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https://www.readbyqxmd.com/read/29683998/diagnosis-pathophysiology-and-experimental-models-of-chronic-lung-allograft-rejection
#1
Jason M Gauthier, Daniel Ruiz-Pérez, Wenjun Li, Ramsey R Hachem, Varun Puri, Andrew E Gelman, Daniel Kreisel
Chronic rejection is the Achilles' heel of modern lung transplantation, characterized by a slow, progressive decline in allograft function. Clinically, this manifests as obstructive disease, restrictive disease, or a mixture of the 2 depending on the underlying pathology. The 2 major phenotypes of chronic rejection include bronchiolitis obliterans syndrome and restrictive allograft syndrome. The last decade of research has revealed that each of these phenotypes has a unique underlying pathophysiology which may require a distinct treatment regimen for optimal control...
April 21, 2018: Transplantation
https://www.readbyqxmd.com/read/29678672/genetic-restriction-of-antigen-presentation-dictates-allergic-sensitization-and-disease-in-humanized-mice
#2
Alina Neunkirchner, Bernhard Kratzer, Cordula Köhler, Ursula Smole, Lukas F Mager, Klaus G Schmetterer, Doris Trapin, Victoria Leb-Reichl, Edward Rosloniec, Ronald Naumann, Lukas Kenner, Beatrice Jahn-Schmid, Barbara Bohle, Rudolf Valenta, Winfried F Pickl
BACKGROUND: Immunoglobulin(Ig)E-associated allergies result from misguided immune responses against innocuous antigens. CD4+ T lymphocytes are critical for initiating and perpetuating that process, yet the crucial factors determining whether an individual becomes sensitized towards a given allergen remain largely unknown. OBJECTIVE: To determine the key factors for sensitization and allergy towards a given allergen. METHODS: We here created a novel human T cell receptor(TCR) and human leucocyte antigen (HLA)-DR1 (TCR-DR1) transgenic mouse model of asthma, based on the human-relevant major mugwort (Artemisia vulgaris) pollen allergen Art v 1 to examine the critical factors for sensitization and allergy upon natural allergen exposure via the airways in the absence of systemic priming and adjuvants...
April 5, 2018: EBioMedicine
https://www.readbyqxmd.com/read/29676622/low-to-moderate-arsenic-exposure-and-respiratory-health-in-american-indian-communities
#3
Martha Powers, Tiffany R Sanchez, Maria Grau-Perez, Fawn Yeh, Kevin Francesconi, Walter Goessler, Christine M George, Christopher Heaney, Lyle G Best, Jason Umans, Robert H Brown, Ana Navas-Acien
RATIONALE: Exposure to inorganic arsenic, through drinking naturally-contaminated water, is an established cause of lung cancer. Evidence on the impact of arsenic exposure on lung function, however, is less conclusive. The evidence available, mostly from populations exposed to water arsenic levels >100 μg/L, suggests that arsenic exposure is associated with lower lung function. Prospective studies and studies examining low-to-moderate levels of water arsenic exposure (<50 μg/L) the level relevant for U...
April 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29669167/scoliosis-in-fibrous-dysplasia-mccune-albright-syndrome-factors-associated-with-curve-progression-and-effects-of-bisphosphonates
#4
Jason A Berglund, Sri Harsha Tella, Kaitlyn F Tuthill, Lauren Kim, Lori C Guthrie, Scott M Paul, Robert Stanton, Michael T Collins, Alison M Boyce
BACKGROUND: Scoliosis is a complication of fibrous dysplasia/McCune-Albright syndrome (FD/MAS), however risk factors and long-term outcomes are unknown. Bisphosphonates are commonly used; however, it is unknown whether their use decrease the risk of progressive scoliosis. METHODS: Clinical data from the NIH cohort study was reviewed. Cobb angles were measured, and variables associated with scoliosis progression were identified. RESULTS: Of 138 subjects with available radiographs, 84 (61%) had scoliosis, including 55 (65%) classified as mild (Cobb angle >10 to ≤30°), 11 (13%) as moderate (>30 to ≤45°), and 18 (22%) as severe (>45°)...
April 18, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29666741/a-novel-mutation-in-tsc2-gene-a-34-year-old-female-with-pulmonary-lymphangioleiomyomatosis-with-concomitant-hepatic-lesions
#5
Mehdi Nadiri, Mortaza Raeisi, Seyed Ali Mousavi Aghdas
Tuberous sclerosis complex (TSC) is an autosomal dominant disease resulting from mutation(s) in TSC1 or TSC2 genes. TSC is associated with the formation of hamartomas in the brain, heart, eyes, skin, kidneys, and lymphangioleiomyomatosis (LAM) of the lungs. LAM is almost restricted to women in reproductive age. Different mutations in TSC1 and TSC2 genes have been reported in the literature. Here, we present a female patient with TSC-LAM with a novel mutation in TSC2 gene. The patient also had multiple hepatic angiomyolipomas, which is a relatively less-reported manifestation of the disease...
2018: Case Reports in Pulmonology
https://www.readbyqxmd.com/read/29651422/-aspergillus-induced-superoxide-production-by-cystic-fibrosis-phagocytes-is-associated-with-disease-severity
#6
Shan F Brunel, Janet A Willment, Gordon D Brown, Graham Devereux, Adilia Warris
Aspergillus fumigatus infects up to 50% of cystic fibrosis (CF) patients and may play a role in progressive lung disease. As cystic fibrosis transmembrane conductance regulator is expressed in cells of the innate immune system, we hypothesised that impaired antifungal immune responses play a role in CF-related Aspergillus lung disease. Peripheral blood mononuclear cells, polymorphonuclear cells (PMN) and monocytes were isolated from blood samples taken from CF patients and healthy volunteers. Live-cell imaging and colorimetric assays were used to assess antifungal activity in vitro ...
April 2018: ERJ Open Research
https://www.readbyqxmd.com/read/29627840/lung-dysfunction-and-mortality-in-patients-with-chronic-kidney-disease
#7
Hideyuki Mukai, Pei Ming, Bengt Lindholm, Olof Heimbürger, Peter Barany, Peter Stenvinkel, Abdul Rashid Qureshi
BACKGROUND/AIMS: Lung dysfunction associates with increased mortality but the impact of chronic kidney disease (CKD) is less clear. We evaluated lung function and its association with mortality among individuals with normal to severely reduced glomerular filtration rate (GFR). METHODS: 404 individuals representing GFR category G1 (n=31; GFR >90 mL/min/1.73 m2), G2 (n=46), G3 (n=33), G4 (n=49) and G5 (n=245; GFR< 15 mL/min/1.73 m2) underwent spirometry yielding lung function indices forced vital capacity (FVC), forced expiratory volume in the first second (FEV1) and peak expiratory flow (PEF)...
March 29, 2018: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29617746/thoracoabdominal-pressure-gradient-and-gastroesophageal-reflux-insights-from-lung-transplant-candidates
#8
T Masuda, S K Mittal, B Kovacs, M Smith, R Walia, J Huang, R M Bremner
Advanced lung disease is associated with gastroesophageal reflux disease (GERD). The thoracoabdominal pressure gradient (TAPG) facilitates gastroesophageal reflux, but the effects of TAPG on gastroesophageal reflux in patients with pulmonary disease have not been well defined. Patients diagnosed with end-stage lung disease are expected to have the most extreme derangement in respiratory mechanics. The aim of this study is to explore the relationship between TAPG and reflux in lung transplant (LTx) candidates...
March 31, 2018: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/29610585/pulmonary-diffusion-capacity-for-carbon-monoxide-dlco-in-indonesian-patients-with-end-stage-renal-disease
#9
Taruli Loura Batubara, Faisal Yunus, Ratnawati, Yassir, Fariz Nurwidya
Objectives: End-stage renal disease affects all systems in human including the respiratory system. This study aimed to discover the lung diffusion capacity of carbon monoxide (DLCO) in chronic hemodialysis patients and to establish its relation to several demographic and clinical factors as well as spirometry parameters. Material and Methods: This was a cross-sectional study among chronic hemodialysis patients aged .18 years, clinically stable in the last four weeks, without prior history of lung and cardiac disorder...
December 2017: Mædica
https://www.readbyqxmd.com/read/29605211/spirometric-impairments-cardiovascular-outcomes-and-noncardiovascular-death-in-older-persons
#10
Carlos A Vaz Fragoso, Peter H Van Ness, Terrence E Murphy, Gail J McAvay
BACKGROUND: In prior work involving older persons, the reported associations of spirometric impairments with cardiovascular outcomes may have been confounded by age-related changes in lung function. Hence, using more age-appropriate spirometric criteria from the Global Lung Function Initiative (GLI), we have evaluated the associations of spirometric impairments, specifically restrictive-pattern and airflow-obstruction, with cardiovascular death (CV-death) and hospitalization (CV-hospitalization)...
April 2018: Respiratory Medicine
https://www.readbyqxmd.com/read/29590255/use-of-cardiopulmonary-exercise-testing-to-assess-early-ventilatory-changes-related-to-occupational-particulate-matter
#11
T P Chao, E F Sperandio, T L V P Ostolin, V R Almeida, M Romiti, A R T Gagliardi, R L Arantes, V Z Dourado
Spirometry has been used as the main strategy for assessing ventilatory changes related to occupational exposure to particulate matter (OEPM). However, in some cases, as one of its limitations, it may not be sensitive enough to show abnormalities before extensive damage, as seen in restrictive lung diseases. Therefore, we hypothesized that cardiopulmonary exercise testing (CPET) may be better than spirometry to detect early ventilatory impairment caused by OEPM. We selected 135 male workers with at least one year of exposure...
March 26, 2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/29587831/childhood-fish-oil-supplementation-modifies-associations-between-traffic-related-air-pollution-and-allergic-sensitisation
#12
Anna L Hansell, Ioannis Bakolis, Christine T Cowie, Elena G Belousova, Kitty Ng, Christina Weber-Chrysochoou, Warwick J Britton, Stephen R Leeder, Euan R Tovey, Karen L Webb, Brett G Toelle, Guy B Marks
BACKGROUND: Studies of potential adverse effects of traffic related air pollution (TRAP) on allergic disease have had mixed findings. Nutritional studies to examine whether fish oil supplementation may protect against development of allergic disease through their anti-inflammatory actions have also had mixed findings. Extremely few studies to date have considered whether air pollution and dietary factors such as fish oil intake may interact, which was the rationale for this study. METHODS: We conducted a secondary analysis of the Childhood Asthma Prevention Study (CAPS) birth cohort, where children were randomised to fish oil supplementation or placebo from early life to age 5 years...
March 27, 2018: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/29579768/chronic-lung-allograft-dysfunction-evolving-concepts-and-therapies
#13
Ariss DerHovanessian, W Dean Wallace, Joseph P Lynch, John A Belperio, S Sam Weigt
Lung transplantation has become an established therapeutic option for a variety of end-stage lung diseases. Technical advances in graft procurement, implantation, perioperative care, immunosuppression, and posttransplant medical management have led to significant improvements in 1-year survival, but outcomes after the first year have improved minimally over the last two decades. The main limitation to better long-term survival after lung transplantation is chronic lung allograft dysfunction (CLAD). CLAD also impairs quality of life and increases the costs of medical care...
April 2018: Seminars in Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29568816/a-major-population-of-functional-klrg1-ilc2s-in-female-lungs-contributes-to-a-sex-bias-in-ilc2-numbers
#14
Sapana Kadel, Erola Ainsua-Enrich, Ibrahim Hatipoglu, Sean Turner, Simar Singh, Sohaib Khan, Susan Kovats
Humans show significant sex differences in the incidence and severity of respiratory diseases, including asthma and virus infection. Sex hormones contribute to the female sex bias in type 2 inflammation associated with respiratory diseases, consistent with recent reports that female lungs harbor greater numbers of GATA-3-dependent group 2 innate lymphoid cells (ILC2s). In this study, we determined whether sex hormone levels govern sex differences in the numbers, phenotype, and function of ILC2s in the murine lung and bone marrow (BM)...
February 2018: ImmunoHorizons
https://www.readbyqxmd.com/read/29565457/improving-diagnosis-prognosis-and-prediction-by-using-biomarkers-in-crc-patients-review
#15
Taxiarchis Konstantinos Nikolouzakis, Loukia Vassilopoulou, Persefoni Fragkiadaki, Theodoros Mariolis Sapsakos, George Papadakis, Demetrios A Spandidos, Aristides M Tsatsakis, John Tsiaoussis
Colorectal cancer (CRC) is among the most common cancers. In fact, it is placed in the third place among the most diagnosed cancer in men, after lung and prostate cancer, and in the second one for the most diagnosed cancer in women, following breast cancer. Moreover, its high mortality rates classifies it among the leading causes of cancer‑related death worldwide. Thus, in order to help clinicians to optimize their practice, it is crucial to introduce more effective tools that will improve not only early diagnosis, but also prediction of the most likely progression of the disease and response to chemotherapy...
March 21, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29559121/methyl-accepting-chemotaxis-like-rv3499c-mce4a-protein-in-mycobacterium-tuberculosis-h37rv-mediates-cholesterol-dependent-survival
#16
Rajesh Sinha, Pooja Singh, Neeraj K Saini, Ajit Kumar, Rakesh Pathak, Amita Chandolia, Kushal Garima, Gaurav Tyagi, Madhu Chopra, Ashok Kumar Prasad, Hanumantharao G Raj, Mridula Bose
Cholesterol, an essential cellular component in macrophages, is exploited for entry and long-term survival of Mycobacterium inside the host. Cholesterol-deficient macrophages can restrict the cholesterol-dependent entry of Mycobacterium. Rv3499c protein in Mycobacterium has high binding affinity for cholesterol. Rv3499c gene is a part of mce4 operon which is reported to act as cholesterol transport system in mycobacteria. Earlier we reported Rv3499c protein to localise on cell wall and facilitate entry of Mycobacterium inside macrophages...
March 2018: Tuberculosis
https://www.readbyqxmd.com/read/29552529/association-of-adiponectin-with-lung-function-impairment-and-disease-severity-in-chronic-obstructive-pulmonary-disease
#17
Shivani Jaswal, Varinder Saini, Jasbinder Kaur, Seema Gupta, Harjeet Kaur, Kranti Garg
Context: Chronic obstructive pulmonary disease (COPD) is not only restricted to the pulmonary inflammation and airway obstruction but is also associated with comorbidities, which affect the therapeutic intervention and the quality of life and survival. Markers that can predict the systemic inflammation and a decline in the pulmonary function are of scientific interest. Adiponectin (APN) appears to be one such biomarker and can be used as a potential indicator of severity and response to treatment in patients of COPD...
January 2018: International Journal of Applied and Basic Medical Research
https://www.readbyqxmd.com/read/29536762/altered-expression-of-cyclooxygenase-2-12-lipoxygenase-inducible-nitric-oxide-synthase-2-and-surfactant-protein-d-in-lungs-of-patients-with-pulmonary-injury-caused-by-sulfur-mustard
#18
Eisa Tahmasbpour, Mostafa Ghanei, Abolfazl Khor, Yunes Panahi
CONTEXT: Sulfur mustard (SM) is a strong alkylating toxicant that targets different organs, particularly human lung tissue. Change in genes expression is one of the molecular mechanisms of SM toxicity in damaged tissue. OBJECTIVE: The purpose of this investigation is to characterize the expression of cyclooxygenase-2 (COX-2), 12-lipoxygenase (12-LO), inducible nitric oxide synthase 2 (iNOS2), and surfactant protein D (SFTPD) in lungs of patients who exposed to SM...
March 14, 2018: Drug and Chemical Toxicology
https://www.readbyqxmd.com/read/29530740/ductus-arteriosus-and-fetal-echocardiography-implications-for-practice
#19
REVIEW
Silvia G V Alvarez, Angela McBrien
The ductus arteriosus (DA) is a crucial part of the fetal circulation, both in the normal fetus and in critical congenital heart disease (CHD). It allows shunting between the pulmonary and systemic circulations. In physiological prenatal conditions, the DA lets the majority of right ventricular output bypass the fluid-filled, high-resistance lungs. The DA can cause hemodynamic compromise in the fetus and neonate when constricted or absent (in isolation or in patients with CHD) and may lead to pre- or postnatal sequelae within other systems when forming part of a vascular ring...
March 7, 2018: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29527397/wolf-in-sheep-s-clothing-intracranial-actinomycosis-masquerading-as-en-plaque-meningioma
#20
Harsh Deora, Manish Beniwal, Shilpa Rao, K V L N Rao, V Vikas, Sampath Somanna
Background: Actinomycosis israeli is a gram-positive non-acid-fast bacterium and is the most common causative agent of actinomycosis. It usually presents as a brain abscess via a secondary spread from the cervicofacial region or lungs. However, presentation as an en-plaque lesion with bone involvement out of proportion to brain parenchyma is rare and needs to be acknowledged. Case Description: We report a case of intracranial en-plaque lesion in a 47-year-old female with restriction of mouth opening and right third nerve palsy for 1 year...
2018: Surgical Neurology International
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