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https://www.readbyqxmd.com/read/28214928/dendritic-cell-rehab-new-strategies-to-unleash-therapeutic-immunity-in-ovarian-cancer
#1
REVIEW
Chang-Suk Chae, Eli Teran-Cabanillas, Juan R Cubillos-Ruiz
Immune-based therapies that induce remarkable and durable responses against melanoma and lung cancer have unfortunately demonstrated limited success in ovarian cancer patients. This is likely due to the exceptional immunoregulatory nature of ovarian tumors, which employ numerous strategies to effectively suppress anti-tumor immunity. Here, we summarize a decade of research indicating that ovarian cancers possess an exquisite capacity to subvert the activity of host dendritic cells (DCs) as a key mechanism to impede the development and maintenance of protective T cell-based immune responses...
February 18, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28214133/dynamic-hyperinflation-in-patients-with-asthma-and-exercise-induced-bronchoconstriction
#2
Olga Mediano, Raquel Casitas, Carlos Villasante, Elisabet Martínez-Cerón, Raúl Galera, Ester Zamarrón, Francisco García-Río
BACKGROUND: Little is known about the behavior of operative lung volumes during exercise in patients with asthma and exercise-induced bronchoconstriction (EIB). OBJECTIVES: To compare the presence of dynamic hyperinflation (DH) in patients with mild asthma with and without EIB and in healthy individuals and to relate the changes in end-expiratory lung volume (EELV) with postexercise airflow reduction. METHODS: A total of 122 consecutive stable patients (>12 years of age) with mild asthma and 38 controls were studied...
February 14, 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28214081/fev1-and-fvc-predict-all-cause-mortality-independent-of-cardiac-function-results-from-the-population-based-gutenberg-health-study
#3
Christina Magnussen, Francisco M Ojeda, Nargiz Rzayeva, Tanja Zeller, Christoph R Sinning, Norbert Pfeiffer, Manfred Beutel, Maria Blettner, Karl J Lackner, Stefan Blankenberg, Thomas Münzel, Klaus F Rabe, Philipp S Wild, Renate B Schnabel
BACKGROUND: Lung function has previously been related to increased mortality. Whether pulmonary impairment is associated with an increased mortality independent of cardiac dysfunction remains unclear. METHODS: In 15010 individuals from the general population (age range 35-74years, 51% men) in the Gutenberg Health Study we performed spirometry and transthoracic echocardiography. N-terminal pro-B-type natriuretic peptide (Nt-proBNP) and high-sensitive troponin I (hsTnI) were measured in all individuals...
February 3, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28213168/patients-with-total-knee-arthroplasty-do-not-use-all-of-their-available-range-of-knee-flexion-during-functional-activities
#4
Jodie A McClelland, Julian A Feller, Hylton B Menz, Kate E Webster
BACKGROUND: Recent research designed to improve outcome from total knee arthroplasty has included focus on strategies that increase the range of post-operative knee flexion. Patients with knee arthroplasty can now expect >100° of knee flexion following surgery, but it is not clear whether this improved range of motion facilitates outcome or whether patients take advantage of this range when completing daily functional activities. The aim of this study was to investigate the knee flexion angles used during daily functional activities that specifically required high degrees of knee flexion...
February 7, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28213003/the-expression-of-pd-l1-protein-as-a-prognostic-factor-in-lung-squamous-cell-carcinoma
#5
Kazuki Takada, Tatsuro Okamoto, Gouji Toyokawa, Yuka Kozuma, Taichi Matsubara, Naoki Haratake, Takaki Akamine, Shinkichi Takamori, Masakazu Katsura, Fumihiro Shoji, Yoshinao Oda, Yoshihiko Maehara
BACKGROUND: Programmed cell death-1 (PD-1)/programmed cell death-ligand 1 (PD-L1) pathway-targeted immunotherapy has become the standard option of care in the management of lung cancer. The expression of the PD-L1 protein in lung cancer is expected to be a prognostic factor or to predict the response to PD-1-blocking antibodies. However, the association between PD-L1 positivity and the clinicopathological features and patient outcomes in lung squamous cell carcinoma (SCC) remains unclear because the definitive cut-off value for the expression of PD-L1 protein remains to be established...
February 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28208954/effect-of-surgical-curve-correction-on-exercise-tolerance-and-physical-capacities-in-patients-of-severe-spinal-deformity
#6
Prateek C Patil, Ashok K Rathod, Mandar Borde, Vishwajeet Singh, Hemant U Singh
INTRODUCTION: Traditionally, surgical intervention for patients with a spinal deformity has been considered for cosmetic benefits, but surgical intervention can alter the lung physiology or volumes and in turn leads to increase in physical capacity and exercise tolerance. Therefore, we conducted this to determine whether a surgical correction would restore the lung physiology, physical capacity and exercise tolerance in patients with kyphoscoliosis. AIM: To evaluate the usage of six-minute walk test scores and modified Borg scores as tools/measures for exercise tolerance in patients with spinal deformity and to study the effects of surgical correction of spinal deformity on exercise tolerance with above parameters as the measures...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208028/early-life-wildfire-smoke-exposure-is-associated-with-immune-dysregulation-and-lung-function-decrements-in-adolescence
#7
Carolyn Black, Joan E Gerriets, Justin H Fontaine, Richart W Harper, Nicholas J Kenyon, Fern Tablin, Edward S Schelegle, Lisa A Miller
RATIONALE: The long-term health effects of wildfire smoke exposure in pediatric populations are not known. OBJECTIVE: To determine if early life exposure to wildfire smoke can affect parameters of immunity and airways physiology that are detectable with maturity. METHODS: We studied a mixed gender cohort of rhesus macaque monkeys that were exposed as infants to ambient wood smoke from a series of Northern California wildfires in the summer of 2008...
February 16, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28206676/thoracic-ct-mri-co-registration-for-regional-pulmonary-structure-function-measurements-of-obstructive-lung-disease
#8
Fumin Guo, Sarah Svenningsen, Miranda Kirby, Dante P I Capaldi, Khadija Sheikh, Aaron Fenster, Grace Parraga
PURPOSE: Recent pulmonary imaging research has revealed that in patients with chronic obstructive pulmonary disease (COPD) and asthma, structural and functional abnormalities are spatially heterogeneous. This novel information may help optimize treatment in individual patients, monitor interventional efficacy and develop new treatments. Moreover, by automating the measurement of regional biomarkers for the 19 different anatomical lung segments, there is an opportunity to embed imaging biomarkers into clinically-acceptable clinical workflows and improve lung disease clinical care...
February 16, 2017: Medical Physics
https://www.readbyqxmd.com/read/28205623/preventive-effects-of-carnosine-on-lipopolysaccharide-induced-lung-injury
#9
Ken-Ichiro Tanaka, Toshifumi Sugizaki, Yuki Kanda, Fumiya Tamura, Tomomi Niino, Masahiro Kawahara
Acute respiratory distress syndrome (ARDS) is a potentially devastating form of acute lung injury, which involves neutrophilic inflammation and pulmonary cell death. Reactive oxygen species (ROS) play important roles in ARDS development. New compounds for inhibiting the onset and progression of ARDS are required. Carnosine (β-alanyl-L-histidine) is a small di-peptide with numerous activities, including antioxidant effects, metal chelation, proton buffering capacity and the inhibition of protein carbonylation and glycoxidation...
February 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28203073/health-status-and-lung-function-in-the-swedish-alpha-1-antitrypsin-deficient-cohort-identified-by-neonatal-screening-at-the-age-of-37-40-years
#10
Eeva Piitulainen, Behrouz Mostafavi, Hanan A Tanash
BACKGROUND: Severe alpha 1-antitrypsin (AAT) deficiency (genotype PiZZ) is a well-known risk factor for COPD. A cohort of PiZZ and PiSZ individuals was identified by the Swedish national neonatal AAT screening program in 1972-1974 and followed up regularly since birth. Our aim was to study the lung function, respiratory symptoms and health status at the age of 38 years in comparison with a random sample of control subjects selected from the population registry. METHODS: The study group included 120 PiZZ, 46 PiSZ and 164 control subjects (PiMM), who answered a questionnaire on smoking habits and symptoms and the Saint George Respiratory Questionnaire (SGRQ) on quality of life...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28201975/selective-inhibition-of-phosphodiesterases-4a-b-c-and-d-isoforms-in-chronic-respiratory-diseases-current-and-future-evidences
#11
Sonia Contreras, Javier Milara, Esteban Morcillo, Julio Cortijo
Chronic respiratory diseases affect millions of people every day. According to World Health Organization estimates, ~235 million people suffer from asthma, ~64 million suffer from chronic obstructive pulmonary disease (COPD), and millions more suffer from allergic rhinitis around the world. In recent last years, the first phosphodiesterase 4 (PDE4) inhibitor, roflumilast, was approved as a treatment to reduce the risk of exacerbations in stable and severe COPD associated with chronic bronchitis and a history of exacerbations...
February 13, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28199899/role-of-outer-membrane-protein-t-in-pathogenicity-of-avian-pathogenic-escherichia-coli
#12
Hassan M A Hejair, Jiale Ma, Yingchu Zhu, Min Sun, Wenyang Dong, Yue Zhang, Zihao Pan, Wei Zhang, Huochun Yao
An outer membrane protein T (OmpT) could play a vital role in the pathogenesis of the neonatal meningitis Escherichia coli (NMEC) in human and animals. However, whether ompT plays a role in avian pathogenic E. coli (APEC) infection remains unclear. In this study we evaluated the potential of ompT in APEC pathogenesis. An ompT gene was deleted from APEC mutant strain (TW-XM) was constructed and characterized. The inactivation of ompT reduced significantly the adherence and invasion capabilities of APEC to mouse brain microvascular endothelial cell (BMEC) bEnd...
January 27, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28199407/keratin14-mrna-expression-in-human-pneumocytes-during-quiescence-repair-and-disease
#13
Marco Confalonieri, Emanuele Buratti, Gabriele Grassi, Rossana Bussani, Marco Chilosi, Rossella Farra, Michela Abrami, Cristiana Stuani, Francesco Salton, Miriam Ficial, Paola Confalonieri, Lorenzo Zandonà, Maurizio Romano
The lung alveoli slowly self-renew pneumocytes, but their facultative regeneration capacity is rapidly efficient after an injury, so fibrosis infrequently occurs. We recently observed Keratin 14 (KRT14) expression during diffuse alveolar damage (DAD), but not in controls. We wonder if KRT14 may be a marker of pneumocyte transition from quiescence to regeneration. Quantitative PCR and Western blot analyses highlighted the presence of KRT14 (mRNA and protein) only in human lung samples with DAD or interstitial lung disease (ILD)...
2017: PloS One
https://www.readbyqxmd.com/read/28198571/pulmonary-mri-morphometry-modeling-of-airspace-enlargement-in-chronic-obstructive-pulmonary-disease-and-alpha-1-antitrypsin-deficiency
#14
Alexei Ouriadov, Eric Lessard, Khadija Sheikh, Grace Parraga
PURPOSE: We generated lung morphometry measurements using single-breath diffusion-weighted MRI and three different acinar duct models in healthy participants and patients with emphysema stemming from chronic obstructive lung disease (COPD) and alpha-1 antitrypsin deficiency (AATD). METHODS: Single-breath-inhaled (3) He MRI with five diffusion sensitizations (b-value = 0, 1.6, 3.2, 4.8, and 6.4 s/cm(2) ) was used, and signal intensities were fit using a cylindrical and single-compartment acinar-duct model to estimate MRI-derived mean linear intercept (Lm ) and surface-to-volume ratio (S/V)...
February 15, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28198075/exercise-induced-b-lines-identify-worse-functional-and-prognostic-stage-in-heart-failure-patients-with-depressed-left-ventricular-ejection-fraction
#15
Maria Chiara Scali, Lauro Cortigiani, Anca Simionuc, Dario Gregori, Mario Marzilli, Eugenio Picano
AIMS: Exercise stress echocardiography (ESE) is recommended by the European Society of Cardiology guidelines for the evaluation of heart failure (HF) patients. Recently, lung ultrasound (LUS) has been proposed for the assessment of extravascular lung water through B-lines. The aim of this study was to assess B-lines during ESE in HF. METHODS AND RESULTS: Standard transthoracic and LUS evaluation was performed during semi-supine ESE in 103 NYHA class I-III HF patients (76 male; mean age 64 ± 12 years) with depressed LVEF (35 ± 8%)...
February 15, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28197800/small-airway-obstruction-in-chronic-obstructive-pulmonary-disease-potential-parameters-for-early-detection
#16
Tomasz Piorunek, Magdalena Kostrzewska, Marta Stelmach-Mardas, Marcin Mardas, Sławomir Michalak, Joanna Goździk-Spychalska, Halina Batura-Gabryel
The impulse oscillometry (IOS) is recognized as a complementary method to spirometry in the diagnostics of obstructive pulmonary disorders. The IOS enables to measure total respiratory resistance (R5) and proximal respiratory resistance (R20), with the R5-R20 difference reflecting small airway resistance. This study seeks to evaluate the usefulness of R5-R20, maximal mid-expiratory flow (MMEF), and forced expiratory volume in 3 s/forced vital capacity ratio (FEV3/FVC), in the assessment of small airway obstruction in chronic obstructive pulmonary disease (COPD)...
February 15, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28196935/air-stacking-a-detailed-look-into-physiological-acute-effects-on-cough-peak-flow-and-chest-wall-volumes-of-healthy-subjects
#17
Antonio Sarmento, Armèle F Dornelas de Andrade, Íllia Nadinne Df Lima, Andrea Aliverti, Guilherme Augusto de Freitas Fregonezi, Vanessa R Resqueti
BACKGROUND: Air stacking (AS) is a lung insufflation method that requires the use of a manual insufflator to provide air volumes higher than inspiratory capacity. Neuromuscular patients benefit the most from the maneuver; however, the acute effects of AS in healthy subjects are still unclear. METHODS: Twenty healthy subjects (8 males) were studied by optoelectronic plethysmography to investigate the immediate effects of AS on cough peak flow, operational volume variations, distribution of these volumes in the chest wall compartments (pulmonary rib cage, abdominal rib cage, and abdominal), breathing pattern, and shortening velocity of the respiratory muscles during a protocol that included vital capacity maneuvers and spontaneous coughs before and after AS...
February 14, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28194830/parasternal-intercostal-muscle-activity-during-methacholine-induced-bronchoconstriction
#18
Victoria MacBean, Claire L Pringle, Alan C Lunt, Keith D Sharp, Ashraf Ali, Anne Greenough, John Moxham, Gerrard F Rafferty
Neural respiratory drive, measured via the parasternal intercostal electromyogram (EMGpara), provides a non-invasive index of the load-capacity balance of the respiratory muscle pump. Previous studies in patients with obstructive lung disease have shown strong relationships between EMGpara and the extent of both airflow obstruction and hyperinflation. The relative influence of the two factors has not, however, been described. Airflow obstruction was induced via methacholine challenge testing in twenty-five adult humans...
February 14, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28194607/il-17a-monoclonal-antibody-partly-reverses-the-glucocorticoids-insensitivity-in-mice-exposed-to-ozonec
#19
Xia Fei, Peng-Yu Zhang, Xue Zhang, Guo-Qing Zhang, Wu-Ping Bao, Ying-Ying Zhang, Min Zhang, Xin Zhou
Exposure to ozone has been associated with airway inflammation and glucocorticoid insensitivity. This study aimed to observe the capacity of anti-murine interleukin-17A monoclonal antibody (IL-17mAb) to reverse ozone-induced glucocorticoid insensitivity and to detect its effects with glucocorticoids in protecting against airway inflammation. After C57/BL6 mice were exposed to ozone (2.5 ppm; 3 h) for 12 times over 6 weeks, PBS, IL-17mAb (50 ug/ml), dexamethasone (2 mg/kg), and combination administration of IL-17mAb (50 ug/ml) and dexamethasone (2 mg/kg) were intraperitoneally injected into mice at a dose of 0...
February 13, 2017: Inflammation
https://www.readbyqxmd.com/read/28194370/peptide-agonists-of-vasopressin-v2-receptor-reduce-expression-of-neuroendocrine-markers-and-tumor-growth-in-human-lung-and-prostate-tumor-cells
#20
Marina Pifano, Juan Garona, Carla S Capobianco, Nazareno Gonzalez, Daniel F Alonso, Giselle V Ripoll
Neuroendocrine tumors (NETs) comprise a heterogeneous group of malignancies that express neuropeptides as synaptophysin, chromogranin A (CgA), and specific neuronal enolase (NSE), among others. Vasopressin (AVP) is a neuropeptide with an endocrine, paracrine, and autocrine effect in normal and pathological tissues. AVP receptors are present in human lung, breast, pancreatic, colorectal, and gastrointestinal tumors. While AVP V1 receptors are associated with stimulation of cellular proliferation, AVP V2 receptor (V2r) is related to antiproliferative effects...
2017: Frontiers in Oncology
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