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https://www.readbyqxmd.com/read/27905295/desensitization-of-idiopathic-pulmonary-fibrosis-fibroblasts-to-alternaria-alternata-extract-mediated-necrotic-cell-death
#1
Jintaek Im, Kyutae Kim, Ji Young Yhee, Scott M O'Grady, Richard S Nho
Alternaria alternata is an allergenic fungus and known to cause an upper respiratory tract infection and asthma in humans with compromised immunity. Although A. alternata's effect on airway epithelial cells has previously been examined, the potential role of A. alternata on lung fibroblast viability is not understood. Since lung fibroblasts derived from patients with idiopathic pulmonary fibrosis (IPF) display a distinct phenotype that is resistant to stress and cell death inducing conditions, the investigation of the role of Alternaria on pathological IPF fibroblasts provides a better understanding of the fibrotic process induced by an allergenic fungus...
November 2016: Physiological Reports
https://www.readbyqxmd.com/read/27905231/monitoring-during-anaesthesia-and-recovery
#2
Andreia Trigo
Essential facts Respiratory compromise is a critical perioperative complication associated with increased costs and poor outcomes. It is common, costly, deadly and, most importantly, preventable.
December 1, 2016: Nursing Management (Harrow)
https://www.readbyqxmd.com/read/27903293/personalized-medicine-approach-confirms-a-milder-case-of-abat-deficiency
#3
A Besse, A K Petersen, J V Hunter, V Appadurai, S R Lalani, P E Bonnen
ABAT deficiency (OMIM 613163) is a rare inborn error of metabolism caused by recessive variants in the gene 4-aminobutyric acid transaminase (ABAT), which is responsible for both the catalysis of GABA and maintenance of nucleoside pools in the mitochondria. To date, only a few patients have been reported worldwide. Their clinical presentation has been remarkably consistent with primary features of severe psychomotor retardation, encephalopathy, hypotonia, and infantile-onset refractory epilepsy. We report a new case of ABAT deficiency that marks an important departure from previous clinical findings...
December 1, 2016: Molecular Brain
https://www.readbyqxmd.com/read/27902340/viral-bacterial-interactions-in-the-respiratory-tract
#4
Carla Bellinghausen, Gernot Gu Rohde, Paul Hm Savelkoul, Emiel Fm Wouters, Frank Rm Stassen
In the respiratory tract, viruses and bacteria can interact on multiple levels. It is well known that respiratory viruses, particularly influenza viruses, increase the susceptibility to secondary bacterial infections. Numerous mechanisms, including compromised physical and immunological barriers, and changes in the microenvironment have hereby been shown to contribute to the development of secondary bacterial infections. In contrast, our understanding of how bacteria shape a response to subsequent viral infection is still limited...
October 18, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27898744/pre-exercise-hyperpnea-attenuates-exercise-induced-bronchoconstriction-without-affecting-performance
#5
Philipp A Eichenberger, Thomas A Scherer, Christina M Spengler
Whole-body warm-up exercises were shown to attenuate exercise-induced bronchoconstriction (EIB). Whether intense pre-exercise hyperpnea offers similar protection and whether this might negatively affect exercise performance is unknown. Nine subjects with EIB (25±5 yrs; forced expiratory volume in 1s [FEV1], 104±15% predicted) performed an exercise challenge (ECh) followed-after 30min-by a constant-load cycling test to exhaustion. The ECh was preceded by one of four conditions: by i) control warm-up (CON) or by 10min of normocapnic hyperpnea with partial rebreathing at either ii) 50% (WU50) or iii) variable intensity (8x 30s-80%/45s-30%; WU80/30), or at iv) 70% (WU70) of maximal voluntary ventilation...
2016: PloS One
https://www.readbyqxmd.com/read/27896654/bowel-preparation-is-associated-with-reduced-morbidity-in-elderly-patients-undergoing-elective-colectomy
#6
Scott C Dolejs, Michael J Guzman, Alyssa D Fajardo, Bruce W Robb, Bryan K Holcomb, Ben L Zarzaur, Joshua A Waters
BACKGROUND: Bowel preparation in elderly patients is associated with physiologic derangements that may result in postoperative complications. The aim of this study is to determine the impact of bowel preparation on postoperative outcomes in elderly patients. METHODS: Patients age 75 years and older who underwent elective colectomy were identified from the 2012-2014 American College of National Surgical Quality Improvement Program (ACS-NSQIP database). Patients were grouped into no bowel preparation, mechanical bowel preparation (MBP), oral antibiotic preparation (OABP), or combined MBP + OABP...
November 28, 2016: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/27892860/microvascular-lesions-and-changes-in-cell-proliferation-and-death-and-cytokine-expression-in-the-placentas-of-mice-experimentally-infected-with-equid-herpesvirus-1
#7
C N Zanuzzi, M E Bravi, M R Scrochi, F Nishida, N A Fuentealba, M E Diessler, H G Sguazza, C I Muglia, E J Gimeno, E L Portiansky, C G Barbeito, C M Galosi
This study describes the changes observed in the placentas of mice experimentally infected with an abortigenic strain of EHV-1 at mid-pregnancy and euthanized at days 3 and 4 post-infection. We analyzed microscopic vascular alterations, cell proliferation and death by immunohistochemistry, and the expression of IFN-γ, TNF-α and the IL-10 by qPCR and flow cytometry. Infected mice showed slight respiratory signs and ruffled fur during the first two days post-infection. Virus isolation and DNA detection were positive only in the lungs of the infected mice...
September 14, 2016: Research in Veterinary Science
https://www.readbyqxmd.com/read/27890995/endotracheobronchial-lymphoma-two-unusual-case-reports-and-review-of-article
#8
Trilok Chand, Avdhesh Bansal, Harsh Dua, Kapil Sharma
The tracheobronchial origin of non-Hodgkin's lymphoma (NHL) is a very rare presentation, and there are only a few case reports of primary tracheal or endobronchial NHL. We have two cases of primary tracheobronchial NHL; one case was incidentally diagnosed as anaplastic large cell lymphoma of endobronchial origin when a comprehensive workup and surgery were carried out for an endobronchial aspergilloma which was actually sitting on top of lymphoma. The second patient was a case of myelodysplastic syndrome who presented with acute respiratory distress; on thorough workup, he was found to have endotracheal B-cell lymphoma...
November 2016: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/27885052/enhanced-protective-responses-to-a-serotype-independent-pneumococcal-vaccine-when-combined-with-an-inactivated-influenza-vaccine
#9
Rachelle Babb, Austen Chen, Abiodun D Ogunniyi, Timothy R Hirst, Ervin E Kara, Shaun R McColl, Mohammed Alsharifi, James C Paton
Streptococcus pneumoniae and influenza are the world's foremost bacterial and viral respiratory pathogens. We have previously described a gamma-irradiated influenza (γ-FLU) vaccine that provides cross-protective immunity against heterosubtypic infections. More recently, we reported a novel non-adjuvanted gamma-irradiated S. pneumoniae (γ-PN) vaccine that elicits serotype-independent protection. Considering the clinical synergism of both pathogens, combination of a serotype-independent pneumococcal vaccine with a broad-spectrum influenza vaccine to protect against both infections would have considerable clinical impact...
November 24, 2016: Clinical Science (1979-)
https://www.readbyqxmd.com/read/27882737/neonatal-bowel-strangulation-rare-presentation-of-congenital-diaphragmatic-hernia
#10
Salvatore Arena, Gianfranco Scalfari, Nunzio Turiaco, Lucia Marseglia, Patrizia Perrone, Eloisa Gitto, Carmelo Romeo
We report a case of congenital diaphragmatic hernia (CDH) with perinatal bowel strangulation requiring intestinal resection. Ten hours after birth, the newborn started to be lethargic and developed bilious emesis. X-ray documented distended loops of bowel with air fluid levels in the abdomen and a gasless, non-homogeneous opacity of the left hemithorax, a right mediastinal shift and loss of the sharp left hemidiaphram line. On gastrographin enema the left colon was above the adjacent left diaphragm. Emergency surgery was performed at 16 h of age...
November 2016: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/27880854/increased-paternal-age-at-conception-is-associated-with-transcriptomic-changes-involved-in-mitochondrial-function-in-elderly-individuals
#11
Tapio Nevalainen, Laura Kananen, Saara Marttila, Juulia Jylhävä, Marja Jylhä, Antti Hervonen, Mikko Hurme
The increased paternal age at conception (PAC) has been associated with autism spectrum disorder (ASD), schizophrenia and other neurodevelopmental disorders, thus raising questions that imply, potential health concerns in the offspring. As opposed to female oogonia, the male germ cells undergo hundreds of cell divisions during the fertile years. Thus, the advanced paternal age is associated with increase of point mutations in the male spermatogonia DNA, implying that this could be the major driving mechanism behind the paternal age effect observed in the offspring...
2016: PloS One
https://www.readbyqxmd.com/read/27872198/in-female-rat-heart-mitochondria-oophorectomy-results-in-loss-of-oxidative-phosphorylation
#12
Natalia Pavón, Alfredo Cabrera-Orefice, Juan Carlos Gallardo-Pérez, Cristina Uribe-Alvarez, Nadia Rivero, Edgar Ricardo Vazquez-Martinez, Marco A Cerbón, Eduardo Martínez-Abundis, Juan Carlos Torres-Narvaez, Raúl Martínez-Memije, Francisco-Javier Roldán-Gómez, Salvador Uribe-Carvajal
Oophorectomy in adult rats affected cardiac mitochondrial function. Progression of mitochondrial alterations was assessed at one, two and three months post-surgery: at one-month very slight changes were observed, which increased at two and three months. Gradual effects included decrease in the rates of oxygen consumption and in respiratory uncoupling in the presence of complex I substrates, as well as compromised Ca2+ buffering ability. Malondialdehyde concentration increased, while the ROS-detoxifying enzyme Mn2+-superoxide-dismutase (MnSOD) and aconitase lost activity...
November 21, 2016: Journal of Endocrinology
https://www.readbyqxmd.com/read/27859043/monocyte-derived-dendritic-cells-enhance-protection-against-secondary-influenza-challenge-by-controlling-the-switch-in-cd82-t-cell-immunodominance
#13
Jazmina L G Cruz, José V Pérez-Girón, Anja Lüdtke, Sergio Gómez-Medina, Paula Ruibal, Juliana Idoyaga, César Muñoz-Fontela
Influenza virus infection triggers an increase in the number of monocyte-derived dendritic cells (moDCs) in the respiratory tract, but the role of these cells during antiviral immunity is still unclear. Here we show that during influenza infection, moDCs dominate the late activation of CD8(+) T cells and trigger the switch in immunodominance of the CD8(+) T-cell response from acidic polymerase (PA)-specificity to nucleoprotein (NP)-specificity. Abrogation of monocyte recruitment or depletion of moDCs strongly compromised host resistance to secondary influenza challenge...
November 18, 2016: European Journal of Immunology
https://www.readbyqxmd.com/read/27843288/leber-s-hereditary-optic-neuropathy-is-multiorgan-not-mono-organ
#14
REVIEW
Josef Finsterer, Sinda Zarrouk-Mahjoub
Leber's hereditary optic neuropathy (LHON) is a maternally inherited mitochondrial disorder with bilateral loss of central vision primarily due to mitochondrial DNA (mtDNA) mutations in subunits of complex I in the respiratory chain (primary LHON mutations), while other mtDNA mutations can also be causative. Since the first description, it is known that LHON is not restricted to the eyes but is a multisystem disorder additionally involving the central nervous system, ears, endocrinological organs, heart, bone marrow, arteries, kidneys, or the peripheral nervous system...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27832610/diaphragm-electromyographic-activity-following-unilateral-mid-cervical-contusion-injury-in-rats
#15
Sabhya Rana, Gary C Sieck, Carlos B Mantilla
Contusion type injuries to the spinal cord are characterized by tissue loss and disruption of spinal pathways. Mid-cervical spinal cord injuries impair the function of respiratory muscles and may contribute to significant respiratory complications. This study systematically assessed the impact of a 100-kDy unilateral C4 contusion injury on diaphragm muscle activity across a range of motor behaviors in rats. Chronic diaphragm EMG was recorded prior to injury, and at 1 and 7 days post injury. Histological analyses assessed the extent of perineuronal net formation, white matter sparing and phrenic motoneuron loss...
November 9, 2016: Journal of Neurophysiology
https://www.readbyqxmd.com/read/27828948/control-of-mitochondrial-function-and-cell-growth-by-the-atypical-cadherin-fat1
#16
Longyue L Cao, Dario F Riascos-Bernal, Prameladevi Chinnasamy, Charlene M Dunaway, Rong Hou, Mario A Pujato, Brian P O'Rourke, Veronika Miskolci, Liang Guo, Louis Hodgson, Andras Fiser, Nicholas E S Sibinga
Mitochondrial products such as ATP, reactive oxygen species, and aspartate are key regulators of cellular metabolism and growth. Abnormal mitochondrial function compromises integrated growth-related processes such as development and tissue repair, as well as homeostatic mechanisms that counteract ageing and neurodegeneration, cardiovascular disease, and cancer. Physiologic mechanisms that control mitochondrial activity in such settings remain incompletely understood. Here we show that the atypical Fat1 cadherin acts as a molecular 'brake' on mitochondrial respiration that regulates vascular smooth muscle cell (SMC) proliferation after arterial injury...
November 9, 2016: Nature
https://www.readbyqxmd.com/read/27827332/a-preventative-respiratory-protocol-to-identify-trauma-subjects-at-risk-for-respiratory-compromise-on-a-general-in-patient-ward
#17
Bethany A Nyland, Sarah K Spilman, Meghan E Halub, Keith D Lamb, Julie A Jackson, Trevor W Oetting, Sheryl M Sahr
BACKGROUND: Patients are at risk for respiratory complications after sustaining blunt chest trauma, yet contradictory evidence exists about the utility of prophylactic respiratory therapy to reduce respiratory complications in this population. This study assessed the effectiveness of a proactive respiratory protocol on an in-patient ward to identify trauma patients at risk for pulmonary complications, administer appropriate therapies, and prevent deterioration requiring transfer to the ICU...
December 2016: Respiratory Care
https://www.readbyqxmd.com/read/27826208/sedation-with-a-remifentanil-infusion-to-facilitate-rapid-awakening-and-tracheal-extubation-in-an-infant-with-a-potentially-compromised-airway
#18
Jeffrey Naples, Mark W Hall, Joseph D Tobias
Sedation is generally required during endotracheal intubation and mechanical ventilation in infants and children. While there are many options for the provision of sedation, the most commonly used agents such as midazolam and fentanyl demonstrate a context-sensitive half-life, which may result in a prolonged effect when these agents are discontinued following a continuous infusion. We present a 20-month-old infant who required endotracheal intubation due to respiratory failure following seizures. At the referring hospital, multiple laryngoscopies were performed with the potential for airway trauma...
2016: Journal of Pain Research
https://www.readbyqxmd.com/read/27823756/comparison-of-pulmonary-function-tests-and-perioperative-outcomes-after-robotic-assisted-pulmonary-lobectomy-vs-segmentectomy
#19
Maria F Echavarria, Anna M Cheng, Frank O Velez-Cubian, Emily P Ng, Carla C Moodie, Joseph R Garrett, Jacques P Fontaine, Lary A Robinson, Eric M Toloza
BACKGROUND: Lobectomy is standard treatment for early-stage lung cancer, but sublobar resection remains debated. We compared outcomes after robotic-assisted video-assisted thoracoscopic (R-VATS) segmentectomy vs lobectomy. METHODS: We retrospectively analyzed data from 251 consecutive patients who underwent R-VATS lobectomy (n = 208) or segmentectomy (n = 43) by a single surgeon over 36 months. Pulmonary function tests and perioperative outcomes were compared using Chi-squared test, unpaired Student t test, or Kruskal-Wallis test, with significance at P ≤ ...
September 29, 2016: American Journal of Surgery
https://www.readbyqxmd.com/read/27822722/completely-thoracoscopic-diaphragmatic-plication
#20
Gregor J Kocher, Adrian Zehnder, Ralph A Schmid
BACKGROUND: Thoracoscopic diaphragmatic plication for diaphragmatic paralysis with consecutive eventration and respiratory compromise is a desirable alternative to standard thoracotomy. Since minimally invasive techniques usually involve suturing of the diaphragm, most surgeons use a video-assisted approach with a minithoracotomy. Herein we describe our completely thoracoscopic technique for diaphragmatic plication including outcome. METHODS: We present our technique and experience for completely thoracoscopic diaphragmatic plication for the treatment of symptomatic diaphragmatic paralysis in six consecutive patients...
November 7, 2016: World Journal of Surgery
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