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https://www.readbyqxmd.com/read/28805308/lymphocyte-profile-and-cytokine-mrna-expression-in-peripheral-blood-mononuclear-cells-of-patients-with-recurrent-respiratory-papillomatosis-suggest-dysregulated-cytokine-mrna-response-and-impaired-cytotoxic-capacity
#1
Anna Holm, Olga Nagaeva, Ivan Nagaev, Christos Loizou, Göran Laurell, Lucia Mincheva-Nilsson, Karin Nylander, Katarina Olofsson
OBJECTIVES: Recurrent respiratory papillomatosis (RRP) is a relatively rare, chronic disease caused by Human Papilloma Virus (HPV) 6 and 11, and characterized by wart-like lesions in the airway affecting voice and respiratory function. The majority of HPV infections are asymptomatic and resolve spontaneously, however, some individuals are afflicted with persistent HPV infections. Failure to eliminate HPV 6 and 11 due to a defect immune responsiveness to these specific genotypes is proposed to play a major role in the development of RRP...
August 14, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28804553/sirt3-attenuates-doxorubicin-induced-cardiac-hypertrophy-and-mitochondrial-dysfunction-via-suppression-of-bnip3
#2
Qiong Du, Bin Zhu, Qing Zhai, Bo Yu
Doxorubicin (Dox) is an anthracycline antibiotic widely used in cancer treatment. Although its antitumor efficacy appears to be dose dependent, its clinical use is greatly restricted by development of cardiotoxicity. Sirtuin-3 (Sirt3) is the major deacetylase within the mitochondrial matrix that plays an important role in regulation of cardiac function. This study was performed to identify the regulatory role of Sirt3 on Dox-induced cardiac hypertrophy and mitochondrial dysfunction in rats in vivo and in vitro...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28803519/a-case-report-of-benzocaine-induced-methemoglobinemia
#3
Chaundra R Sewell, Michael P Rivey
Methemoglobinemia is a serious medical condition characterized by the disrupted binding of oxygen to iron on hemoglobin, with a consequent impaired oxygen delivery to body tissues. Various drugs including the local anesthetics such as benzocaine can cause acquired methemoglobinemia. The reported case describes methemoglobinemia that occurred in association with the use of topical benzocaine spray and lozenges in a previously healthy 51-year-old female who had undergone colon surgery to remove a bleeding polyp...
January 1, 2017: Journal of Pharmacy Practice
https://www.readbyqxmd.com/read/28802916/brain-region-and-sex-specific-alterations-in-mitochondrial-function-and-nf-%C3%AE%C2%BAb-signaling-in-the-tgcrnd8-mouse-model-of-alzheimer-s-disease
#4
Jelena Djordjevic, Ella Thomson, Subir Roy Chowdhury, Wanda M Snow, Claudia Perez, Tak Pan Wong, Paul Fernyhough, Benedict C Albensi
Alzheimer's disease (AD) is the most common late onset neurodegenerative disorder with indications that women are disproportionally affected. Mitochondrial dysfunction has been one of the most discussed hypotheses associated with the early onset and progression of AD, and it has been attributed to intraneuronal accumulation of amyloid β (Aβ). It was suggested that one of the possible mediators for Aβ-impaired mitochondrial function is the nuclear factor kappa B (NF-κB) signaling pathway. NF-κB plays important roles in brain inflammation and antioxidant defense, as well as in the regulation of mitochondrial function, and studies have confirmed altered NF-κB signaling in AD brain...
August 9, 2017: Neuroscience
https://www.readbyqxmd.com/read/28799841/high-usability-of-a-smartphone-application-for-reporting-symptoms-in-adults-with-cystic-fibrosis
#5
Jamie Wood, Sue Jenkins, David Putrino, Siobhain Mulrennan, Sue Morey, Nola Cecins, Kylie Hill
Introduction In cystic fibrosis, exacerbations impair lung function and health-related quality of life, increase healthcare costs and reduce survival. Delayed reporting of worsening symptoms can result in more severe exacerbations and worse clinical outcomes; therefore there is a need for a novel approach to facilitate the early identification and treatment of exacerbations in this population. This study investigated the usability of a smartphone application to report symptoms in adults with cystic fibrosis, and the observer agreement in clinical decision-making between senior clinicians interpreting smartphone application responses...
January 1, 2017: Journal of Telemedicine and Telecare
https://www.readbyqxmd.com/read/28799110/alteration-of-membrane-integrity-and-respiratory-function-of-brain-mitochondria-in-the-rats-chronically-exposed-to-a-low-dose-of-acetamiprid
#6
Salim Gasmi, Mohammed Kebieche, Rachid Rouabhi, Chouaib Touahria, Asma Lahouel, Zohra Lakroun, Sara Henine, Rachid Soulimani
The pesticides are used in several fields of agriculture and farms to protect crops against harmful insects and herbs. The increased and uncontrolled use of these pollutants is very hazardous for the population health. Consumption of contaminated food matrices with these pesticides could impair the cell integrity and its molecular function. The main aim of this present study was to evaluate the alteration of the integrity of mitochondrial membranes and respiratory chain potential in the brain of rats exposed during 90 days to acetamiprid (AC), organochlorine of the new generation...
August 10, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28798335/cd71-erythroid-suppressor-cells-impair-adaptive-immunity-against-bordetella-pertussis
#7
Afshin Namdar, Petya Koleva, Shima Shahbaz, Stacy Strom, Volker Gerdts, Shokrollah Elahi
Infant's immune system cannot control infection or respond to vaccination as efficiently as older individuals, a phenomenon that has been attributed to immunological immaturity. Recently, we challenged this notion and proposed the presence of actively immunosuppressive and physiologically enriched CD71(+) erythroid cells in neonates. Here we utilized Bordetella pertussis, a common neonatal respiratory tract pathogen, as a proof of concept to investigate the role of these cells in adaptive immunity. We observed that CD71(+) cells have distinctive immunosuppressive properties and prevent recruitment of immune cells to the mucosal site of infection...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28791431/glycine-receptors-and-glycine-transporters-targets-for-novel-analgesics
#8
REVIEW
Hanns Ulrich Zeilhofer, Mario A Acuña, Jacinthe Gingras, Gonzalo E Yévenes
Glycinergic neurotransmission has long been known for its role in spinal motor control. During the last two decades, additional functions have become increasingly recognized-among them is a critical contribution to spinal pain processing. Studies in rodent pain models provide proof-of-concept evidence that enhancing inhibitory glycinergic neurotransmission reduces chronic pain symptoms. Apparent strategies for pharmacological intervention include positive allosteric modulators of glycine receptors and modulators or inhibitors of the glial and neuronal glycine transporters GlyT1 and GlyT2...
August 8, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28790391/deficiency-of-cox7rp-a-mitochondrial-supercomplex-assembly-promoting-factor-lowers-blood-glucose-level-in-mice
#9
Sachiko Shiba, Kazuhiro Ikeda, Kuniko Horie-Inoue, Akitoshi Nakayama, Tomoaki Tanaka, Satoshi Inoue
Mitochondria are essential organelles to efficiently produce ATP by ATP-synthase, which uses a proton-gradient generated by respiratory chain complexes. We previously demonstrated that COX7RP/COX7A2L/SCAF1 is a key molecule that promotes respiratory supercomplex assembly and regulates energy generation. The contribution of COX7RP to metabolic homeostasis, however, remains to be clarified. In the present study, we showed a metabolic phenotype of Cox7rp knockout (Cox7rpKO) mice, which exhibit lower blood glucose levels after insulin or pyruvate injection...
August 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28790008/compensatory-effects-following-unilateral-diaphragm-paralysis
#10
Obaid U Khurram, Gary C Sieck, Carlos B Mantilla
Injury to nerves innervating respiratory muscles such as the diaphragm muscle results in significant respiratory compromise. Electromyography (EMG) and transdiaphragmatic pressure (Pdi) measurements reflect diaphragm activation and force generation. Immediately after unilateral diaphragm denervation (DNV), ventilatory behaviors can be accomplished without impairment, but Pdi generated during higher force non-ventilatory behaviors is significantly decreased. We hypothesized that 1) the initial reduction in Pdi during higher force behaviors after DNV is ameliorated after 14 days, and 2) changes in Pdi over time after DNV are associated with concordant changes in contralateral diaphragm EMG activity and ventilatory parameters...
August 5, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28781176/electrical-neuromodulation-of-the-respiratory-system-after-spinal-cord-injury
#11
REVIEW
Jan T Hachmann, Peter J Grahn, Jonathan S Calvert, Dina I Drubach, Kendall H Lee, Igor A Lavrov
Spinal cord injury (SCI) is a complex and devastating condition characterized by disruption of descending, ascending, and intrinsic spinal circuitry resulting in chronic neurologic deficits. In addition to limb and trunk sensorimotor deficits, SCI can impair autonomic neurocircuitry such as the motor networks that support respiration and cough. High cervical SCI can cause complete respiratory paralysis, and even lower cervical or thoracic lesions commonly result in partial respiratory impairment. Although electrophrenic respiration can restore ventilator-independent breathing in select candidates, only a small subset of affected individuals can benefit from this technology at this moment...
August 3, 2017: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/28777904/cardiovascular-and-respiratory-effects-of-the-neoprene-wetsuit-in-non-immersed-divers
#12
Claudio Marabotti, Renato Prediletto, Alessandro Scalzini, Alessandro Pingitore, Mirko Passera, Marco Laurino, Antonio L'Abatte
A neoprene wetsuit is widely used to reduce thermal dispersion during diving. Recent observations have pointed out that elastic recoil of the wetsuit might have significant compressive effects, able to affect water and electrolyte homeostasis during both dry and immersed conditions. The aim of this study was to evaluate the possible cardiovascular and respiratory effects of the neoprene wetsuit in dry conditions in a sample of experienced divers. Twenty-four (24) healthy divers were evaluated by Doppler-echocardiography and by spirometry in basal conditions and while wearing a full neoprene wetsuit...
March 2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/28775065/effect-of-hypoxia-and-hyperoxia-on-exercise-performance-in-healthy-individuals-and-in-patients-with-pulmonary-hypertension-a-systematic-review
#13
Silvia Ulrich, Simon Raphael Schneider, Konrad E Bloch
Exercise performance is determined by oxygen supply to working muscles and vital organs. In healthy individuals, exercise performance is limited in the hypoxic environment at altitude, when oxygen delivery is diminished due to the reduced alveolar and arterial oxygen partial pressures. In patients with pulmonary hypertension, exercise performance is already reduced near sea level due to impairments of the pulmonary circulation and gas exchange and, presumably, these limitations are more pronounced at altitude...
August 3, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28774205/effect-of-respiratory-rehabilitation-techniques-on-the-autonomic-function-in-patients-with-chronic-obstructive-pulmonary-disease-a-systematic-review
#14
Jibril Mohammed, Hellen Da Silva, Jessica Van Oosterwijck, Patrick Calders
Patients with chronic obstructive pulmonary disease (COPD) show several extrapulmonary abnormalities such as impairment in the autonomic function (AF). Similarly, the use of respiratory training techniques such as controlled breathing techniques, noninvasive mechanical ventilation (NIMV), and oxygen supplementation for AF modulation in patients with COPD is popular in existing literature. However, the evidence to support their use is nonexistent. A systematic search of studies reporting on the effect of controlled breathing techniques, NIMV, and/or oxygen supplementation techniques on AF outcome parameters was conducted in three online databases: PubMed, Embase, and Web of Science...
August 2017: Chronic Respiratory Disease
https://www.readbyqxmd.com/read/28770543/feasibility-and-safety-of-virtual-reality-based-early-neurocognitive-stimulation-in-critically-ill-patients
#15
Marc Turon, Sol Fernandez-Gonzalo, Mercè Jodar, Gemma Gomà, Jaume Montanya, David Hernando, Raquel Bailón, Candelaria de Haro, Victor Gomez-Simon, Josefina Lopez-Aguilar, Rudys Magrans, Melcior Martinez-Perez, Joan Carles Oliva, Lluís Blanch
BACKGROUND: Growing evidence suggests that critical illness often results in significant long-term neurocognitive impairments in one-third of survivors. Although these neurocognitive impairments are long-lasting and devastating for survivors, rehabilitation rarely occurs during or after critical illness. Our aim is to describe an early neurocognitive stimulation intervention based on virtual reality for patients who are critically ill and to present the results of a proof-of-concept study testing the feasibility, safety, and suitability of this intervention...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28768153/effects-of-mechanical-ventilation-on-gene-expression-profiles-in-renal-allografts-from-brain-dead-rats
#16
Maximilia C Hottenrott, Joerg Krebs, Paolo Pelosi, Thomas Luecke, Patricia R M Rocco, Carsten Sticht, Annette Breedijk, Benito Yard, Charalambos Tsagogiorgas
Pathophysiological changes of brain death (BD) are impairing distal organ function and harming potential renal allografts. Whether ventilation strategies influence the quality of renal allografts from BD donors has not been thoroughly studied. 28 adult male Wistar rats were randomly assigned to four groups: 1) no brain death (NBD) with low tidal volume/low positive endexpiratory pressure (PEEP) titrated to minimal static elastance of the respiratory system (LVT/OLPEEP); 2) NBD with high tidal volume/low PEEP (HVT/LPEEP); 3) brain death (BD) with LVT/OLPEEP; and 4) BD with HVT/LPEEP...
July 30, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28767561/mixed-reality-in-visceral-surgery-development-of-a-suitable-workflow-and-evaluation-of-intraoperative-use-cases
#17
Igor M Sauer, Moritz Queisner, Peter Tang, Simon Moosburner, Ole Hoepfner, Rosa Horner, Rudiger Lohmann, Johann Pratschke
OBJECTIVE: The paper evaluates the application of a mixed reality (MR) headmounted display (HMD) for the visualization of anatomical structures in complex visceral-surgical interventions. A workflow was developed and technical feasibility was evaluated. SUMMARY OF BACKGROUND DATA: Medical images are still not seamlessly integrated into surgical interventions and, thus, remain separated from the surgical procedure.Surgeons need to cognitively relate 2-dimensional sectional images to the 3-dimensional (3D) during the actual intervention...
August 1, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28766551/mutation-in-the-cox4i1-gene-is-associated-with-short-stature-poor-weight-gain-and-increased-chromosomal-breaks-simulating-fanconi-anemia
#18
Bassam Abu-Libdeh, Liza Douiev, Sarah Amro, Maher Shahrour, Asaf Ta-Shma, Chaya Miller, Orly Elpeleg, Ann Saada
We describe a novel autosomal recessive form of mitochondrial disease in a child with short stature, poor weight gain, and mild dysmorphic features with highly suspected Fanconi anemia due to a mutation in COX4I1 gene. Whole Exome Sequencing was performed then followed by Sanger confirmation, identified a K101N mutation in COX4I1, segregating with the disease. This nuclear gene encodes the common isoform of cytochrome c oxidase (COX) subunit 4 (COX 4-1), an integral regulatory part of COX (respiratory chain complex IV) the terminal electron acceptor of the mitochondrial respiratory chain...
August 2, 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/28765908/serca1-attenuates-diaphragm-relaxation-and-uptake-rate-of-serca-in-rats-with-acute-sepsis
#19
Jianyou Zhang, Hui Liu, Shitong Li, Jin Wu, Jianhong Sun
The present study aimed to investigate the effects of acute sepsis on diaphragm contractility and relaxation, via examining the Ca2+‑uptake function of sarco/endoplasmic reticulum Ca2+ adenosine triphosphatase (SERCA), and the protein levels of SERCA1, SERCA2 and the ryanodine receptor (RyR) of the sarcoplasmic reticulum (SR). A sepsis rat model was established through cecal ligation and puncture (CLP). A total of 6 and 12 h following CLP, the isometric contractile and relaxation parameters of the diaphragm were measured...
August 2, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28765251/severe-infection-in-antineutrophil-cytoplasmic-antibody-associated-vasculitis
#20
Aladdin J Mohammad, Mårten Segelmark, Rona Smith, Martin Englund, Jan-Åke Nilsson, Kerstin Westman, Peter A Merkel, David R W Jayne
OBJECTIVE: To compare the rate of severe infections after the onset of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) with the rate in the background population, and to identify predictors of severe infections among patients with AAV. METHODS: The study cohort was 186 patients with AAV diagnosed from 1998 to 2010, consisting of all known cases in a defined population in southern Sweden. For each patient, 4 age- and sex-matched reference subjects were randomly chosen from the background population...
August 1, 2017: Journal of Rheumatology
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