformations are found in the majority of symptomatic patients. The most common complications include embolic strokes and cerebral abscesses, which have been attributed to abnormal vessel communications. Platypnea orthodeoxia is a rare condition that presents dyspnea and oxygen desaturation when adopting an upright position and is relieved on decubitus...
2017: Case Reports in Pulmonology
https://www.readbyqxmd.com/read/29158679/treatment-of-pulmonary-hypertension-with-left-heart-disease-a-concise-review
#12
REVIEW
Anish Desai, Shilpa A Desouza
Pulmonary hypertension (PH) is defined by a mean pulmonary artery pressure ≥ 25 mmHg, as determined by right heart catheterization. Pulmonary arterial hypertension (PAH) can no longer be considered an orphan disease given the increase in awareness and availability of new drugs. PH carries with it a dismal prognosis and leads to significant morbidity and mortality. Symptoms can range from dyspnea, fatigue and chest pain to right ventricular failure and death. PH is divided into five groups by the World Health Organization (WHO), based on etiology...
2017: Vascular Health and Risk Management
https://www.readbyqxmd.com/read/29157947/vascular-endothelial-specific-il-4r%C3%AE-abl1-kinase-signaling-axis-regulates-severity-of-ige-mediated-anaphylactic-reactions
#13
Amnah Yamani, David Wu, Lisa Waggoner, Taeko Noah, Anthony J Koleske, Fred Finkelman, Simon P Hogan
BACKGROUND: Severe IgE-mediated, food-induced anaphylactic reactions are characterized by pulmonary venous vasodilatation and fluid extravasation, which is thought to lead to the life-threatening anaphylactic phenotype. The underlying immunological and cellular processes involved in driving fluid extravasation and the severe anaphylactic phenotype are not fully elucidated. OBJECTIVE: To define the interaction and requirement of IL-4 and vascular endothelial (VE) IL-4Rα chain signaling in histamine-ABL1-mediated VE dysfunction and fluid extravasation in the severity of IgE-mediated anaphylactic reactions in mice...
November 17, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29157525/transcatheter-tricuspid-valve-replacement
#14
REVIEW
Amar Krishnaswamy, Jose Navia, Samir R Kapadia
Tricuspid regurgitation (TR) is a common entity, most commonly functional in nature due to right-sided dysfunction in the setting of concomitant cardiac disease or pulmonary hypertension. Patients living with TR often experience numerous limitations as a result of right-sided heart failure symptoms, including functional decline, frequent hospitalizations, liver failure, and kidney failure. Furthermore, patients with significant TR demonstrate worse survival, although a cause-and-effect relationship has not been proven...
January 2018: Interventional cardiology clinics
https://www.readbyqxmd.com/read/29157383/-18-f-fluoro-2-deoxy-d-glucose-pet-computed-tomography-evaluation-of-lung-cancer-in-populations-with-high-prevalence-of-tuberculosis-and-other-granulomatous-disease
#15
REVIEW
Alexandre Niyonkuru, Khamis Hassan Bakari, Xiaoli Lan
Pulmonary tuberculosis infects one-third of world's population and is responsible for the high mortality and morbidity in developing countries. The presence of a high number of macrophages and lymphocytes in active tuberculosis granulomas is associated with high uptake of (18)F-fluoro-2-deoxy-d-glucose on PET imaging mimicking lung cancer. In many cases, radiological features of pulmonary tuberculosis are undistinguishable from lung cancer, which makes the diagnosis difficult. Clinical history and computed tomographic (CT) findings on a hybrid PET/CT are as important as findings on a PET in the diagnosis of lung cancer...
January 2018: PET Clinics
https://www.readbyqxmd.com/read/29156550/can-youthful-mesenchymal-stem-cells-from-wharton-s-jelly-bring-a-breath-of-fresh-air-for-copd
#16
REVIEW
Andrzej M Janczewski, Joanna Wojtkiewicz, Ewa Malinowska, Anna Doboszyńska
Chronic obstructive pulmonary disease (COPD) is a major global cause of morbidity and mortality, projected to become the 3rd cause of disease mortality worldwide by 2020. COPD is characterized by persistent and not fully reversible airflow limitation that is usually progressive and is associated with an abnormal chronic inflammatory response of the lung to noxious agents including cigarette smoke. Currently available therapeutic strategies aim to ease COPD symptoms but cannot prevent its progress or regenerate physiological lung structure or function...
November 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29156356/limax-extract-ameliorates-cigarette-smoke-induced-chronic-obstructive-pulmonary-disease-in-mice
#17
Xue Liang, Jian Wang, Ruijuan Guan, Li Zhao, Defu Li, Zhen Long, Qian Yang, Jingyi Xu, Ziyi Wang, Jinkui Xie, Wenju Lu
Chronic obstructive pulmonary disease (COPD) is a chronic, progressive and lethal lung disease with few treatments. Limax, a mollusk with lung, has been widely used to control phlegm and cough in China, yet whether Limax has a positive effect on COPD is unknown. This study investigated the effects of water-soluble extract from Limax on COPD development and the underlying mechanisms. The results showed that Limax extract improved lung function, relieved emphysema and suppressed the inflammation in the lungs of CS-challenged mice, as evidenced by diminished release of IL-6, KC, TNF-α, IFN-γ, Muc5AC, IL-17 and diminished mRNA expression of Muc5B...
November 17, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29156069/the-role-of-intraoperative-intermittent-pneumatic-compression-devices-in-venous-thromboembolism-prophylaxis-in-total-hip-and-total-knee-arthroplasty
#18
Vineet Tyagi, Paul Tomaszewski, Adam Lukasiewicz, Shahana Theriault, Richard Pelker
Venous thromboembolism (VTE) is a common complication after total hip arthroplasty (THA) and total knee arthroplasty (TKA), occurring in up to 85% of patients who are not treated with prophylaxis. The initiation of VTE development may occur intraoperatively. This study investigated whether this gap in VTE prophylaxis can be addressed by the use of intraoperative intermittent pneumatic compression devices (IPCDs) and if intraoperative IPCDs have a meaningful benefit in preventing symptomatic VTE. The authors defined symptomatic VTE as deep venous thrombosis in either lower extremity or a pulmonary embolism...
November 20, 2017: Orthopedics
https://www.readbyqxmd.com/read/29155942/detergent-based-decellularization-strategy-preserves-macro-and-microstructure-of-heart-valves
#19
Jessica Haupt, Georg Lutter, Stanislav N Gorb, Dan T Simionescu, Derk Frank, Jette Seiler, Alina Paur, Irma Haben
OBJECTIVES: Biological tissue has great potential to function as bioprostheses in patients for heart valve replacement. As these matrices are mainly xenogenic, the immunogenicity needs to be reduced by decellularization steps. Reseeding of bioscaffolds has tremendous potential to prevent calcification upon implantation, so intact microstructure of the material is mandatory. An optimal decellularization protocol of heart valves resulting in adequate preservation of the extracellular architecture has still not been developed...
October 9, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29155707/optimized-lc-ms-ms-method-for-the-high-throughput-analysis-of-clinical-samples-of-ivacaftor-its-major-metabolites-and-lumacaftor-in-biological-fluids-of-cystic-fibrosis-patients
#20
Elena K Schneider, Felisa Reyes-Ortega, Jian Li, Tony Velkov
Defects in the cystic fibrosis trans-membrane conductance regulator (CFTR) are the cause of cystic fibrosis (CF), a disease with life-threatening pulmonary manifestations. Ivacaftor (IVA) and ivacaftor-lumacaftor (LUMA) combination are two new breakthrough CF drugs that directly modulate the activity and trafficking of the defective CFTR-protein. However, there is still a dearth of understanding on pharmacokinetic/pharmacodynamic parameters and the pharmacology of ivacaftor and lumacaftor. The HPLC-MS technique for the simultaneous analysis of the concentrations of ivacaftor, hydroxymethyl-ivacaftor, ivacaftor-carboxylate, and lumacaftor in biological fluids in patients receiving standard ivacaftor or ivacaftor-lumacaftor combination therapy has previously been developed by our group and partially validated to FDA standards...
October 15, 2017: Journal of Visualized Experiments: JoVE
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