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Pulmonary medicine

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https://www.readbyqxmd.com/read/28936954/-role-of-serum-s1p-levels-during-asthma-attack-in-the-evaluation-of-asthma-severity
#1
Yunwei Zhao, Yiqin Xu, Shuang Li, Yu Wei, Chunling Wang
OBJECTIVE: To observe the changes of serum sphingosine-1-phosphate (S1P) level in asthmatic patients with different severity of bronchial asthma, and to explore the evaluation value of S1P on the severity of asthma. METHODS: A prospective observational study was conducted. Fifty-two patients with asthma admitted to Department of Respiratory Medicine of the First Affiliated Hospital of Jiamusi University from November 2015 to January 2017 were enrolled. According to the severity of the disease, the patients were divided into mild, moderate and severe groups...
September 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28936695/early-application-of-airway-pressure-release-ventilation-may-reduce-the-duration-of-mechanical-ventilation-in-acute-respiratory-distress-syndrome
#2
Yongfang Zhou, Xiaodong Jin, Yinxia Lv, Peng Wang, Yunqing Yang, Guopeng Liang, Bo Wang, Yan Kang
PURPOSE: Experimental animal models of acute respiratory distress syndrome (ARDS) have shown that the updated airway pressure release ventilation (APRV) methodologies may significantly improve oxygenation, maximize lung recruitment, and attenuate lung injury, without circulatory depression. This led us to hypothesize that early application of APRV in patients with ARDS would allow pulmonary function to recover faster and would reduce the duration of mechanical ventilation as compared with low tidal volume lung protective ventilation (LTV)...
September 22, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28928190/interdisciplinary-model-of-care-radicals-for-early-detection-and-management-of-chronic-obstructive-pulmonary-disease-copd-in-australian-primary-care-study-protocol-for-a-cluster-randomised-controlled-trial
#3
Jenifer Liang, Michael J Abramson, Nicholas Zwar, Grant Russell, Anne E Holland, Billie Bonevski, Ajay Mahal, Benjamin van Hecke, Kirsten Phillips, Paula Eustace, Eldho Paul, Kate Petrie, Sally Wilson, Johnson George
INTRODUCTION: Up to half of all smokers develop clinically significant chronic obstructive pulmonary disease (COPD). Gaps exist in the implementation and uptake of evidence-based guidelines for managing COPD in primary care. We describe the methodology of a cluster randomised controlled trial (cRCT) evaluating the efficacy and cost-effectiveness of an interdisciplinary model of care aimed at reducing the burden of smoking and COPD in Australian primary care settings. METHODS AND ANALYSIS: A cRCT is being undertaken to evaluate an interdisciplinary model of care (RADICALS - Review of Airway Dysfunction and Interdisciplinary Community-based care of Adult Long-term Smokers)...
September 18, 2017: BMJ Open
https://www.readbyqxmd.com/read/28928005/sensitive-and-selective-quantification-of-total-and-free-itraconazole-and-hydroxyitraconazole-in-human-plasma-using-ultra-performance-liquid-chromatography-coupled-to-tandem-mass-spectrometry
#4
Yosuke Suzuki, Ryota Tanaka, Nobuhiro Oyama, Ko Nonoshita, Kazuhiko Hashinaga, Kenji Umeki, Yuhki Sato, Kazufumi Hiramatsu, Jun-Ichi Kadota, Hiroki Itoh
OBJECTIVES: Protein-free (unbound) drug concentrations have been reported to be better biomarker of pharmacodynamics compared with total drug concentrations. In this study, we developed and validated an assay for the quantification of total and free itraconazole and hydroxyitraconazole, a main metabolite with antifungal activity, in human plasma using ultra-performance liquid chromatography coupled to tandem mass spectrometry (UPLC-MS/MS). DESIGN & METHODS: Plasma sample was ultra-filtrated for the measurement of free itraconazole and hydroxyitraconazole concentrations...
September 16, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28926926/protective-effects-of-aloperin-on-monocroline-induced-pulmonary-hypertension-via-regulation-of-rho-a-rho-kinsase-pathway-in-rats
#5
Fan Wu, Wanxia Yao, Jiamei Yang, Min Zhang, Yanping Xu, Yinju Hao, Lin Yan, Yang Niu, Tao Sun, Jianqiang Yu, Ru Zhou
Pulmonary hypertension (PH) is fatal disease which closely involves Rho A/ Rho kinsase (ROCK) pathway. Aloperine is a main active alkaloid extracted from Sophora alopecuroides, which is a traditional Chinese herbal medicine that has been used widely. However, the effects of this alkaloid on pulmonary hypertension and its mechanisms remain unclear. Therefore, this study is designed to investigate whether aloperine has protective effects on PH induced by monocrotaline, whether these effects may be related to regulation of RhoA/ROCK pathway in rats...
September 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28925377/applied-upper-airway-resistance-instantly-affects-breath-components-a-unique-insight-into-pulmonary-medicine
#6
Pritam Sukul, Jochen Schubert, Svend Kamysek, Phillip Trefz, Wolfram Miekisch
Respiratory parameters such as flow or rate have complex effects onto exhalation of volatile substances and can hamper clinical interpretation of breath biomarkers. We investigated effects of progressively applied upper-airway resistances onto exhalation of volatile organic compounds (VOCs) in healthy humans. We performed real-time mass-spectrometric determination of breath volatiles in 50 subjects with parallel non-invasive hemodynamic monitoring, breath-resolved spirometry and capnometry during controlled tidal breathing (12 breaths/min)...
September 19, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28925274/-a-case-report-of-peritoneal-tuberculosis-the-diagnostic-role-of-pet-ct-and-laparoscopy
#7
H Macháčková, R Pilka, S Losse, M Žurková, V Lošťáková, T Tichý, Y Lovečková
OBJECTIVE: We present a case of peritoneal tuberculosis of young woman with focus on difficult diagnosis of this low incidence disease in developed countries. DESIGN: Case report. SETTING: Department of Gynaecology and Obstetrics, Faculty Hospital, Olomouc. Department of Obstetric and Gynaecology, Nový Jičín Hospital. Department of Pulmonary Diseases and Tuberculosis, Faculty Hospital, Olomouc. Department of Pathology nad Molecular Medicine, Faculty Hospital, Olomouc...
2017: Ceská Gynekologie
https://www.readbyqxmd.com/read/28923146/cannon-ball-diagnosis-and-management-in-a-flight-attendant-candidate
#8
Meryem Zerrik, Houda Echchachoui, Zakaria Iloughmane, Choukri El'mhadi, Salaheddine Elkhader, Laila Benaissa, Mohamed Chemsi
BACKGROUND: ''Cannon ball'' opacities on chest X-rays are a common manifestation of hematogenous dissemination of a malignant tumor in the lungs. They indicate an advanced stage of disease with a very grim prognosis in terms of cure and survival. In aerospace medicine, this aspect means the patient is unfit for flight duties. Nonmetastatic etiologies of pulmonary nodules are rare. We report a case of cannon ball opacities discovered fortuitously during an admission visit. CASE REPORT: A 23-yr-old flight attendant candidate came to the Aeromedical Expertise Center of the Military Hospital in Rabat for medical evaluation...
October 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28922731/shikonin-suppresses-pulmonary-fibroblasts-proliferation-and-activation-by-regulating-akt-and-p38-mapk-signaling-pathways
#9
Yunjuan Nie, Yaoyao Yang, Jian Zhang, Guowei Cai, Yanhua Chang, Gaoshang Chai, Chongyong Guo
Fibroblast is believed to be the primary effector in idiopathic pulmonary fibrosis (IPF), a progressive lung disorder characterized by aberrant tissue remodeling and the formation of fibroblastic foci. Due to the complicated etiology and mechanism, there are few effective drugs for this fatal disease. Shikonin (SHI), which is the major ingredient isolated from the plant Lithospermum Erythrorhizon, has long been used as traditional medicine for many diseases including inflammation and cancer. The roles of SHI in attenuating skin scar and renal fibrosis by reducing TGFβ1-stimulated fibroblast activation are also reported...
September 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28922348/stem-cell-biology-and-regenerative-medicine-for-neonatal-lung-diseases
#10
REVIEW
Martin Kang, Bernard Thébaud
Lung diseases remain one of the main causes of morbidity and mortality in neonates. Cell therapy and regenerative medicine have the potential to revolutionize the management of life-threatening and debilitating lung diseases that currently lack effective treatments. Over the past decade, the repair capabilities of stem/progenitor cells has been harnessed to prevent/rescue lung damage in experimental neonatal lung diseases. Mesenchymal stromal cells and amnion epithelial cells exert pleiotropic effects and represent ideal therapeutic cells for bronchopulmonary dysplasia, a multifactorial disease...
September 18, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28921655/fast-dynamic-ventilation-mri-of-hyperpolarized-129-xe-using-spiral-imaging
#11
Ozkan Doganay, Tahreema N Matin, Anthony Mcintyre, Brian Burns, Rolf F Schulte, Fergus V Gleeson, Daniel Bulte
PURPOSE: To develop and optimize a rapid dynamic hyperpolarized (129) Xe ventilation (DXeV) MRI protocol and investigate the feasibility of capturing pulmonary signal-time curves in human lungs. THEORY AND METHODS: Spiral k-space trajectories were designed with the number of interleaves Nint  = 1, 2, 4, and 8 corresponding to voxel sizes of 8 mm, 5 mm, 4 mm, and 2.5 mm, respectively, for field of view = 15 cm. DXeV images were acquired from a gas-flow phantom to investigate the ability of Nint  = 1, 2, 4, and 8 to capture signal-time curves...
September 16, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28918826/islamic-medicine-in-the-middle-ages
#12
EDITORIAL
Hawa Edriss, Brittany N Rosales, Connie Nugent, Christian Conrad, Kenneth Nugent
The Islamic culture flourished between the 9th and 13th centuries. Scholars from this era made significant contributions in mathematics, science and medicine. Caliphs and physicians built hospitals that provided universal care and the foundation for medical education. Physician-scientists made significant advances in medical care, surgery and pharmacology. Notable authorities include al-Razi (865-925 CE) who wrote the Kitab al-Hawi fi al-tibb (The Comprehensive Book on Medicine), a 23-volume textbook that provided the main medical curriculum for European schools into the 14th century...
September 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28915942/development-of-a-validated-lc-ms-ms-method-for-the-quantification-of-19-endogenous-asthma-copd-potential-urinary-biomarkers
#13
Mona M Khamis, Darryl J Adamko, Anas El-Aneed
Obstructive airways inflammatory diseases sometimes show overlapping symptoms that hinder their early and correct diagnosis. Current clinical tests are tedious and are of inadequate specificity in special population such as the elderly and children. Therefore, we are developing tandem mass spectrometric (MS/MS) methods for targeted analysis of urine biomarkers. Recently, proton-nuclear magnetic resonance ((1)H-NMR) analysis proposed 50 urinary metabolites as potential diagnostic biomarkers among asthma and chronic obstructive pulmonary disease (COPD) patients...
October 9, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28915874/unmet-needs-in-the-treatment-of-idiopathic-pulmonary-fibrosis-insights-from-patient-chart-review-in-five-european-countries
#14
Toby M Maher, Maria Molina-Molina, Anne-Marie Russell, Francesco Bonella, Stéphane Jouneau, Elena Ripamonti, Judit Axmann, Carlo Vancheri
BACKGROUND: Two antifibrotic drugs, pirfenidone and nintedanib, are approved by the European Medicines Agency and the US Food and Drug Administration for the treatment of idiopathic pulmonary fibrosis (IPF). In this analysis, treatment patterns of European patients with IPF were investigated to understand antifibrotic prescribing and identify unmet needs in IPF treatment practice. METHODS: Between February and March 2016, respiratory physicians from France, Germany, Italy, Spain, and the UK participated in an online questionnaire designed to collect information on IPF treatment patterns in patients under their care...
September 15, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28915070/value-of-transmission-electron-microscopy-for-primary-ciliary-dyskinesia-diagnosis-in-the-era-of-molecular-medicine-genetic-defects-with-normal-and-non-diagnostic-ciliary-ultrastructure
#15
Adam J Shapiro, Margaret W Leigh
Primary ciliary dyskinesia (PCD) is a genetic disorder causing chronic oto-sino-pulmonary disease. No single diagnostic test will detect all PCD cases. Transmission electron microscopy (TEM) of respiratory cilia was previously considered the gold standard diagnostic test for PCD, but 30% of all PCD cases have either normal ciliary ultrastructure or subtle changes which are non-diagnostic. These cases are identified through alternate diagnostic tests, including nasal nitric oxide measurement, high-speed videomicroscopy analysis, immunofluorescent staining of axonemal proteins, and/or mutation analysis of various PCD causing genes...
September 15, 2017: Ultrastructural Pathology
https://www.readbyqxmd.com/read/28914424/new-perspectives-in-nanotherapeutics-for-chronic-respiratory-diseases
#16
Adriana Lopes da Silva, Fernanda Ferreira Cruz, Patricia Rieken Macedo Roccco, Marcelo Marcos Morales
According to the World Health Organization (WHO), hundreds of millions of people of all ages and in all countries suffer from chronic respiratory diseases, with particular negative consequences such as poor health-related quality of life, impaired work productivity, and limitations in the activities of daily living. Chronic obstructive pulmonary disease, asthma, occupational lung diseases (such as silicosis), cystic fibrosis, and pulmonary arterial hypertension are the most common of these diseases, and none of them are curable with current therapies...
September 15, 2017: Biophysical Reviews
https://www.readbyqxmd.com/read/28910912/-percutaneous-catheterization-for-extracorporeal-membrane-oxygenation-a-retrospective-case-series
#17
X Y Li, H Y He, X Tang, R Wang, C Y Zhang, S Q Wang, B Sun, Z H Tong
Objective: To review the experience of percutaneous catheterization for extracorporeal membrane oxygenation (ECMO) by respiratory intensivists at a single institution. Methods: A retrospective review of 87 patients undergoing percutaneous catheterization for ECMO in Department of Respiratory and Critical Care Medicine of Beijing Chaoyang Hospital from November 2009 to January 2017. Subject demographics, type of support, cannulation configuration, types of cannulas, use of imaging modalities, and complications were recorded and summarized...
September 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28900533/seabuckthorn-paste-protects-lipopolysaccharide-induced-acute-lung-injury-in-mice-through-attenuation-of-oxidative-stress
#18
Leilei Du, Xiaoxin Hu, Chu Chen, Tingting Kuang, Hengfu Yin, Li Wan
Oxidative stress is one of the major mechanisms implicated in endotoxin-induced acute lung injury. Seabuckthorn paste (SP), a traditional Tibetan medicine with high content of polyphenols and remarkable antioxidant activity, is commonly used in treating pulmonary diseases. In the present study, the protective effects and possible underlying mechanisms of SP on lipopolysaccharide- (LPS-) induced acute lung injury in mice were investigated. It was found that body weight loss, lung tissue microstructure lesions, transvascular leakage increase, malondialdehyde augmentation, and the reduction of superoxide dismutase and glutathione peroxidase levels caused by LPS challenge were all consistently relieved by SP treatment in a dose-dependent manner...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28893450/emergency-medicine-evaluation-and-management-of-the-end-stage-renal-disease-patient
#19
REVIEW
Brit Long, Alex Koyfman, Courtney M Lee
BACKGROUND: End stage renal disease (ESRD) is increasing in the U.S., and these patients demonstrate greater all-cause mortality, cardiovascular events, and hospitalization rates when compared to those with normal renal function. These patients may experience significant complications associated with loss of renal function and dialysis. OBJECTIVE: This review evaluates complications of ESRD including cardiopulmonary, neurologic, infectious disease, vascular, and access site complications, as well as medication use in this population...
September 5, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28893092/salvianolic-acid-a-a-component-of-salvia-miltiorrhiza-attenuates-endothelial-mesenchymal-transition-of-hpaecs-induced-by-hypoxia
#20
Tianyi Yuan, Yucai Chen, Huifang Zhang, Lianhua Fang, Guanhua Du
Salvianolic acid A (SAA), a polyphenols acid, is a bioactive ingredient from a traditional Chinese medicine called Dan shen (Salvia Miltiorrhiza Bunge). According to previous studies, it was shown to have various effects such as anti-oxidative stress, antidiabetic complications and antipulmonary hypertension. This study aimed to investigate the effect of SAA on pulmonary arterial endothelial-mesenchymal transition (EndoMT) induced by hypoxia and the underlying mechanisms. Primary cultured human pulmonary arterial endothelial cells (HPAECs) were exposed to 1% O2 for 48[Formula: see text]h with or without SAA treatment...
2017: American Journal of Chinese Medicine
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