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https://www.readbyqxmd.com/read/29430451/micrornas-as-biomarkers-of-acute-lung-injury
#1
REVIEW
Antonio Ferruelo, Óscar Peñuelas, José A Lorente
Acute respiratory distress syndrome (ARDS) is a common and complex inflammatory lung diseases affecting critically ill patients requiring mechanical ventilation. MicroRNAs (miRNAs), a novel pathway of non-coding RNA molecules that regulate gene expression at the post-transcriptional level, have emerged as a novel class of gene expression, and can play important roles in inflammation or apoptosis, which are common manifestations of ARDS and diffuse alveolar damage (DAD). In the present review, we discuss the role of miRNAs as biomarkers of ARDS and DAD, and their potential use as therapeutic targets for this condition...
January 2018: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29430444/heart-lung-interactions-in-acute-respiratory-distress-syndrome-pathophysiology-detection-and-management-strategies
#2
REVIEW
Fernando Suarez Sipmann, Arnoldo Santos, Gerardo Tusman
Acute respiratory distress syndrome (ARDS) is the most severe form of acute respiratory failure characterized by diffuse alveolar and endothelial damage. The severe pathophysiological changes in lung parenchyma and pulmonary circulation together with the effects of positive pressure ventilation profoundly affect heart lung interactions in ARDS. The term pulmonary vascular dysfunction (PVD) refers to the specific involvement of the vascular compartment in ARDS and is expressed clinically by an increase in pulmonary arterial (PA) pressure and pulmonary vascular resistance both affecting right ventricular (RV) afterload...
January 2018: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29413504/several-high-resolution-computed-tomography-findings-associate-with-survival-and-clinical-features-in-rheumatoid-arthritis-associated-interstitial-lung-disease
#3
Hanna M Nurmi, Hannu-Pekka Kettunen, Sanna-Katja Suoranta, Minna K Purokivi, Miia S Kärkkäinen, Tuomas A Selander, Riitta L Kaarteenaho
OBJECTIVE: To compare the presence and extent of several high-resolution computed tomography (HRCT) observations in different subtypes of rheumatoid arthritis-related interstitial lung disease (RA-ILD) and to examine associations between radiological findings, hospitalization, age, RA duration, pulmonary function tests (PFT) and survival. MATERIALS AND METHODS: HRCTs from 60 RA-ILD patients were independently evaluated and re-categorized into usual interstitial pneumonia (UIP), nonspecific interstitial pneumonia (NSIP), organizing pneumonia (OP), diffuse alveolar damage (DAD) and unclassified subtypes by two radiologists...
January 2018: Respiratory Medicine
https://www.readbyqxmd.com/read/29327719/the-histomorphological-spectrum-of-restrictive-chronic-lung-allograft-dysfunction-and-implications-for-prognosis
#4
Jan H von der Thüsen, Elly Vandermeulen, Robin Vos, Birgit Weynand, Erik K Verbeken, Stijn E Verleden
Chronic lung allograft dysfunction continues to be the main contributor to poor long-term allograft survival after lung transplantation. The restrictive phenotype of chronic lung allograft dysfunction carries a particularly poor prognosis. Little is known about the pathogenetic mechanisms involved in restrictive chronic lung allograft dysfunction. In this study, we performed histomorphological and immunohistochemical analysis of restrictive chronic lung allograft dysfunction lungs. Explant lung tissue from 21 restrictive chronic lung allograft dysfunction patients was collected and histopathologic patterns of rejection, fibrosis and vascular changes were scored after routine histochemical stains and additional immunohistochemistry for endothelial markers and C4d...
January 12, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29324568/effects-of-pressure-support-ventilation-on-ventilator-induced-lung-injury-in-mild-acute-respiratory-distress-syndrome-depend-on-level-of-positive-end-expiratory-pressure
#5
Paulo A F Magalhães, Gisele de A Padilha, Lillian Moraes, Cíntia L Santos, Ligia de A Maia, Cassia L Braga, Maria do Carmo M B Duarte, Lívia B Andrade, Alberto Schanaider, Vera L Capellozzi, Robert Huhle, Marcelo Gama de Abreu, Paolo Pelosi, Patricia R M Rocco, Pedro L Silva
BACKGROUND: Harmful effects of spontaneous breathing have been shown in experimental severe acute respiratory distress syndrome (ARDS). However, in the clinical setting, spontaneous respiration has been indicated only in mild ARDS. To date, no study has compared the effects of spontaneous assisted breathing with those of fully controlled mechanical ventilation at different levels of positive end-expiratory pressure (PEEP) on lung injury in ARDS. OBJECTIVE: To compare the effects of assisted pressure support ventilation (PSV) with pressure-controlled ventilation (PCV) on lung function, histology and biological markers at two different PEEP levels in mild ARDS in rats...
January 10, 2018: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/29323413/extracorporeal-membrane-oxygenation-for-refractory-severe-respiratory-failure-in-acute-interstitial-pneumonia
#6
Gabriela Gonçalves-Venade, Nuno Lacerda-Príncipe, Roberto Roncon-Albuquerque, José Artur Paiva
Acute interstitial pneumonia (AIP) is a rare idiopathic interstitial lung disease with rapid progressive respiratory failure and high mortality. In the present report, three cases of AIP complicated by refractory respiratory failure supported with extracorporeal membrane oxygenation (ECMO) are presented. One male and two female patients (ages 27-59) were included. Venovenous ECMO support was provided using miniaturized systems, with two-site femoro-jugular circuit configuration. Despite lung protective ventilation, prone position and neuromuscular blockade, refractory respiratory failure of unknown etiology supervened (ratio of arterial oxygen partial pressure to fractional inspired oxygen 46-130) and ECMO was initiated after 3-7 days of mechanical ventilation...
January 11, 2018: Artificial Organs
https://www.readbyqxmd.com/read/29274319/histopathologic-findings-in-lungs-of-patients-treated-with-extracorporeal-membrane-oxygenation
#7
Hee Eun Lee, Eunhee S Yi, Jeffrey T Rabatin, J Kyle Bohman, Anja C Roden
BACKGROUND: The outcome of extracorporeal membrane oxygenation (ECMO) might be influenced by its complications. Only limited information is available regarding the pathologic consequences of ECMO especially in the era of modern ECMO technology. METHODS: We studied the histopathologic findings in autopsy lungs of patients treated with ECMO as compared to those without ECMO. Autopsy files were queried for cases with ECMO. An age and gender-matched control group, comprised of patients who died in the Intensive Care Unit without acute respiratory distress syndrome, pneumonia, or ECMO, was compared with patients with ECMO for cardiac reason...
December 20, 2017: Chest
https://www.readbyqxmd.com/read/29212801/roles-of-high-mobility-group-box-1-and-thrombin-in-murine-pulmonary-fibrosis-and-the-therapeutic-potential-of-thrombomodulin
#8
Takashi Kida, Takahiro Seno, Hidetake Nagahara, Takuya Inoue, Amane Nakabayashi, Yuji Kukida, Kazuki Fujioka, Wataru Fujii, Makoto Wada, Masataka Kohno, Yutaka Kawahito
Cross-talk between inflammation and coagulation plays important roles in acute or subacute progressive pulmonary fibrosis characterized by diffuse alveolar damage. Thrombomodulin is a physiological inhibitor of high-mobility group box 1 (HMGB1) and thrombin, and may be effective for this condition. This study investigated the roles of HMGB1 and thrombin in the pathophysiology of bleomycin-induced pulmonary fibrosis and the efficacy of recombinant human soluble thrombomodulin (rhTM). Pulmonary fibrosis was induced in wild-type C57BL/6 mice by intratracheal instillation of bleomycin...
December 6, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29201226/bronchial-damage-and-diffuse-alveolar-hemorrhage-following-chlorine-gas-inhalation-a-case-report
#9
Kosuke Uemura, Momoko Isono, Katsunori Kagohashi, Ryuichi Hasegawa, Hiroaki Satoh
Chlorine is a toxic inhalant and sources of exposure for individuals include accidental releases of chlorine vapor due to industrial or chemical transportation accidents. Inhalation of a large quantity of gas may cause circulatory and respiratory disorders or even mortality; however, the effects of a small amount of chlorine gas may be asymptomatic. The present case study presents a successfully treated 55-year-old male patient exposed to chlorine gas, resulting in bronchial damage and diffuse alveolar hemorrhage...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29162154/pigeon-paramyxovirus-type-1-from-a-fatal-human-case-induces-pneumonia-in-experimentally-infected-cynomolgus-macaques-macaca-fascicularis
#10
Thijs Kuiken, Pascal Buijs, Peter van Run, Geert van Amerongen, Marion Koopmans, Bernadette van den Hoogen
Although avian paramyxovirus type 1 is known to cause mild transient conjunctivitis in human beings, there are two recent reports of fatal respiratory disease in immunocompromised human patients infected with the pigeon lineage of the virus (PPMV-1). In order to evaluate the potential of PPMV-1 to cause respiratory tract disease, we inoculated a PPMV-1 isolate (hPPMV-1/Netherlands/579/2003) from an immunocompromised human patient into three healthy cynomolgus macaques (Macaca fascicularis) and examined them by clinical, virological, and pathological assays...
November 21, 2017: Veterinary Research
https://www.readbyqxmd.com/read/29109947/acute-exacerbation-in-interstitial-lung-disease
#11
REVIEW
Gabriela Leuschner, Jürgen Behr
Acute exacerbation of idiopathic pulmonary fibrosis (AE-IPF) has been defined as an acute, clinically significant deterioration that develops within less than 1 month without obvious clinical cause like fluid overload, left heart failure, or pulmonary embolism. Pathophysiologically, damage of the alveoli is the predominant feature of AE-IPF which manifests histopathologically as diffuse alveolar damage and radiologically as diffuse, bilateral ground-glass opacification on high-resolution computed tomography...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/29052522/predictors-of-diffuse-alveolar-damage-in-patients-with-acute-respiratory-distress-syndrome-a-retrospective-analysis-of-clinical-autopsies
#12
Arnaud W Thille, Oscar Peñuelas, José A Lorente, Pilar Fernández-Segoviano, José-Maria Rodriguez, José-Antonio Aramburu, Julian Panizo, Andres Esteban, Fernando Frutos-Vivar
BACKGROUND: Although diffuse alveolar damage (DAD) is considered the typical histological pattern of acute respiratory distress syndrome (ARDS), only half of patients exhibit this morphological hallmark. Patients with DAD may have higher mortality than those without DAD. Therefore, we aimed to identify the factors associated with DAD in patients with ARDS. METHODS: We analyzed autopsy samples of 356 patients who had ARDS at the time of death. DAD was assessed by two pathologists, and ARDS criteria were evaluated by two intensivists...
October 20, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/29045979/-changes-of-serum-krebs-von-den-lungen-6-levels-in-interstitial-lung-disease-associated-with-dermatomyositis-and-secondary-sj%C3%A3-gren-s-syndrome-a-case-report
#13
J F Yu, Y B Jin, J He, Y An, Z G Li
Interstitial lung diseases (ILDs) are a diverse group of pulmonary disorders characterized by various patterns of inflammation and fibrosis in the interstitium of the lung. The underlying pathogenesis of ILDs is complex and associated with multiple rheumatologic conditions, such as systemic sclerosis, rheumatoid arthritis, pollymyositis and dermatomyositis, Sjögren's syndrome, and systemic lupus erythematosus. As the disease progresses, excessive pulmonary fibrosis impairs alveolar gas exchange and damages pulmonary function...
October 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29032433/diffuse-mesangial-sclerosis-in-a-pdss2-mutation-induced-coenzyme-q10-deficiency
#14
Béla Iványi, Gábor Z Rácz, Péter Gál, Kitti Brinyiczki, István Bódi, Tibor Kalmár, Zoltán Maróti, Csaba Bereczki
BACKGROUND: A 7-month-old male infant was admitted because he was suffering from nephrotic syndrome, along with encephalomyopathy, hypertrophic cardiomyopathy, clinically suspected deafness and retinitis pigmentosa, and an elevated serum lactate level. METHODS: Coenzyme Q10 supplementation was started because of the clinical suspicion of primary CoQ10 deficiency. Despite intensive efforts, he passed away 4 weeks after admission. RESULTS: The results of genetic tests, available postmortem, explored two hitherto undescribed mutations in the PDSS2 gene...
October 14, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/29031922/catechin-loaded-plga-submicron-sized-fibers-reduce-levels-of-reactive-oxygen-species-induced-by-mwcnt-in-vitro
#15
Roxana E Ghitescu, Ana Maria Popa, Angela Schipanski, Cordula Hirsch, Gökce Yazgan, Valentin I Popa, René M Rossi, Katharina Maniura-Weber, Giuseppino Fortunato
Reactive oxygen species (ROS) are common products of normal aerobic cellular metabolism, but high levels of ROS lead to oxidative stress and cellular damage. Therefore, effective antioxidant therapies are needed to prevent ROS overproduction. This study reports the development of poly(l-lactide-co-glycolide) (PLGA) bicomponent fibers loaded with selected amounts of the natural polyphenolic antioxidant catechin. Thereby a novel route based on emulsion electrospinning is investigated to obtain tailored and sustained release rates for chatechin...
October 11, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28977098/what-every-intensivist-should-know-about-acute-respiratory-distress-syndrome-and-diffuse-alveolar-damage
#16
Fernando Rios, Teresa Iscar, Pablo Cardinal-Fernández
Acute respiratory distress syndrome is a challenging entity for the intensivist. The pathological hallmark of the acute phase is diffuse alveolar damage, which is present in approximately half of living patients with acute respiratory distress syndrome. It is clear that respiratory support for acute respiratory distress syndrome has gradually been improving over recent decades. However, it is also evident that these procedures are beneficial, as they reduce lung injury and keep the patient alive. This could be interpreted as a time-gaining strategy until the trigger or causal or risk factor improves, the inflammatory storm decreases and the lung heals...
September 28, 2017: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/28942884/overexpression-of-il-38-protein-in-anticancer-drug-induced-lung-injury-and-acute-exacerbation-of-idiopathic-pulmonary-fibrosis
#17
Masaki Tominaga, Masaki Okamoto, Tomotaka Kawayama, Masanobu Matsuoka, Shinjiro Kaieda, Yuki Sakazaki, Takashi Kinoshita, Daisuke Mori, Akira Inoue, Tomoaki Hoshino
BACKGROUND: Interleukin (IL)-38, a member of the IL-1 family, shows high homology to IL-1 receptor antagonist (IL-1Ra) and IL-36 receptor antagonist (IL-36Ra). Its function in interstitial lung disease (ILD) is still unknown. METHODS: To determine the expression pattern of IL-38 mRNA, a panel of cDNAs derived from various tissues was analyzed by quantitative real-time PCR. Immunohistochemical reactivity with anti-human IL-38 monoclonal antibody (clone H127C) was evaluated semi-quantitatively in lung tissue samples from 12 patients with idiopathic pulmonary fibrosis/usual interstitial pneumonia (IPF/UIP), 5 with acute exacerbation of IPF, and 10 with anticancer drug-induced ILD (bleomycin in 5 and epidermal growth factor receptor-tyrosine kinase inhibitor in 5)...
September 2017: Respiratory Investigation
https://www.readbyqxmd.com/read/28862210/pulmonary-toxicity-following-bleomycin-use-a-single-center-experience
#18
Irappa Madabhavi, Gaurang Modi, Apurva Patel, Asha Anand, Harsha Panchal, Sonia Parikh
BACKGROUND: Bleomycin-induced pulmonary (BIP) toxicity is a notorious entity and cropped up in roughly 10% of cases. The aim of the study is to evaluate BIP at our tertiary care cancer center. PATIENTS AND METHODS: This is a retrospective, analytical study conducted at a tertiary care center from January 1998 to December 2012. Records of all the patients who were offered bleomycin chemotherapy as an integral part of adriamycin, bleomycin, vinblastine, and dacarbazine or bleomycin, etoposide, and cisplatin regimen in Hodgkin disease (HD) or germ cell tumor (GCT) were studied for the study inclusion criteria...
July 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28858401/histopathology-of-middle-east-respiratory-syndrome-coronovirus-mers-cov-infection-clinicopathological-and-ultrastructural-study
#19
Khaled O Alsaad, Ali H Hajeer, Mohammed Al Balwi, Mohammed Al Moaiqel, Nourah Al Oudah, Abdulaziz Al Ajlan, Sameera AlJohani, Sami Alsolamy, Giamal E Gmati, Hanan Balkhy, Hamdan H Al-Jahdali, Salim A Baharoon, Yaseen M Arabi
AIMS: The pathogenesis, viral localization and histopathological features of Middle East Respiratory Syndrome - Coronavirus (MERS-CoV) in human are not sufficiently described. The aims of this study were to explore and define the spectrum of histological and ultrastructural pathological changes affecting various organs in a patient with MERS-CoV infection and represent a base of MERS-CoV histopathology. METHODS AND RESULTS: We analyzed the postmortem histopathological findings and investigated viral particles localization in the pulmonary and extra-pulmonary tissue by transmission electron microscopic examination in a 33-year-old male patient of T-cell lymphoma, who acquired MERS-CoV infection...
August 31, 2017: Histopathology
https://www.readbyqxmd.com/read/28852519/fatal-diffuse-alveolar-haemorrhage-mimicking-acute-exacerbation-in-idiopathic-pulmonary-fibrosis-treated-with-nintedanib
#20
Keishi Sugino, Yasuhiko Nakamura, Muneyuki Sekiya, Hiroshi Kobayashi, Kazutoshi Shibuya, Sakae Homma
A 75-year-old man was referred to our hospital with a 1-year history of persistent dry cough and progressive dyspnoea on exertion. He was treated with aspirin due to thrombosis of internal carotid artery. He was diagnosed with idiopathic pulmonary fibrosis (IPF)/usual interstitial pneumonia (UIP), and started on inhaled N-acetylcysteine therapy and pirfenidone. Since his clinical condition progressively deteriorated after 6 months, he was switched from pirfenidone to nintedanib. As a result, his general condition worsened rapidly...
November 2017: Respirology Case Reports
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