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https://www.readbyqxmd.com/read/28303507/laparoscopic-conversion-of-one-anastomosis-gastric-bypass-to-a-standard-roux-en-y-gastric-bypass
#1
Imed Ben Amor, Niccolo Petrucciani, Radwan Kassir, Abdullah Al Munifi, Thierry Piche, Tarek Debs, Jean Gugenheim
INTRODUCTION: One anastomosis gastric bypass (OAGB) demonstrated results similar to traditional Roux-en-Y procedures [1-3], in terms of weight loss and resolution of obesity-related comorbidities. The main controversy regarding OAGB is the concern for an association between biliary alkaline gastritis and esophageal or gastric cancer raised by some studies [4]. METHODS: We present the case of a 51-year-old woman with a BMI of 41 kg/m2 who underwent a laparoscopic OAGB in 2014...
March 16, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28288900/the-mechanism-of-back-pain-relief-by-spinal-manipulation-relies-on-decreased-temporal-summation-of-pain
#2
Christopher Randoll, Vincent Gagnon-Normandin, Jessica Tessier, Suzie Bo Is, Nabi Rustamov, Julie O'Shaughnessy, Martin Descarreaux, Mathieu Piché
The aim of the present study was to determine whether thoracic spinal manipulation (SM) decreases temporal summation of back pain. The study comprised two controlled experiments including 16 and 15 healthy participants, respectively. Each study included six sessions during which painful or non-painful electrical stimulations were delivered in three conditions: (1) control (2) light mechanical stimulus (MS) or (3) SM. Electrical stimulation was applied on the thoracic spine (T4), in the area where SM and MS were performed...
March 11, 2017: Neuroscience
https://www.readbyqxmd.com/read/28282143/proteome-analysis-of-human-perilymph-using-an-intraoperative-sampling-method
#3
Heike Andrea Schmitt, Andreas Pich, Anke Schröder, Verena Scheper, Giorgio Lilli, Günter Reuter, Thomas Lenarz
The knowledge about the etiology and pathophysiology of sensorineural hearing loss (SNHL) is still very limited. The project aims at the improvement of understanding different types of SNHL by proteome analysis of human perilymph. Sampling of perilymph has been established during inner ear surgeries (cochlear implant and vestibular schwannoma surgeries) and safety of the sampling method was determined by pure tone audiometry. An in-depth shot-gun proteomics approach was performed to identify cochlear proteins and individual proteome in perilymph of patients...
March 10, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28279799/pbca-based-polymeric-microbubbles-for-molecular-imaging-and-drug-delivery
#4
Patrick Koczera, Lia Appold, Yang Shi, Mengjiao Liu, Anshuman Dasgupta, Vertika Pathak, Tarun Ojha, Stanley Fokong, Zhuojun Wu, Marc van Zandvoort, Olga Iranzo, Alexander Kuehne, Andrij Pich, Fabian Kiessling, Twan Lammers
Microbubbles (MB) are routinely used as contrast agents for ultrasound (US) imaging. We describe different types of targeted and drug-loaded poly(n-butyl cyanoacrylate) (PBCA) MB, and demonstrate their suitability for multiple biomedical applications, including molecular US imaging and US-mediated drug delivery. Molecular imaging of angiogenic tumor blood vessels and inflamed atherosclerotic endothelium is performed by modifying the surface of PBCA MB with peptides and antibodies recognizing E-selectin and VCAM-1...
March 6, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28252257/quantification-of-small-gtpase-glucosylation-by-clostridial-glucosylating-toxins-using-multiplexed-mrm-analysis
#5
Johannes Junemann, Chantal M Lämmerhirt, Felix Polten, Ingo Just, Ralf Gerhard, Harald Genth, Andreas Pich
Large clostridial toxins (LCT) mono-O-glucosylate small GTPases of the Rho and Ras subfamily. As a result of the glucosylation the GTPases are inhibited and thereby corresponding downstream signaling pathways are disturbed. Current methods for quantifying the extent of glucosylation include sequential [(14) C]glucosylation, sequential [(32) P]ADP-ribosylation and Western Blot detection of non-glucosylated GTPases, with neither method allowing the quantification of the extent of glucosylation of an individual GTPase...
March 2, 2017: Proteomics
https://www.readbyqxmd.com/read/28219942/a-higher-sport-related-reinjury-risk-does-not-mean-inadequate-rehabilitation-the-methodological-challenge-of-choosing-the-correct-comparison-group
#6
REVIEW
Ian Shrier, Meng Zhao, Alexandre Piché, Pavel Slavchev, Russell J Steele
Previous injury is a well-established predictor of subsequent injury in sports medicine. Some have interpreted this to mean that either our current methods of rehabilitation are inadequate or there is some permanent damage to the tissue and 100% rehabilitation is not possible. In 2011, we illustrated that these analyses and interpretations failed to account for the fact that some athletes are more prone to get injured, either physiologically, or because of their role/type of play. We suggested that the appropriate analysis would simply require using statistical methods that measured how each individual athlete's risk changed from preinjury to postinjury...
February 20, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28217774/internal-structure-and-phase-transition-behavior-of-stimuli-responsive-microgels-in-peg-melts
#7
Florian Schneider, Andreea Balaceanu, Zhenyu Di, Yuri B Melnichenko, Jürgen Allgaier, Andrij Pich, Gerald J Schneider, Dieter Richter
In this work we investigated the behaviour of stimuli-responsive poly(N-vinylcaprolactam) (PVCL) microgels in poly(ethylene glycol) (PEGs) with a linear architecture. We performed small-angle neutron scattering (SANS) experiments at two different microgel concentrations and various temperatures. The results were compared with those on PVCL microgels in water. PVCL in PEG (molecular weight MW = 2 kg mol(-1)) exhibits a volume phase transition temperature (VPTT) at a temperature between 160 and 180 °C. The diameter of the swollen microgel is only slightly smaller than in water...
February 20, 2017: Soft Matter
https://www.readbyqxmd.com/read/28199320/the-use-of-urinary-proteomics-in-the-assessment-of-suitability-of-mouse-models-for-ageing
#8
Esther Nkuipou-Kenfack, Joost P Schanstra, Seerat Bajwa, Martin Pejchinovski, Claire Vinel, Cédric Dray, Philippe Valet, Jean-Loup Bascands, Antonia Vlahou, Thomas Koeck, Melanie Borries, Hauke Busch, Wibke Bechtel-Walz, Tobias B Huber, Karl L Rudolph, Andreas Pich, Harald Mischak, Petra Zürbig
Ageing is a complex process characterised by a systemic and progressive deterioration of biological functions. As ageing is associated with an increased prevalence of age-related chronic disorders, understanding its underlying molecular mechanisms can pave the way for therapeutic interventions and managing complications. Animal models such as mice are commonly used in ageing research as they have a shorter lifespan in comparison to humans and are also genetically close to humans. To assess the translatability of mouse ageing to human ageing, the urinary proteome in 89 wild-type (C57BL/6) mice aged between 8-96 weeks was investigated using capillary electrophoresis coupled to mass spectrometry (CE-MS)...
2017: PloS One
https://www.readbyqxmd.com/read/28188520/proteome-characterization-of-a-chromatin-locus-using-the-proteomics-of-isolated-chromatin-segments-approach
#9
Sophie L Kan, Nehmé Saksouk, Jérome Déjardin
The biological functions of given genomic regions are ruled by the local chromatin composition. The Proteomics of Isolated Chromatin segments approach (PICh) is a powerful and unbiased method to analyze the composition of chosen chromatin segments, provided they are abundant (repeated) or that the organism studied has a small genome. PICh can be used to identify novel and unexpected regulatory factors, or when combined with quantitative mass spectrometric approaches, to characterize the function of a defined factor at the chosen locus, by quantifying composition changes at the locus upon removal/addition of that factor...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28180981/does-pre-operative-magnetic-resonance-imaging-of-the-lumbar-multifidus-muscle-predict-clinical-outcomes-following-lumbar-spinal-decompression-for-symptomatic-spinal-stenosis
#10
Mario G T Zotti, F Vilas Boas, T Clifton, M Piche, W W Yoon, B J C Freeman
PURPOSE: To investigate whether pre-operative magnetic resonance imaging (MRI) of the lumbar multifidus muscle (LMM) would predict clinical outcomes following lumbar spinal decompression for symptomatic spinal stenosis. METHODS: A prospective cohort of patients with symptomatic neurogenic claudication, documented spinal stenosis on pre-operative MRI underwent spinal decompression. All subjects completed standardised outcome measures (Core Outcome Measures Index (COMI), Oswestry Disability Index (ODI v2...
February 8, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28161310/statistical-power-and-prediction-accuracy-in-multisite-resting-state-fmri-connectivity
#11
Christian Dansereau, Yassine Benhajali, Celine Risterucci, Emilio Merlo Pich, Pierre Orban, Douglas Arnold, Pierre Bellec
Connectivity studies using resting-state functional magnetic resonance imaging are increasingly pooling data acquired at multiple sites. While this may allow investigators to speed up recruitment or increase sample size, multisite studies also potentially introduce systematic biases in connectivity measures across sites. In this work, we measure the inter-site effect in connectivity and its impact on our ability to detect individual and group differences. Our study was based on real, as opposed to simulated, multisite fMRI datasets collected in N=345 young, healthy subjects across 8 scanning sites with 3T scanners and heterogeneous scanning protocols, drawn from the 1000 functional connectome project...
February 2, 2017: NeuroImage
https://www.readbyqxmd.com/read/28139119/proteomic-analysis-of-human-pluripotent-stem-cell-cardiomyogenesis-revealed-altered-expression-of-metabolic-enzymes-and-pdlim5-isoforms
#12
Sarah A Konze, Sebastian Werneburg, Astrid Oberbeck, Ruth Olmer, Henning Kempf, Monica Jara-Avaca, Andreas Pich, Robert Zweigerdt, Falk F R Buettner
Human pluripotent stem cells (hPSCs), both embryonic (hESCs) and induced (hiPSCs), can be differentiated into derivatives of the three germ layers and are promising tools in regenerative medicine. Cardiovascular diseases are the top-ranking cause of premature death worldwide, and cell replacement therapies based on in vitro differentiated cardiomyocytes might provide a promising perspective to cure patients in the future. The molecular processes during hPSC cardiomyogenesis are far from being fully understood, and we thus have focused here on characterizing the proteome along hESC in vitro differentiation into cardiomyocytes (CMs)...
February 14, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28130344/putting-phds-to-work-phf11-clears-the-way-for-exo1-in-double-strand-break-repair
#13
REVIEW
Karl E Zahn, Roger A Greenberg
In this issue of Genes & Development, Gong and colleagues (pp. 46-58) bring to light a functional role for plant homeodomain finger 11 (PHF11) in 5' end resection at DNA double-strand breaks (DSBs). Using the proteomics of isolated chromatin segments (PICh) technique to purify deprotected telomeres, PHF11 was enriched as cells mounted a DNA damage response (DDR) against exposed chromosome ends. The study reveals interactions between PHF11 and multiple DNA repair proteins and suggests that PHF11 mediates 5' end resection by negotiating RPA-coated DNA repair intermediates...
January 1, 2017: Genes & Development
https://www.readbyqxmd.com/read/28128895/functional-isoeugenol-modified-nanogel-coatings-for-the-design-of-biointerfaces
#14
Michael Kather, Merle Skischus, Pierre Kandt, Andrij Pich, Georg Conrads, Sabine Neuss
A new route for the synthesis of functional aqueous nanogels decorated with a controlled amount of surface-drafted isoeugenol molecules has been developed. Obtained nanogels exhibit two key functions: a) antibacterial activity against different oral pathogens and b) cell-adhesive and -growth-promoting properties. Functional nanogels can be potentially used as building blocks in the design of bioactive coatings on various implants preventing infections and accelerating tissue regeneration.
January 27, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28067034/gadolinium-loaded-poly-n-vinylcaprolactam-nanogels-synthesis-characterization-and-application-for-enhanced-tumor-mr-imaging
#15
Wenjie Sun, Sabrina Thies, Jiulong Zhang, Chen Peng, Guangyu Tang, Mingwu Shen, Andrij Pich, Xiangyang Shi
We report the synthesis of poly(N-vinylcaprolactam) nanogels (PVCL NGs) loaded with gadolinium (Gd) for tumor MR imaging applications. The PVCL NGs were synthesized via precipitation polymerization using the monomer N-vinylcaprolactam (VCL), the comonomer acrylic acid (AAc), and the degradable cross-linker 3,9-divinyl-2,4,8,10-tetraoxaspiro-[5,5]-undecane (VOU) in aqueous solution, followed by covalently binding with 2,2',2″-(10-(4-((2-aminoethyl)amino)-1-carboxy-4-oxobutyl)-1,4,7,10-tetraazacyclododecane-1,4,7-triyl) triacetic acid (NH2-DOTA-GA)/Gd complexes...
February 1, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28061761/body-image-satisfaction-and-weight-concerns-among-a-mediterranean-adult-population
#16
Maria Del Mar Bibiloni, Josep Ll Coll, Jordi Pich, Antoni Pons, Josep A Tur
BACKGROUND: People tend to underestimate their current weight and overestimate their height minimizing health risk factors. The aim of this study was to assess body weight satisfaction, acceptance of body image, weight concern and dieting habits among a Mediterranean adult population. METHODS: Cross-sectional survey was carried out (2009-2010) in the Balearic Islands, Spain. A random sample (n = 1081) of young (18-35 y.o.) and middle-aged adults (36-55 y.o.) was interviewed and anthropometrically measured...
January 6, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28051995/in-vitro-modelling-of-familial-amyloidotic-polyneuropathy-allows-quantitative-detection-of-transthyretin-amyloid-fibril-like-structures-in-hepatic-derivatives-of-patient-specific-induced-pluripotent-stem-cells
#17
Jeannine Hoepfner, Mandy Kleinsorge, Oliver Papp, Susanne Alfken, Robin Heiringhoff, Andreas Pich, Vanessa Sauer, Andree Zibert, Gudrun Göhring, Hartmut Schmidt, Malte Sgodda, Tobias Cantz
The transthyretin protein is thermodynamically destabilised by mutations in the transthyretin gene, promoting the formation of amyloid fibrils in various tissues. Consequently, impaired autonomic organ function is observed in patients suffering from transthyretin-related Familial Amyloidotic Polyneuropathy (FAP). The influence of individual genetic backgrounds on fibril formation as a potential cause of genotype-phenotype variations needs to be investigated in order to ensure efficient patient-specific therapies...
January 4, 2017: Biological Chemistry
https://www.readbyqxmd.com/read/28000467/ten-year-trends-2000-2010-in-bias-of-self-reported-weight-height-and-body-mass-index-in-a-mediterranean-adult-population
#18
Maria Del Mar Bibiloni, Josep Ll Coll, Rogelio Salas, Jordi Pich, Antoni Pons, Josep A Tur
 Aim: To assess trends in the biases of self-reported versus measured weight, height, and body mass index (BMI) in adults over the period 2000-2010 in a Mediterranean adult population. METHODS: The sample population consisted of young (18-35) and middle-aged (36-55) adults living in the Balearic Islands, Spain. The data represent 1,089 people during 1999-2000 and 1,081 people during 2000-2010. Weighted-based frequency estimates were used. RESULTS: While no differences between self-reported and measured weight, height and BMI were found in the respondents, it was seen that a decreasing percentage of the population knows their own weight and/or height...
November 29, 2016: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/27998779/systemic-blood-pressure-alters-cortical-blood-flow-and-neurovascular-coupling-during-nociceptive-processing-in-the-primary-somatosensory-cortex-of-the-rat
#19
Sae Uchida, Suzie Bois, Jean-Paul Guillemot, Hugues Leblond, Mathieu Piché
Inference on nociceptive and pain-related processes from functional magnetic resonance imaging is made with the assumption that the coupling of neuronal activity and cerebral hemodynamic changes is stable. However, since nociceptive stimulation is associated with increases in systemic arterial pressure, it is essential to determine whether this coupling remains the same during different levels of nociception and pain. The main objective of the present study was to compare the amplitude of local field potentials (LFP) and cerebral blood flow (CBF) changes in the primary somatosensory cortex during nociceptive electrical stimulation of the contralateral or ipsilateral forepaw in isoflurane-anesthetized rats, while manipulating mean arterial pressure (MAP)...
December 18, 2016: Neuroscience
https://www.readbyqxmd.com/read/27994808/effects-of-benzo-e-pyrene-on-reactive-oxygen-nitrogen-species-and-inflammatory-cytokines-induction-in-human-rpe-cells-and-attenuation-by-mitochondrial-involved-mechanism
#20
M Fernanda Estrago-Franco, M Tarek Moustafa, Mohammad Riazi-Esfahani, Ashish U Sapkal, Rhina Piche-Lopez, A Jayaprakash Patil, Ashish Sharma, Payam Falatoonzadeh, Marilyn Chwa, Georgia Luczy-Bachman, Baruch D Kuppermann, M Cristina Kenney
PURPOSE: To identify inhibitors that could effectively lower reactive oxygen/nitrogen species (ROS/RNS), complement and inflammatory cytokine levels induced by Benzo(e)pyrene [B(e)p], an element of cigarette smoke, in human retinal pigment epithelial cells (ARPE-19) in vitro. METHODS: ARPE-19 cells were treated for 24 hours with 200 μM, 100 μM, and 50 μM B(e)p or DMSO (dimethyl sulfoxide)-equivalent concentrations. Some cultures were pre-treated with ROS/RNS inhibitors (NG nitro-L-arginine, inhibits nitric oxide synthase; Apocynin, inhibits NADPH oxidase; Rotenone, inhibits mitochondrial complex I; Antimycin A, inhibits mitochondria complex III) and ROS/RNS levels were measured with a fluorescent H2 DCFDA assay...
October 2016: Journal of Ophthalmic & Vision Research
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