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https://www.readbyqxmd.com/read/29050400/metformin-reverses-trap1-mutation-associated-alterations-in-mitochondrial-function-in-parkinson-s-disease
#1
Julia C Fitzgerald, Alexander Zimprich, Daniel A Carvajal Berrio, Kevin M Schindler, Brigitte Maurer, Claudia Schulte, Christine Bus, Anne-Kathrin Hauser, Manuela Kübler, Rahel Lewin, Dheeraj Reddy Bobbili, Lisa M Schwarz, Evangelia Vartholomaiou, Kathrin Brockmann, Richard Wüst, Johannes Madlung, Alfred Nordheim, Olaf Riess, L Miguel Martins, Enrico Glaab, Patrick May, Katja Schenke-Layland, Didier Picard, Manu Sharma, Thomas Gasser, Rejko Krüger
The mitochondrial proteins TRAP1 and HTRA2 have previously been shown to be phosphorylated in the presence of the Parkinson's disease kinase PINK1 but the downstream signalling is unknown. HTRA2 and PINK1 loss of function causes parkinsonism in humans and animals. Here, we identified TRAP1 as an interactor of HTRA2 using an unbiased mass spectrometry approach. In our human cell models, TRAP1 overexpression is protective, rescuing HTRA2 and PINK1-associated mitochondrial dysfunction and suggesting that TRAP1 acts downstream of HTRA2 and PINK1...
September 1, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29049538/3d-printed-mitral-valve-models-affordable-simulation-for-robotic-mitral-valve-repair
#2
Ned Premyodhin, Divneet Mandair, Alice S Ferng, Timothy S Leach, Ryan P Palsma, Mohammad Z Albanna, Zain I Khalpey
OBJECTIVES: 3D printed mitral valve (MV) models that capture the suture response of real tissue may be utilized as surgical training tools. Leveraging clinical imaging modalities, 3D computerized modelling and 3D printing technology to produce affordable models complements currently available virtual simulators and paves the way for patient- and pathology-specific preoperative rehearsal. METHODS: We used polyvinyl alcohol, a dissolvable thermoplastic, to 3D print moulds that were casted with liquid platinum-cure silicone yielding flexible, low-cost MV models capable of simulating valvular tissue...
July 31, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29049283/the-impact-of-muscle-relaxation-techniques-on-the-quality-of-life-of-cancer-patients-as-measured-by-the-fact-g-questionnaire
#3
Paula Parás-Bravo, Paloma Salvadores-Fuentes, Cristina Alonso-Blanco, María Paz-Zulueta, Miguel Santibañez-Margüello, Domingo Palacios-Ceña, Ester Boixadera-Planas, César Fernández-de-Las-Peñas
INTRODUCTION: Patients with cancer frequently suffer from emotional distress, characterized by psychological symptoms such as anxiety or depression. The presence of psychological symptoms combined with the complex nature of oncology processes can negatively impact patients' quality of life. We aimed to determine the impact of a relaxation protocol on improving quality of life in a sample of oncological patients treated in the Spanish National Public Health System. MATERIALS AND METHODS: We conducted a multicenter interventional study without a control group...
2017: PloS One
https://www.readbyqxmd.com/read/29046228/should-we-perform-in-utero-mri-on-a-fetus-at-increased-risk-of-a-brain-abnormality-if-ultrasonography-is-normal-or-shows-non-specific-findings
#4
REVIEW
P D Griffiths, C Mooney, M Bradburn, D Jarvis
There are a number of reasons why a pregnant woman might be considered to have an increased risk of carrying a fetus with a brain abnormality, but they fall broadly into two groups. First, there may be a relevant family history usually, but not always, when a fetus/child from a previous pregnancy has a developmental brain abnormality and a clinical geneticist judges that there is a risk of recurrence. Second, there may be findings in their current pregnancy that increases the risk of the fetus either having a developmental brain abnormality or accruing acquired brain pathology...
October 15, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29045589/standardization-of-adult-transthoracic-echocardiography-reporting-in-agreement-with-recent-chamber-quantification-diastolic-function-and-heart-valve-disease-recommendations-an-expert-consensus-document-of-the-european-association-of-cardiovascular-imaging
#5
Maurizio Galderisi, Bernard Cosyns, Thor Edvardsen, Nuno Cardim, Victoria Delgado, Giovanni Di Salvo, Erwan Donal, Leyla Elif Sade, Laura Ernande, Madalina Garbi, Julia Grapsa, Andreas Hagendorff, Otto Kamp, Julien Magne, Ciro Santoro, Alexandros Stefanidis, Patrizio Lancellotti, Bogdan Popescu, Gilbert Habib
Aims: This European Association Cardiovascular Imaging (EACVI) Expert Consensus document aims at defining the main quantitative information on cardiac structure and function that needs to be included in standard echocardiographic report following recent ASE/EACVI chamber quantification, diastolic function, and heart valve disease recommendations. The document focuses on general reporting and specific pathological conditions such as heart failure, coronary artery and valvular heart disease, cardiomyopathies, and systemic diseases...
October 17, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29044484/meta-analysis-of-the-impact-of-surgical-approach-on-the-grade-of-mesorectal-excision-in-rectal-cancer
#6
REVIEW
B Creavin, M E Kelly, E Ryan, D C Winter
BACKGROUND: The subspecialization of colorectal surgeons, and improvements in the quality of mesorectal excision have revolutionized rectal cancer surgery. With the increasing use of minimally invasive techniques, the completeness of the mesorectal excision has been questioned. This study aimed to assess the pathological outcomes of open versus laparoscopic rectal resection. METHODS: A meta-analysis of RCTs was undertaken. The primary endpoint was the adequacy of the mesorectal excision...
November 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/29043986/potential-of-big-data-analytics-in-the-french-in-vitro-diagnostics-market
#7
Nicolas Dubois, Nicolas Garnier, Christophe Meune
The new paradigm of the big data raises many expectations, particularly in the field of health. Curiously, even though medical biology laboratories generate a great amount of data, the opportunities offered by this new field are poorly documented. For better understanding the clinical context of chronical disease follow-up, for leveraging preventive and/or personalized medicine, the contribution of big data analytics seems very promising. It is within this framework that we have explored to use data of a Breton group of laboratories of medical biology to analyze the possible contributions of their exploitation in the improvement of the clinical practices and to anticipate the evolution of pathologies for the benefit of patients...
October 18, 2017: Annales de Biologie Clinique
https://www.readbyqxmd.com/read/29041974/postoperative-functional-status-in-patients-with-supratentorial-superficial-low-grade-glioma
#8
Ji Zhang, Yin Sheng Chen, You-Ping Li, Zheng-Quan Zhu, Jian-Min Liu, Cheng-Cheng Guo, Qun-Ying Yang, Xiao-Li Wang, Ying-Hua Rao, Qing Mao, Wen-Yan Li, Lu Ma, Yun Qiang Yang, Shi-Yin Xiao
BACKGROUND: We investigated the functional status of adult supratentorial superficial low-grade glioma (ASS-LGG) after surgery and analyzed its relevant factors to guide the therapeutic strategy and improve the life quality of these patients. METHODS: Clinical materials from January 2008 to December 2010 in 104 adults with ASS-LGG were analyzed retrospectively. The follow-up period ranged from 6 months to 1.5 years. The logistic regression was used to evaluate the preoperative and postoperative variation of functional status in patients to disclose the relevant factors affecting postoperative functional status, such as age, gender, the duration of symptom, size and location of the tumor, hemisphere, resection degree, and tumor pathologic grade and preoperative Karnofsky performance status (Pre-KPS)...
October 17, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29040513/targeted-metabolomics-reveals-reduced-levels-of-polyunsaturated-choline-plasmalogens-and-a-smaller-dimethylarginine-arginine-ratio-in-the-follicular-fluid-of-patients-with-a-diminished-ovarian-reserve
#9
J M Chao de la Barca, T Boueilh, G Simard, L Boucret, V Ferré-L'Hotellier, L Tessier, C Gadras, P E Bouet, P Descamps, V Procaccio, P Reynier, P May-Panloup
STUDY QUESTION: Does the metabolomic profile of the follicular fluid (FF) of patients with a diminished ovarian reserve (DOR) differ from that of patients with a normal ovarian reserve (NOR)? SUMMARY ANSWER: The metabolomic signature of the FF reveals a significant decrease in polyunsaturated choline plasmalogens and methyl arginine transferase activity in DOR patients compared to NOR patients. WHAT IS KNOWN ALREADY: The composition of the FF reflects the exchanges between the oocyte and its microenvironment during its acquisition of gametic competence...
October 13, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29039883/volume-targeted-versus-pressure-limited-ventilation-in-neonates
#10
REVIEW
Claus Klingenberg, Kevin I Wheeler, Naomi McCallion, Colin J Morley, Peter G Davis
BACKGROUND: Damage caused by lung overdistension (volutrauma) has been implicated in the development of bronchopulmonary dysplasia (BPD). Modern neonatal ventilation modes can target a set tidal volume as an alternative to traditional pressure-limited ventilation (PLV) using a fixed inflation pressure. Volume-targeted ventilation (VTV) aims to produce a more stable tidal volume in order to reduce lung damage and stabilise the partial pressure of carbon dioxide (pCO2). OBJECTIVES: To determine whether VTV compared with PLV leads to reduced rates of death and death or BPD in newborn infants and to determine whether use of VTV affected outcomes including air leak, cranial ultrasound findings and neurodevelopment...
October 17, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29036794/assessing-the-effect-of-different-operation-techniques-on-postoperative-duplex-ultrasound-quality-after-carotid-endarterectomy
#11
E Grambow, T Heller, P Wieneke, C Weiß, E Klar, M Weinrich
BACKGROUND: Duplex ultrasound is the first choice in diagnostics and surveillance of stenoses of the internal carotid arteries before and even after surgery. Therefore, the quality of duplex ultrasound is crucial to investigate these vascular pathologies. OBJECTIVE: Aim of this study was the evaluation whether different surgical techniques affect the postoperative quality of duplex ultrasound. METHODS: In a time period from January to May 2015 duplex ultrasound of the cervical vessels was performed in 75 patients after unilateral endarterectomy of the internal carotid artery at our department between 2006 and 2012...
October 7, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29035088/the-last-25-years-of-obstructive-sleep-apnea-epidemiology-and-the-next-25
#12
Paul E Peppard, Erika W Hagen
Considerable new knowledge regarding the epidemiology of obstructive sleep apnea (OSA) in adults arose from large-scale population-based epidemiologic investigations that initiated in the late 1980s to 1990s; these investigations have continued to produce relevant findings in recent years. In this Perspective, we briefly comment on the past 25 years of adult population-based OSA epidemiology and discuss selected ways in which the field can further progress over the coming decades. Population-based studies have shown that OSA is common in both men and women, and that prevalence is increasing...
October 16, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29032820/methodological-quality-assessment-of-meta-analyses-in-endodontics
#13
REVIEW
Sereen Kattan, Su-Min Lee, Meetu R Kohli, Frank C Setzer, Bekir Karabucak
INTRODUCTION: The objectives of this review were to assess the methodological quality of published meta-analyses related to endodontics using the assessment of multiple systematic reviews (AMSTAR) tool and to provide a follow-up to previously published reviews. METHODS: Three electronic databases were searched for eligible studies according to the inclusion and exclusion criteria: Embase via Ovid, The Cochrane Library, and Scopus. The electronic search was amended by a hand search of 6 dental journals (International Endodontic Journal; Journal of Endodontics; Australian Endodontic Journal; Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology; Endodontics and Dental Traumatology; and Journal of Dental Research)...
October 9, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/29031628/ultrasound-and-the-complete-urologist-part-1-methodology
#14
Eugene M Fine
Computed tomography (CT) scanning is considered as the imaging study of choice for asymptomatic microhematuria according to the American Urological Association guidelines. For those patients with persistence of microhematuria after a negative initial examination, the guidelines suggest repeating the evaluation including CT scanning within 3 to 5 years. However, the cost and risk involved for utilizing this technology going forward is an issue, especially when the yield of finding significant pathology on subsequent imaging studies is exceedingly low...
October 2017: Urologic Oncology
https://www.readbyqxmd.com/read/29030944/noninvasive-detection-of-nasopharyngeal-carcinoma-based-on-saliva-proteins-using-surface-enhanced-raman-spectroscopy
#15
Xueliang Lin, Duo Lin, Xiaosong Ge, Sufang Qiu, Shangyuan Feng, Rong Chen
The present study evaluated the capability of saliva analysis combining membrane protein purification with surface-enhanced Raman spectroscopy (SERS) for noninvasive detection of nasopharyngeal carcinoma (NPC). A rapid and convenient protein purification method based on cellulose acetate membrane was developed. A total of 659 high-quality SERS spectra were acquired from purified proteins extracted from the saliva samples of 170 patients with pathologically confirmed NPC and 71 healthy volunteers. Spectral analysis of those saliva protein SERS spectra revealed specific changes in some biochemical compositions, which were possibly associated with NPC transformation...
October 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29028793/clinico-pathological-features-of-erythema-nodosum-leprosum-a-case-control-study-at-alert-hospital-ethiopia
#16
Edessa Negera, Stephen L Walker, Selfu Girma, Shimelis N Doni, Degafe Tsegaye, Saba M Lambert, Munir H Idriss, Yohanis Tsegay, Hazel M Dockrell, Abraham Aseffa, Diana N Lockwood
BACKGROUND: Leprosy reactions are a significant cause of morbidity in leprosy population. Erythema nodosum leprosum (ENL) is an immunological complication affecting approximately 50% of patients with lepromatous leprosy (LL) and 10% of borderline lepromatous (BL) leprosy. ENL is associated with clinical features such as skin lesions, neuritis, arthritis, dactylitis, eye inflammation, osteitis, orchitis, lymphadenitis and nephritis. ENL is treated mainly with corticosteroids and corticosteroids are often required for extended periods of time which may lead to serious adverse effects...
October 13, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29028759/which-domains-of-the-odi-best-predict-change-in-physical-function-in-patients-after-surgery-for-degenerative-lumbar-spondylolisthesis
#17
Hamadi A Murphy, Eugene Warnick, Richard McGintee, Kristen Nicholson, Douglas A Hollern, Christie Stawicki, Daniel Tarazona, Gregory D Schroeder, Barrett I Woods, Mark F Kurd, Jeffrey A Rihn, Greg D Anderson, Christopher K Kepler, Alan S Hilibrand, Alexander R Vaccaro, Kris E Radcliff
STUDY DESIGN: Retrospective Review OBJECTIVE.: The purpose of this study is to determine the differential improvement of the various individual items of the ODI and to determine their relationship to other measures of HRQOL. SUMMARY OF BACKGROUND DATA: The oswestry disability index (ODI) is an easily scored, common, ten-item questionnaire about symptoms relevant to lumbar spine pathology. It is not clear if all of the items can be reliably applied to spine surgery...
October 12, 2017: Spine
https://www.readbyqxmd.com/read/29025669/preparation-and-evaluation-of-squid-ink-polysaccharide-chitosan-as-a-wound-healing-sponge
#18
Na Huang, Jiali Lin, Sidong Li, Yifeng Deng, Songzhi Kong, Pengzhi Hong, Ping Yang, Mingneng Liao, Zhang Hu
A new type of wound healing agent was developed using two marine biomaterials (squid ink polysaccharide and chitosan) as carriers and calcium chloride as an initiator for coagulation. Based on central composite design-response surface methodology, comprehensive evaluation of appearance quality for composite sponges and water absorbency were used as evaluation indices to identify the optimized preparation conditions and further evaluate the performance of the squid ink polysaccharide-chitosan sponge (SIP-CS)...
January 1, 2018: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/29023975/motion-robust-high-resolution-3d-free-breathing-pulmonary-mri-using-dynamic-3d-image-self-navigator
#19
Wenwen Jiang, Frank Ong, Kevin M Johnson, Scott K Nagle, Thomas A Hope, Michael Lustig, Peder E Z Larson
PURPOSE: To achieve motion robust high resolution 3D free-breathing pulmonary MRI utilizing a novel dynamic 3D image navigator derived directly from imaging data. METHODS: Five-minute free-breathing scans were acquired with a 3D ultrashort echo time (UTE) sequence with 1.25 mm isotropic resolution. From this data, dynamic 3D self-navigating images were reconstructed under locally low rank (LLR) constraints and used for motion compensation with one of two methods: a soft-gating technique to penalize the respiratory motion induced data inconsistency, and a respiratory motion-resolved technique to provide images of all respiratory motion states...
October 11, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29023293/form-function-and-esthetics-in-prosthetically-rehabilitated-maxillary-defects
#20
Manish Mittal, Rohit Sharma, Ashish Kalra, Parvinder Sharma
PURPOSE: Patients with maxillofacial defects secondary to the removal of benign and malignant pathologies of midface have a profound impact on quality of life. The aim of this study was to collect and analyze the data pertaining to 4 designs of obturator by assessment of the patient with obturator functioning scale (OFS) MATERIALS AND METHODS:: This retrospective analysis included all the patients who underwent prosthetic rehabilitation of maxillary defects using 4 different types (conventional, cast partial, hollow bulb, and magnet retained) of obturators from 2009 to 2016 with minimum 1 year of follow up...
October 11, 2017: Journal of Craniofacial Surgery
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