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https://www.readbyqxmd.com/read/28314540/technological-advances-shed-light-on-left-ventricular-cardiac-disturbances-in-cystic-fibrosis
#1
REVIEW
Zahra N Sayyid, Zachary M Sellers
Cystic fibrosis (CF), the most common autosomal recessive lethal disease in Caucasians, causes chronic pulmonary disease and can lead to cor pulmonale with right ventricular dysfunction. The presence of the cystic fibrosis transmembrane conductance regulator (CFTR) in cardiac myocardia has prompted debate regarding possible defective ion channel-induced cardiomyopathy. Clinical heart disease in CF is considered rare and is restricted to case reports. It has been unclear if this is due to the lack of physiological importance of CFTR in the heart, the relatively short lifespan of those with CF, or a technical inability to detect subclinical disease...
March 14, 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/28306733/hypervirulent-mycobacterium-tuberculosis-strain-triggers-necrotic-lung-pathology-associated-with-enhanced-recruitment-of-neutrophils-in-resistant-c57bl-6-mice
#2
Fabrício M Almeida, Thatiana L B Ventura, Eduardo P Amaral, Simone C M Ribeiro, Sanderson D Calixto, Marcelle R Manhães, Andreza L Rezende, Giliane S Souzal, Igor S de Carvalho, Elisangela C Silva, Juliana Azevedo da Silva, Eulógio C Q Carvalho, Afranio L Kritski, Elena B Lasunskaia
Tuberculosis (TB) is a chronic infectious disease caused by Mycobacterium tuberculosis (Mtb) that in most cases induces irreversible necrosis of lung tissue as a result of excessive inflammatory reactions. The murine model of TB in resistant C57BL/6 mice infected with reference Mtb strains is widely used in TB studies; however, these mice do not show a necrotic pathology, which restricts their use in studies of irreversible tissue damage. Recently, we demonstrated that necrotic lung lesions could be induced in the C57BL/6 mice by highly virulent Mtb strains belonging to the modern Beijing sublineage...
2017: PloS One
https://www.readbyqxmd.com/read/28300603/a-comprehensive-guide-to-the-mage-family-of-ubiquitin-ligases
#3
REVIEW
Anna K Lee, Patrick Ryan Potts
Melanoma antigen (MAGE) genes are conserved in all eukaryotes and encode for proteins sharing a common MAGE homology domain. Although only a single MAGE gene exists in lower eukaryotes, the MAGE family rapidly expanded in eutherians and consists of more than 50 highly conserved genes in humans. A subset of MAGEs initially garnered interest as cancer biomarkers and immunotherapeutic targets due to their antigenic properties and unique expression pattern that is primary restricted to germ cells and aberrantly re-activated in various cancers...
March 11, 2017: Journal of Molecular Biology
https://www.readbyqxmd.com/read/28299524/lung-function-and-impaired-kidney-function-in-relation-to-metabolic-syndrome
#4
Kayoung Lee
PURPOSE: This study aimed to assess the relationships between abnormal lung function and indicators of chronic kidney disease in relation to metabolic syndrome (MetS) by using data from the 2011-2013 Korea National Health and Nutrition Examination Survey. METHODS: Using the data of 8551 Korean adults (3798 men, 4753 women, ≥40 years), lung function categories [obstructive lung disease (OLD), restrictive lung disease (RLD), and non-obstructive/non-restrictive lung disease (reference group)] were defined for each gender...
March 15, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28293621/development-of-the-physical-activity-and-your-nutrition-for-cancer-pync-smartphone-app-for-preventing-breast-cancer-in-women
#5
Steven S Coughlin, Gina M Besenyi, Deborah Bowen, Gianluca De Leo
BACKGROUND: In the U.S., breast cancer accounts for more cancer deaths in women than any site other than lung cancer. Based upon attributable risks, about 30-35% of breast cancers could potentially be prevented by addressing obesity, physical inactivity, increased alcohol consumption, and carcinogenic exposures such as hormone replacement therapy (HRT). We need methods of reducing women's risks of this disease that are attractive and easy to use, widely accessible to diverse women, and able to be easily amended to account for new research...
2017: MHealth
https://www.readbyqxmd.com/read/28285268/cardiac-manifestations-of-parasitic-diseases
#6
REVIEW
Maria Carmo P Nunes, Milton Henriques Guimarães Júnior, Adriana Costa Diamantino, Claudio Leo Gelape, Teresa Cristina Abreu Ferrari
The heart may be affected directly or indirectly by a variety of protozoa and helminths. This involvement may manifest in different ways, but the syndromes resulting from impairment of the myocardium and pericardium are the most frequent. The myocardium may be invaded by parasites that trigger local inflammatory response with subsequent myocarditis or cardiomyopathy, as occurs in Chagas disease, African trypanosomiasis, toxoplasmosis, trichinellosis and infection with free-living amoebae. In amoebiasis and echinococcosis, the pericardium is the structure most frequently involved with consequent pericardial effusion, acute pericarditis, cardiac tamponade or constrictive pericarditis...
March 11, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28284622/a-novel-pulmonary-polyomavirus-in-alpacas-vicugna-pacos
#7
Florante N Dela Cruz, Linlin Li, Eric Delwart, P A Pesavento
Viral metagenomic analysis detected a novel polyomavirus in a 6-month old female alpaca (Vicugna pacos) euthanized after a diagnosis of disseminated lymphosarcoma. The viral genome was fully sequenced, found to be similar to other polyomaviruses in gene architecture and provisionally named Alpaca polyomavirus or AlPyV. Viral nucleic acid was detected by PCR in venous blood, spleen, thymus, and lung. AlPyV phylogenetically clustered in the "Wuki" group of PyVs, which includes WU and KI polyomaviruses, commonly found in human respiratory samples...
March 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28282445/endothelial-cell-tropism-is-a-determinant-of-h5n1-pathogenesis-in-mammalian-species
#8
Smanla Tundup, Matheswaran Kandasamy, Jasmine T Perez, Nacho Mena, John Steel, Tamas Nagy, Randy A Albrecht, Balaji Manicassamy
The cellular and molecular mechanisms underpinning the unusually high virulence of highly pathogenic avian influenza H5N1 viruses in mammalian species remains unknown. Here, we investigated if the cell tropism of H5N1 virus is a determinant of enhanced virulence in mammalian species. We engineered H5N1 viruses with restricted cell tropism through the exploitation of cell type-specific microRNA expression by incorporating microRNA target sites into the viral genome. Restriction of H5N1 replication in endothelial cells via miR-126 ameliorated disease symptoms, prevented systemic viral spread and limited mortality, despite showing similar levels of peak viral replication in the lungs as compared to control virus-infected mice...
March 10, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28279683/long-term-pulmonary-complications-in-perinatally-hiv-infected-youth
#9
William T Shearer, Denise L Jacobson, Wendy Yu, George K Siberry, Murli Purswani, Suzanne Siminski, Laurie Butler, Erin Leister, Gwendolyn Scott, Russell B Van Dyke, Ram Yogev, Mary E Paul, Ana Puga, Andrew A Colin, Meyer Kattan
BACKGROUND: Increased incidence and prevalence of asthma have been documented for perinatally HIV-infected (HIV) youth 10-21 years of age (youth) compared to HIV-exposed uninfected (HEU) youth. OBJECTIVE: To perform objective pulmonary function tests (PFTs) in HIV and HEU youth with and without diagnosed asthma. METHOD: Asthma was determined in 370 participants (218 HIV, 152 HEU) by chart review and self-report at 13 sites. Interpretable PFTs (188 HIV, 132 HEU) were classified as obstructive, restrictive, or normal and reversibility was determined after bronchodilator inhalation...
March 6, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28279344/pregnancy-related-immune-adaptation-promotes-the-emergence-of-highly-virulent-h1n1-influenza-virus-strains-in-allogenically-pregnant-mice
#10
Géraldine Engels, Alexandra Maximiliane Hierweger, Julia Hoffmann, René Thieme, Swantje Thiele, Stephanie Bertram, Carola Dreier, Patricia Resa-Infante, Henning Jacobsen, Kristin Thiele, Malik Alawi, Daniela Indenbirken, Adam Grundhoff, Svenja Siebels, Nicole Fischer, Violeta Stojanovska, Damián Muzzio, Federico Jensen, Khalil Karimi, Hans-Willi Mittrücker, Petra Clara Arck, Gülsah Gabriel
Pregnant women are at high risk for severe influenza disease outcomes, yet insights into the underlying mechanisms are limited. Here, we present models of H1N1 infection in syngenic and allogenic pregnant mice; infection in the latter mirrors the severe course of 2009 pandemic influenza in pregnant women. We found that the anti-viral immune response in the pregnant host was significantly restricted as compared to the non-pregnant host. This included a reduced type I interferon response as well as impaired migration of CD8(+) T cells into the lung...
March 8, 2017: Cell Host & Microbe
https://www.readbyqxmd.com/read/28275536/rheumatoid-arthritis-associated-pulmonary-hypertension-clinical-challenges-reflecting-the-diversity-of-pathophysiology
#11
Evangelia Panagiotidou, Evdokia Sourla, Serafim Xrisovalantis Kotoulas, Sofia Akritidou, Vasileios Bikos, Vasileios Bagalas, Ioannis Stanopoulos, Georgia Pitsiou
The present article reports three clinical cases in order to elucidate the diversity of the pathophysiological mechanisms that underlie rheumatoid arthritis associated pulmonary hypertension. The condition's three major causes are: interstitial lung disease, vasculitis, and chronic thromboembolic disease, but it should be noted that the multiple pulmonary manifestations of rheumatoid arthritis, can all contribute to chronic lung disease or hypoxia. The first patient in this report suffered from moderate restriction due to fibrosis and was diagnosed with pulmonary hypertension during an episode of life threatening hypoxia...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28274531/an-analysis-of-the-clinical-features-of-lung-cancer-in-patients-with-connective-tissue-diseases
#12
Atsuro Saijo, Masaki Hanibuchi, Hisatsugu Goto, Yuko Toyoda, Toshifumi Tezuka, Yasuhiko Nishioka
BACKGROUND: Patients with connective tissue diseases (CTDs) are at increased risk for lung cancer (LC); interstitial lung disease (ILD) is a common form of organ dysfunction in cases of CTD. However, the influence of ILD on the treatment and prognosis in LC patients with CTD is unclear. METHODS: Between January 2010 and December 2014, 27 patients among all patients with CTD at our institution were diagnosed with primary LC. We retrospectively analyzed the clinical features, treatment modalities, and outcomes of these patients, and evaluated the potential prognostic factors...
March 2017: Respiratory Investigation
https://www.readbyqxmd.com/read/28264879/abcg1-regulates-pulmonary-surfactant-metabolism-in-mice-and-men
#13
Thomas Q de Aguiar Vallim, Elinor Lee, David J Merriott, Christopher N Goulbourne, Joan Cheng, Angela Cheng, Ayelet Gonen, Ryan M Allen, Elisa N D Palladino, David A Ford, Tisha Wang, Ángel Baldán, Elizabeth J Tarling
Idiopathic pulmonary alveolar proteinosis (PAP) is a rare lung disease characterized by accumulation of surfactant. Surfactant synthesis and secretion are restricted to epithelial type 2 pneumocytes (T2 cells). Clearance of surfactant is dependent upon T2 cells and macrophages. ATP Binding Cassette Transporter G1 (ABCG1) is highly expressed in both T2 cells and macrophages. ABCG1-deficient mice accumulate surfactant, lamellar body-loaded T2 cells, lipid-loaded macrophages, B-1 lymphocytes and immunoglobulins, clearly demonstrating ABCG1 has a critical role in pulmonary homeostasis...
March 6, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28258938/ventilation-distribution-and-small-airway-function-in-patients-with-systemic-sclerosis
#14
B R A Silva, R Rufino, C H Costa, V S Vilela, R A Levy, A J Lopes
BACKGROUND: Despite the importance of traditional pulmonary function tests (PFTs) in managing systemic sclerosis (SSc), many patients with pulmonary disease diagnosed by computed tomography (CT) present with normal PFTs. OBJECTIVE: To evaluate the efficacy of the nitrogen single-breath washout (N2SBW) test in diagnosing SSc and to correlate N2SBW parameters with the PFT indexes used in the follow-up of these patients, clinical data, and CT findings. METHODS: Cross-sectional study in which 52 consecutive SSc patients were subjected to spirometry, body plethysmography, analysis of the diffusing capacity for carbon monoxide (DLCO), analysis of respiratory muscle strength, N2SBW testing, and CT analysis...
March 1, 2017: Revista Portuguesa de Pneumologia
https://www.readbyqxmd.com/read/28248586/reply-decline-of-lung-function-in-children-with-sickle-cell-disease-is-not-associated-with-restrictive-defects
#15
Robyn T Cohen, Mark Rodeghier, Michael R DeBaun
No abstract text is available yet for this article.
March 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28248574/decline-of-lung-function-in-children-with-sickle-cell-disease-is-not-associated-with-restrictive-defects
#16
Rucheet Patel, Olufolake Adisa, Anne M Fitzpatrick
No abstract text is available yet for this article.
March 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28248134/restrictive-lung-disease-in-the-cu-zn-superoxide-dismutase-1-g93a-amyotrophic-lateral-sclerosis-mouse-model
#17
Lorelei Stoica, Allison M Keeler, Lang Xiong, Michael Kalfopoulos, Kaitlyn Desrochers, Robert H Brown, Miguel Sena-Esteves, Terence R Flotte, Mai K ElMallah
No abstract text is available yet for this article.
March 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28244013/impact-of-airflow-limitation-in-chronic-heart-failure
#18
S Bektas, F M E Franssen, V van Empel, N Uszko-Lencer, J Boyne, C Knackstedt, H P Brunner-La Rocca
BACKGROUND: Comorbidities are common in chronic heart failure (HF) patients, but diagnoses are often not based on objective testing. Chronic obstructive pulmonary disease (COPD) is an important comorbidity and often neglected because of shared symptoms and risk factors. Precise prevalence and consequences are not well known. Therefore, we investigated prevalence, pulmonary treatment, symptoms and quality of life (QOL) of COPD in patients with chronic HF. METHODS: 205 patients with stable HF for at least 1 month, aged above 50 years, were included from our outpatient cardiology clinic, irrespective of left ventricular ejection fraction...
February 27, 2017: Netherlands Heart Journal
https://www.readbyqxmd.com/read/28242146/prevalence-and-implications-of-abnormal-respiratory-patterns-in-cardiac-surgery-a-prospective-cohort-study
#19
Dmitry Ponomarev, Oksana Kamenskaya, Asya Klinkova, Irina Loginova, Vladimir Lomivorotov, Igor Kornilov, Vladimir Shmyrev, Aleksander Chernavskiy, Giovanni Landoni, Aleksander Karaskov
OBJECTIVE: To investigate the prevalence and impact of abnormal respiratory patterns in cardiac surgery patients. DESIGN: Prospective cohort study. SETTING: Tertiary hospital. PARTICIPANTS: Patients scheduled for elective coronary artery bypass graft surgery. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Pulmonary function tests were performed in 454 patients before surgery...
December 7, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28238229/suspecting-non-cystic-fibrosis-bronchiectasis-what-the-busy-primary-care-clinician-needs-to-know
#20
REVIEW
Diego J Maselli, Bravein Amalakuhan, Holly Keyt, Alejandro A Diaz
AIMS: Non-cystic fibrosis bronchiectasis (NCFB) is a chronic, progressive respiratory disorder characterised by irreversibly and abnormally dilated airways, persistent cough, excessive sputum production and recurrent pulmonary infections. In the last several decades, its prevalence has increased, making it likely to be encountered in the primary care setting. The aim was to review the clinical presentation and diagnosis of NCFB, with an emphasis on the role of computed tomography (CT)...
February 2017: International Journal of Clinical Practice
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