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Pulmonary serum marker

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https://www.readbyqxmd.com/read/28745320/surfactant-protein-d-inhibits-activation-of-non-small-cell-lung-cancer-associated-mutant-egfr-and-affects-clinical-outcomes-of-patients
#1
Y Umeda, Y Hasegawa, M Otsuka, S Ariki, R Takamiya, A Saito, Y Uehara, H Saijo, K Kuronuma, H Chiba, H Ohnishi, Y Sakuma, H Takahashi, Y Kuroki, M Takahashi
Tyrosine kinase inhibitor (TKI)-sensitive and TKI-resistant mutations of epidermal growth factor receptor (EGFR) are associated with lung adenocarcinoma. EGFR mutants were previously shown to exhibit ligand-independent activation. We have previously demonstrated that pulmonary surfactant protein D (SP-D, SFTPD) suppressed wild-type EGFR signaling by blocking ligand binding to EGFR. We herein demonstrate that SFTPD downregulates ligand-independent signaling in cells harboring EGFR mutations such as TKI-sensitive exon 19 deletion (Ex19del) and L858R mutation as well as TKI-resistant T790M mutation, subsequently suppressing cellular growth and motility...
July 24, 2017: Oncogene
https://www.readbyqxmd.com/read/28737473/association-between-the-high-soluble-fms-like-tyrosine-kinase-1-to-placental-growth-factor-ratio-and-adverse-outcomes-in-asymptomatic-women-with-early-onset-fetal-growth-restriction
#2
Satoshi Shinohara, Yuzo Uchida, Mayuko Kasai, Rei Sunami
OBJECTIVE: To assess whether the high soluble fms-like tyrosine kinase-1 (sFlt-1) to placental growth factor (PlGF) ratio is associated with adverse outcomes (e.g., HELLP syndrome [hemolysis, elevated liver enzymes, and low platelets], severe hypertension uncontrolled by medication, non-reassuring fetal status, placental abruption, pulmonary edema, growth arrest, maternal death, or fetal death) and a shorter duration to delivery in early-onset fetal growth restriction (FGR). METHODS: Thirty-four women with FGR diagnosed at <34...
July 24, 2017: Hypertension in Pregnancy
https://www.readbyqxmd.com/read/28720711/gene-expression-networks-in-the-murine-pulmonary-myocardium-provide-insight-into-the-pathobiology-of-atrial-fibrillation
#3
Jordan K Boutilier, Rhonda L Taylor, Tracy Mann, Elyshia McNamara, Gary J Hoffman, Jacob Kenny, Rodney J Dilley, Peter Henry, Grant Morahan, Nigel G Laing, Kristen J Nowak
The pulmonary myocardium is a muscular coat surrounding the pulmonary and caval veins. Although its definitive physiological function is unknown, it may have a pathological role as the source of ectopic beats initiating atrial fibrillation. How the pulmonary myocardium gains pacemaker function is not clearly defined, although recent evidence indicates that changed transcriptional gene expression networks are at fault. The gene expression profile of this distinct cell type in situ was examined to investigate underlying molecular events that might contribute to atrial fibrillation...
July 18, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28709490/serum-levels-of-soluble-urokinase-plasminogen-activator-receptor-supar-as-a-marker-of-tuberculosis-treatment-efficacy
#4
V Indumati, V Vijay, D Krishnaswamy, V Rajeshwari, A Ramesh, D Shantala, A Shilpa
BACKGROUND: Upon diagnosis, Pulmonary Tuberculosis patients are treated for TB for a period of 6-9 months. At present, there exists very little indication of the efficacy of the particular treatment. A few previous studies have shown that soluble urokinase plasminogen activator receptor (SuPAR) may be used as treatment efficacy marker. SuPAR is a cellular receptor for serine protease urokinase plasminogen activator (uPA). Bacterial endotoxins and cytokines of the innate immune system stimulate the secretion of uPA in monocytes & neutrophils...
July 2017: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/28707162/pulmonary-surfactant-associated-proteins-and-inflammatory-factors-in-obstructive-sleep-apnea
#5
Dongmei Lu, Ayiniger Abulimiti, Ting Wu, Ailigen Abudureyim, Nanfang Li
PURPOSE: Pulmonary surfactant (PS) plays roles in promoting the removal of the liquid, host defense, and immune regulation in the tracheal, bronchial, and alveoli epithelium. PS protein expression level can be regulated by oxygen levels and related free radicals. Obstructive sleep apnea (OSA) is featured with oxygen free radical production for damaging epithelial tissues and thus may affect PS production. The study was to explore the relationship between PS protein and OSA severity. METHODS: We collected serum and bronchoalveolar lavage fluid (BALF) samples from 35 OSA patients and 22 healthy subjects...
July 13, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28694742/clinical-validation-of-a-blood-based-classifier-for-diagnostic-evaluation-of-asymptomatic-individuals-with-pulmonary-nodules
#6
Charles E Birse, Jennifer L Tomic, Harvey I Pass, William N Rom, Robert J Lagier
BACKGROUND: The number of pulmonary nodules detected in the US is expected to increase substantially following recent recommendations for nationwide CT-based lung cancer screening. Given the low specificity of CT screening, non-invasive adjuvant methods are needed to differentiate cancerous lesions from benign nodules to help avoid unnecessary invasive procedures in the asymptomatic population. We have constructed a serum-based multi-biomarker panel and assessed its clinical accuracy in a retrospective analysis of samples collected from participants with suspicious radiographic findings in the Prostate, Lung, Chest and Ovarian (PLCO) cancer screening trial...
2017: Clinical Proteomics
https://www.readbyqxmd.com/read/28680355/procalcitonin-and-crp-as-biomarkers-in-discrimination-of-community-acquired-pneumonia-and-exacerbation-of-copd
#7
Ayfer Çolak, Celalettin Yılmaz, Burak Toprak, Serir Aktoğu
BACKGROUND: Serum procalcitonin (PCT) and C-reactive protein (CRP) are markers of systemic inflammation and bacterial infection. We aimed to compare the usefulness of procalcitonin and CRP in patients with community-acquired pneumonia and exacerbations of chronic obstructive pulmonary disease (COPD). METHODS: A total of 116 consecutive patients were included in the study: 76 with chronic obstructive pulmonary disease in group 1, and 40 with pneumonia in group 2...
April 2017: Journal of Medical Biochemistry
https://www.readbyqxmd.com/read/28671162/study-of-oxidative-stress-biomarkers-in-chronic-obstructive-pulmonary-disease-and-their-correlation-with-disease-severity-in-north-indian-population-cohort
#8
Jyoti Bajpai, Ved Prakash, Surya Kant, Ajay Kumar Verma, Anand Srivastava, Darshan K Bajaj, M K Ahmad, Avinash Agarwal
BACKGROUND: Oxidant-antioxidant imbalance forms a prime component in pathogenesis of chronic obstructive pulmonary disease (COPD). Studies of oxidative stress markers in South Asians were sparse. METHODS: One hundred and eighty COPD patients and eighty healthy nonsmokers were enrolled in the study. Serum malondialdehyde (MDA) and iron levels were estimated for oxidative stress. Three antioxidant markers evaluated-catalase, superoxide dismutase (SOD), and serum copper...
July 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/28651038/elevated-adipsin-levels-are-associated-with-pulmonary-arterial-hypertension-in-systemic-sclerosis
#9
Benjamin D Korman, Roberta Goncalves Marangoni, Monique Hinchcliff, Sanjiv J Shah, Mary Carns, Aileen Hoffmann, Rosalind Ramsey-Goldman, John Varga
INTRODUCTION: Adipose tissues secrete adipokines, peptides with potent effects modulating fibrosis, inflammation, and vascular homeostasis. Dysregulated adipose tissue biology and adipokine balance have been recently implicated in systemic sclerosis (SSc). We sought to determine if altered circulating adipokine levels correlate with SSc disease subsets or clinical manifestations. MATERIALS AND METHODS: Multiplex assays were used to measure circulating adipokine levels in 198 patients with SSc and 33 healthy controls...
June 26, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28633041/study-of-platelet-activation-hypercoagulable-state-and-the-association-with-pulmonary-hypertension-in-children-with-%C3%AE-thalassemia
#10
REVIEW
Mahmoud Alhosiny Fayed, Hesham El-Sayed Abdel-Hady, Mona Mohammed Hafez, Osama Saad Salama, Youssef Abdelhalim Al-Tonbary
BACKGROUND: The increased survival rate of thalassemic patients has led to unmasking of management related complications which were infrequently encountered. OBJECTIVE: Study the increased coagulation and platelet activation in children with β-thalassemia, to analyze the factors that lead to such hypercoagulable state and to study pulmonary hypertension (PH) in conjunction with platelet activation and hypercoagulable state in children with β-thalassemia. METHODS: 36 Egyptian children with β-thalassemia with a mean age of 9...
June 15, 2017: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/28625771/comparison-of-plasma-to-tissue-dna-mutations-in-surgical-patients-with-non-small-cell-lung-cancer
#11
Kezhong Chen, Jingbo Zhang, Tian Guan, Fan Yang, Feng Lou, Wei Chen, Mingyu Zhao, Jay Zhang, Siyi Chen, Jun Wang
OBJECTIVE: Noninvasive liquid biopsies of circulating tumor DNA (ctDNA) can be used to assess non-small cell lung cancer (NSCLC), but previous work focused on patients with advanced-stage cancer. Thus, we evaluated the feasibility and their potential clinical application of circulating tumor DNA approached for surgical patients with NSCLC. METHOD: Consecutive patients with suspected lung cancer who underwent curative-intent lung resection were enrolled prospectively in this study...
May 24, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28610674/elevated-serum-d-dimer-level-is-associated-with-an-increased-risk-of-acute-exacerbation-in-interstitial-lung-disease
#12
Genta Ishikawa, Samuel O Acquah, Mary Salvatore, Maria L Padilla
BACKGROUND: Early recognition of patients with interstitial lung disease (ILD) who have an increased risk of developing acute exacerbation (AE) or preclinical AE may be clinically useful, since AE is associated with poor outcome and preventive measures would be of interest to ILD researchers. This study evaluated the relationship between elevated serum D-dimer level (≥0.4 mcg/mL) and subsequent AE or preclinical AE in patients with ILD. METHODS: This single-center, retrospective study was performed from October 2009 through September 2015 in patients with ILD who were ≥18 years old and had idiopathic pulmonary fibrosis, other idiopathic interstitial pneumonias, chronic hypersensitivity pneumonitis, ILD related to collagen tissue disease, or combined pulmonary fibrosis/emphysema...
July 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28605426/biomarkers-of-cerebral-injury-and-inflammation-in-pediatric-tuberculous-meningitis
#13
Ursula K Rohlwink, Katya Mauff, Katalin A Wilkinson, Nico Enslin, Emmanuel Wegoye, Robert J Wilkinson, Anthony A Figaji
Background: Tuberculous meningitis (TBM) leads to death or disability in half the affected individuals. Tools to assess severity and predict outcome are lacking. Neuro-specific biomarkers could serve as markers of the severity and evolution of brain injury, but have not been widely explored in TBM. We examined biomarkers of neurological injury (neuromarkers) and inflammation in pediatric TBM and their association with outcome. Methods: Blood and cerebrospinal fluid (CSF) of children with TBM and hydrocephalus taken on admission and over 3 weeks were analysed for neuromarkers S100B, neuron-specific enolase (NSE) and glial fibrillary acidic protein (GFAP), and multiple inflammatory markers...
June 9, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28598268/effects-of-pulmonary-exposure-to-chemically-distinct-welding-fumes-on-neuroendocrine-markers-of-toxicity
#14
K Krajnak, K Sriram, C Johnson, J R Roberts, R Mercer, G R Miller, O Wirth, J M Antonini
Exposure to welding fumes may result in disorders of the pulmonary, cardiovascular, and reproductive systems. Welders are also at a greater risk of developing symptoms similar to those seen in individuals with idiopathic Parkinson's disease. In welders, there are studies that suggest that alterations in circulating prolactin concentrations may be indicative of injury to the dopamine (DA) neurons in the substantia nigra. The goal of these studies was to use an established model of welding particulate exposure to mimic the effects of welding fume inhalation on reproductive functions...
2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28572804/serum-cytokine-profiles-differentiating-hemorrhagic-fever-with-renal-syndrome-and-hantavirus-pulmonary-syndrome
#15
Svetlana F Khaiboullina, Silvana Levis, Sergey P Morzunov, Ekaterina V Martynova, Vladimir A Anokhin, Oleg A Gusev, Stephen C St Jeor, Vincent C Lombardi, Albert A Rizvanov
Hantavirus infection is an acute zoonosis that clinically manifests in two primary forms, hemorrhagic fever with renal syndrome (HFRS) and hantavirus pulmonary syndrome (HPS). HFRS is endemic in Europe and Russia, where the mild form of the disease is prevalent in the Tatarstan region. HPS is endemic in Argentina, as well as other countries of North and South American. HFRS and HPS are usually acquired via the upper respiratory tract by inhalation of virus-contaminated aerosol. Although the pathogenesis of HFRS and HPS remains largely unknown, postmortem tissue studies have identified endothelial cells as the primary target of infection...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28567068/serum-enolase-2-high-sensitivity-c-reactive-protein-and-serum-cholesterol-in-smear-positive-drug-na%C3%A3-ve-pulmonary-tuberculosis
#16
Suhail Ahmed Almani, Tariq Zaffar Shaikh, Haji Khan Khoharo, Ikramuddin Ujjan
BACKGROUND: Pulmonary tuberculosis (PTB) is a chronic granulomatous disease caused by Mycobacterium tuberculosis. The present study determined the serum human enolase-2 (ENO-2), high-sensitive C-reactive protein (hs-CRP), and serum cholesterol levels as biological marker of disease activity and treatment response in smear-positive drug-naïve PTB. MATERIALS AND METHODS: This case-control study was done in the Department of Medicine, Liaquat University of Medical and Health Sciences (LUMHS), Jamshoro/Hyderabad, Sindh, from January 2015 to April 2016...
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/28552071/vitamin-d-levels-in-middle-aged-patients-with-obstructive-sleep-apnoea-syndrome
#17
K Archontogeorgis, E Nena, N Papanas, A Zissimopoulos, A Voulgaris, M Xanthoudaki, V Manolopoulos, M Froudarakis, P Steiropoulos
BACKGROUND: Vitamin D (Vit D) insufficiency has been implicated in the pathophysiology of numerous diseases. Obstructive sleep apnoea syndrome (OSAS), a disorder associated with increased cardiovascular and cerebrovascular morbidity, has been associated with lowered Vit D levels, but reports are inconclusive. AIM: To evaluate the association between serum 25-hydroxyvitamin D [25(OH)D], a marker of Vit D status, and anthropometric and sleep characteristics of OSAS patients and to compare those levels between OSAS patients and non-apnoeic controls...
May 28, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28548310/diagnostic-and-prognostic-values-of-club-cell-protein-16-cc16-in-critical-care-patients-with-acute-respiratory-distress-syndrome
#18
Jinle Lin, Wenwu Zhang, Lijun Wang, Fang Tian
BACKGROUND: Acute respiratory distress syndrome (ARDS) is a critical condition characterized by bilateral pulmonary infiltrates and severe hypoxemia. This study aimed to evaluate the diagnostic and prognostic values of Club cell protein 16 (CC16) in critical care patients with ARDS. METHODS: In this retrospective observational study, 83 patients with ARDS and 129 non-ARDS patients on ICU admission were enrolled. The differences in serum CC16 and other laboratory indicators between two groups were analyzed...
May 26, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28545454/combining-serum-mirnas-cea-and-cyfra21-1-with-imaging-and-clinical-features-to-distinguish-benign-and-malignant-pulmonary-nodules-a-pilot-study-xianfeng-li-et-al-combining-biomarker-imaging-and-clinical-features-to-distinguish-pulmonary-nodules
#19
Xianfeng Li, Qinghua Zhang, Xiayun Jin, Lihua Cao
BACKGROUND: Our study was designed to improve the accuracy of determining whether pulmonary nodules are benign or malignant. METHODS: We evaluated the clinical and imaging features and serum markers: neuron specific enolase (NSE), carcino-embryonic antigen (CEA), cytokeratin fragment antigen 21-1 (CYFRA 21-1), miRNA-21-5p, and miR-574-5pof in 39 patients with pathology information. Factors that differed significantly between those with benign versus malignant pulmonary nodules were used to establish a prediction model for identifying malignant nodules...
May 25, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28545283/-clinical-efficacy-and-safety-of-thrombolytic-treatment-with-reteplase-in-patients-with-intermediate-risk-acute-pulmonary-embolism
#20
H G Zhao, S X Wang, Z N Lu, X X Yan, Z C Lyu, F H Peng, Y Wu, X Gao, L Hua, Z C Jing, X Q Xu
Objective: To assess the efficacy and safety of thrombolytic treatment with reteplase in patients with intermediate-risk acute pulmonary embolism. Methods: Ten consecutive patients with intermediate-risk acute pulmonary embolism who received thrombolytic treatment with reteplase at Thrombosis and Vascular Medicine Center, Fuwai Hospital from March to November in 2016 were included.Vital signs, right ventricular diameter, systolic pulmonary artery pressure, and biochemical markers were assessed before and after thrombolytic therapy with reteplase, and bleeding complications were also observed during 3 months follow up...
April 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
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