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https://www.readbyqxmd.com/read/28090287/transcription-factors-transcriptional-coregulators-and-epigenetic-modulation-in-the-control-of-pulmonary-vascular-cell-phenotype-therapeutic-implications-for-pulmonary-hypertension-2015-grover-conference-series
#1
REVIEW
Soni S Pullamsetti, Frédéric Perros, Prakash Chelladurai, Jason Yuan, Kurt Stenmark
Pulmonary hypertension (PH) is a complex and multifactorial disease involving genetic, epigenetic, and environmental factors. Numerous stimuli and pathological conditions facilitate severe vascular remodeling in PH by activation of a complex cascade of signaling pathways involving vascular cell proliferation, differentiation, and inflammation. Multiple signaling cascades modulate the activity of certain sequence-specific DNA-binding transcription factors (TFs) and coregulators that are critical for the transcriptional regulation of gene expression that facilitates PH-associated vascular cell phenotypes, as demonstrated by several studies summarized in this review...
December 2016: Pulmonary Circulation
https://www.readbyqxmd.com/read/28088960/-role-and-mechanism-of-hydrogen-sulfide-in-cigarette-smoke-induced-chronic-obstructive-pulmonary-disease-related-pulmonary-vascular-remodeling-in-rats
#2
M X Li, Y H Chen, C C Liao, F Lin, Y Bai, W J Mi, Y Sun, Y F Qi
Objective: To investigate the role and mechanism of hydrogen sulfide (H2S) in rats with chronic obstructive pulmonary disease (COPD) related pulmonary vascular remodeling. Methods: Twenty four healthy male Sprague-Dawley rats were randomly divided into 4 groups: control group, cigarette smoke (CS) group, CS+ Sodium hydrosulfide (NaHS) group and CS+ DL-propargylglycine (PPG) group. Rats in control group were fed normally and breathed clear air, and for the rest groups, passive cigarette smoke inhalation method were adopted to establish COPD model...
January 10, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28088894/clinical-significance-of-the-sympathetic-nervous-system-in-the-development-and-progression-of-pulmonary-arterial-hypertension
#3
Ru-Xia Liu, Qian Luo, Hui Qiao, Juan Yu, Qian-Long Zhang, Peng Wang, Yong-Gang Cao, Chang-Lin Jiang, Li-Hui Qu
Pulmonary arterial hypertension (PAH) is defined as a complex disease of clinically characterized by elevated pulmonary pressure eventually resulting in right heart failure and premature death. To date, PAH still remains a life-threatening disease. Published evidence suggests that patients with PAH present profound sympathetic nervous system abnormalities and sympathetic activity has been shown to be increased. The mechanism of PAH is still complex and poorly understood. Some data have showed that adrenoceptors are involved in the process of the pathology and have different functions in the progression of PAH followed by heart failure...
January 12, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28086955/evaluation-of-the-xpert%C3%A2-mtb-rif-assay-and-microscopy-for-the-diagnosis-of-mycobacterium-tuberculosis-in-namibia
#4
Rooyen T Mavenyengwa, Emma Shaduka, Innocent Maposa
BACKGROUND: Tuberculosis (TB) kills approximately two million people and infects around nine million worldwide annually. Its proper management, especially in resource-limited settings, has been hindered by the lack of rapid and easy-to-use diagnostic tests. Sputum smear microscopy remains the cheapest, readily available diagnostic method but it only identifies less than half of the patients with a HIV/TB co-infection because the bacilli would have disseminated from the lungs to other areas of the body...
January 11, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28081478/pulmonary-sarcomatoid-carcinoma-with-alk-rearrangement-frequency-clinical-pathologic-characteristics-and-response-to-alk-inhibitor
#5
Xinru Chen, Yu Zhang, Jiabin Lu, Chunwei Xu, Jianzhong Liang, Fang Wang, Wenyong Sun, Sangao Fang, Jingping Yuan, Huijuan Wang, Hui Wang, Xuewen Liu, Likun Chen
PURPOSE: The incidence of anaplastic lymphoma kinase (ALK) rearrangement in pulmonary sarcomatoid carcinoma (PSC) is controversial. In this study, we aimed to reveal the reliable frequency and the clinical-pathologic characteristics of pulmonary sarcomatoid carcinoma (PSC) with ALK rearrangement in Chinese population, and to provide insight into the translatability of anti-ALK treatment in this treatment-refractory disease. METHODS: Immunohistochemistry (IHC) using a Ventana anti-ALK (D5F3) rabbit monoclonal antibody was performed in 141 PSC specimens collected from multiple medical centers...
January 9, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28081332/surgical-management-of-large-cell-neuroendocrinelung-carcinoma-an-analysis-of-25-cases
#6
Funda İncekara, Koray Aydoğdu, Ebru Sayılır, Selim Şakir Erkmen Gülhan, Funda Demirağ, Sadi Kaya, Göktürk Fındık
BACKGROUND/AIM: Large-cell neuroendocrine carcinoma (LCNEC) of the lung is a relatively uncommon and aggressive subset of pulmonary neuroendocrine tumors, which include typical and atypical carcinoid, and small-cell lung cancer. LCNEC of the lung accounts for no more than 1% of all lung cancers. LCNECs show features of high-grade neuroendocrine tumors and patients with LCNEC have a very poor prognosis. MATERIALS AND METHODS: Twenty-five patients (22 males and 3 females; mean years 60...
December 20, 2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28080134/alveolar-epithelial-cell-derived-mediators-potential-direct-regulators-of-large-airway-and-vascular-responses
#7
Elizabeth A Oczypok, Timothy N Perkins, Tim D Oury
Bronchial epithelial cells and pulmonary endothelial cells are thought to be the primary modulators of conducting airways and vessels, respectively. However, histological examination of both mouse and human lung tissue reveals that alveolar epithelial cells (AECs) line the adventitia of large airways and vessels and thus are also in a position to directly regulate these structures. The primary purpose of this perspective is to highlight that AECs coat the adventitial surface of every vessel and airway in the lung parenchyma...
January 12, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28079615/neuromuscular-weakness-in-chronic-obstructive-pulmonary-disease-chest-wall-diaphragm-and-peripheral-muscle-contributions
#8
Adam Alter, Loutfi S Aboussouan, Eduardo Mireles-Cabodevila
PURPOSE OF REVIEW: Chronic obstructive lung disease affects the lung parenchyma and airways leading to well described effects in respiratory function. This review describes the current knowledge and advances regarding neuromuscular function and chest wall mechanics, which are affected in chronic obstructive pulmonary disease (COPD). RECENT FINDINGS: In COPD, progressive lung hyperinflation becomes constrained by a chest wall with decreasing capacity to expand, resulting in respiratory muscle inefficiency...
January 11, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/28079595/acetylated-cyclophilin-a-is-a-major-mediator-in-hypoxia-induced-autophagy-and-pulmonary-vascular-angiogenesis
#9
Min Mao, Xiufeng Yu, Xin Ge, Rui Gu, Qian Li, Shasha Song, Xiaodong Zheng, Tingting Shen, Xuecang Li, Yao Fu, Jiali Li, Daling Zhu
BACKGROUND: Autophagy is a major intracellular degradation and recycling process that maintains cellular homeostasis, which is involved in structural and functional abnormalities of pulmonary vasculature in hypoxic pulmonary arterial hypertension (HPAH). Cyclophilin A (CyPA) is a secreted, oxidative stress-induced factor. Its role in inducing autophagy and augmenting endothelial cell dysfunction has never been explored. METHODS: Lungs from rats exposed to chronic hypoxia were examined for autophagy with electron microscopy, western blotting, and fluorescence microscopy...
January 12, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28079184/development-of-a-novel-model-of-hypertriglyceridemic-acute-pancreatitis-in-mice
#10
Yiyuan Pan, Yong Li, Lin Gao, Zhihui Tong, Bo Ye, Shufeng Liu, Baiqiang Li, Yizhe Chen, Qi Yang, Lei Meng, Yuhui Wang, George Liu, Guotao Lu, Weiqin Li, Jieshou Li
The morbidity rate of hypertriglyceridemic acute pancreatitis (HTG-AP) increased rapidly over the last decade. However an appropriate animal model was lacking to recapitulate this complicated human disease. We established a novel mice model of HTG-AP by poloxamer 407 (P-407) combined with caerulein (Cae). In our study, serum triglyceride levels of P-407 induced mice were elevated in a dose-dependent manner, and the pancreatic and pulmonary injuries were much severer in HTG mice than normal mice when injected with conventional dose Cae (50 ug/kg), what's more, the severity of AP was positively correlative with duration and extent of HTG...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28078376/ipsilateral-dual-site-same-sitting-percutaneous-lung-biopsy-a-feasibility-study
#11
Joseph Barnett, Aniket N Tavare, Sajid Khan, Ashish Saini, Dean D Creer, Samanjit S Hare
PURPOSE: Patients with thoracic malignancies often have more than one site of pulmonary, nodal or pleural disease within one hemithorax. In addition, large heterogeneous lesions may comprise distinct, mixed pathological entities. Histological analysis of these lesions can alter tumour staging and treatment options. We investigated the feasibility, safety and benefit of performing image-guided percutaneous lung biopsy (PLB) of two lesions in the same hemithorax at a single sitting. MATERIALS AND METHODS: Ten consecutive outpatients with two or more potential disease foci within the same hemithorax were analysed over a 15-month period...
January 11, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28077598/notch-ligand-delta-like-4-promotes-regulatory-t-cell-identity-in-pulmonary-viral-infection
#12
Hung-An Ting, Matthew A Schaller, Denise E de Almeida Nagata, Andrew J Rasky, Ivan P Maillard, Nicholas W Lukacs
Regulatory T (Treg) cells establish tolerance, prevent inflammation at mucosal surfaces, and regulate immunopathology during infectious responses. Recent studies have shown that Delta-like ligand 4 (Dll4) was upregulated on APC after respiratory syncytial virus (RSV) infection, and its inhibition leads to exaggerated immunopathology. In the present study, we outline the role of Dll4 in Treg cell differentiation, stability, and function in RSV infection. We found that Dll4 was expressed on CD11b(+) pulmonary dendritic cells in the lung and draining lymph nodes in wild-type BALB/c mice after RSV infection...
January 11, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28077340/clinicopathological-characteristics-of-papillary-thyroid-cancer-in-children-with-emphasis-on-the-pubertal-status-and-association-with-brafv600e-mutation
#13
Şükran Poyrazoğlu, Rüveyde Bundak, Firdevs Baş, Gülçin Yeğen, Yasemin Şanlı, Feyza Darendeliler
OBJECTIVE: Papillary thyroid cancer (PTC) could behave differently in prepubertal than in pubertal children and between children and adults. BRAF gene activating mutations may associate with PTC by creating aberrant activation. We aimed to evaluate clinicopathological characteristics of PTC patients with emphasis on the pubertal status and investigate the association of BRAFV600E mutation with disease characteristics. METHODS: Medical records of 75 patients with PTC were reviewed retrospectively...
January 12, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/28077110/the-first-rib-hypoplasia-and-the-aberrant-pulmonary-artery-branch-detected-by-three-dimensional-computed-tomography-in-a-surgical-case-with-apical-lung-cancer-a-case-report
#14
Yasoo Sugiura, Hiroyuki Fujimoto, Masao Naruke, Toshinori Hashizume, Shizuka Kaseda, Etsuo Nemoto
BACKGROUND: The complete resection is one of the most crucial requirements to achieve favorable outcomes in oncologic surgery. The apex of the lung is surrounded complicatedly by the clavicle, the first rib, the subclavian artery and vein, and the brachial plexus. Therefore, the image information especially about the infiltration of adjacent anatomic structures, facilitates the surgery in the apical lung cancer. CASE PRESENTATION: A 70-year-old man presented at our hospital with a computed tomography (CT) scan showing a tumor at the left lung apex that infiltrated the chest wall...
January 11, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28076684/radiographic-differentiation-of-advanced-fibrocystic-lung-diseases
#15
Masanori Akira
The concept of end-stage lung disease suggests a final common pathway for most diffuse parenchymal lung diseases. In accordance with this concept, end-stage disease is characterized radiographically and pathologically by the presence of extensive honeycombing. However, sequential computed tomographic (CT) scans obtained from patients with chronic diffuse lung disease evolve over time to show various advanced lung disease patterns other than honeycombing. Also, several radiographically distinct honeycomb patterns, including microcystic, macrocystic, mixed, and combined emphysema and honeycombing differentiate one advanced lung disease from another...
January 11, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28076408/development-of-a-novel-enzyme-linked-immunosorbent-assay-targeting-a-neo-epitope-generated-by-cathepsin-mediated-turnover-of-type-iii-collagen-and-its-application-in-chronic-obstructive-pulmonary-disease
#16
Daniel Guldager Kring Rasmussen, Jannie Marie Bülow Sand, Morten Asser Karsdal, Federica Genovese
A high level of extracellular matrix (ECM) turnover characterizes several lung diseases with fibrotic features. Type III collagen is one of the most abundant collagens in lung parenchyma, and cathepsins play a role in lung pathology, being responsible for tissue remodeling. In this study, we explore the diagnostic features of neo-epitope fragments of type III collagen generated by cathepsins that could reflect the pathological tissue turnover in patients with different diseases. A novel enzyme-linked immunosorbent assay (ELISA) measuring cathepsins B, L, S and K -generated type III collagen fragments (C3C) was developed for assessment in serum and plasma...
2017: PloS One
https://www.readbyqxmd.com/read/28074993/-fatal-interstitial-lung-disease-associated-with-maximum-androgen-blockade
#17
Guillermo Molina Mancero, Xavier Picón, Fernando Di Tullio, Glenda Ernst, Pablo Dezanzo, Alejandro Salvado, Julio F Chertcoff
Maximum androgen blockade is the standard endocrine treatment for advanced prostate cancer. Interstitial lung disease in different degrees of severity, with low mortality and excellent response to treatment may appear with its use. We report a 77 years old patient with advanced prostate cancer who developed severe and progressive respiratory failure associated to bilateral pulmonary infiltrates, attributed to the direct effect of maximum androgen blockade. Despite the therapeutic efforts, the patient died. Lung pathology revealed Usual Interstitial Pneumonia...
October 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/28072969/-pathologic-consensus-of-pulmonary-neuroendocrine-tumors
#18
(no author information available yet)
No abstract text is available yet for this article.
January 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28068894/strain-differences-in-a-murine-model-of-air-pollutant-induced-nonatopic-asthma-and-rhinitis
#19
Jack R Harkema, Lucas A Hotchkiss, Nicholas A Vetter, Daven N Jackson-Humbles, Ryan P Lewandowski, James G Wagner
Ozone is an irritating gas found in photochemical smog. Epidemiological associations have been made between the onset of asthma and childhood exposures to increasing levels of ambient ozone (i.e., air pollutant-induced nonatopic asthma). Individuals, however, vary in their susceptibility to this outdoor air pollutant, which may be due, in part, to their genetic makeup. The present study was designed to test the hypothesis that there are murine strain-dependent differences in pulmonary and nasal pathologic responses to repeated ozone exposures...
January 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/28068629/stars-knockout-attenuates-hypoxia-induced-pulmonary-arterial-hypertension-by-suppressing-pulmonary-arterial-smooth-muscle-cell-proliferation
#20
Zhaoling Shi, Huajie Wu, Jianfeng Luo, Xin Sun
STARS (STriated muscle Activator of Rho Signaling) is a sarcomeric protein, which expressed early in cardiac development and involved in pathological remodeling. Abundant evidence indicated that STARS could regulate cell proliferation, but it's exact function remains unclear. In this study, we aimed to investigate the role of STARS in the proliferation of pulmonary arterial smooth muscle cells (PASMC) and the potential effect on the progression of pulmonary arterial hypertension (PAH). In this study, we established a PAH mouse model through chronic hypoxia exposure as reflected by the increased RVSP and RVHI...
January 6, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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