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Automated PD

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https://www.readbyqxmd.com/read/29776755/neutral-ph-and-low-glucose-degradation-product-dialysis-fluids-induce-major-early-alterations-of-the-peritoneal-membrane-in-children-on-peritoneal-dialysis
#1
Betti Schaefer, Maria Bartosova, Stephan Macher-Goeppinger, Peter Sallay, Peter Vörös, Bruno Ranchin, Karel Vondrak, Gema Ariceta, Ariane Zaloszyc, Aysun K Bayazit, Uwe Querfeld, Rimante Cerkauskiene, Sara Testa, Christina Taylan, Johan VandeWalle, YokChin Yap, Rafael T Krmar, Rainer Büscher, Anne K Mühlig, Dorota Drozdz, Salim Caliskan, Felix Lasitschka, Sahar Fathallah-Shaykh, Enrico Verrina, Günter Klaus, Klaus Arbeiter, Raj Bhayadia, Anette Melk, Philipp Romero, Bradley A Warady, Franz Schaefer, Akos Ujszaszi, Claus Peter Schmitt
The effect of peritoneal dialysates with low-glucose degradation products on peritoneal membrane morphology is largely unknown, with functional relevancy predominantly derived from experimental studies. To investigate this, we performed automated quantitative histomorphometry and molecular analyses on 256 standardized peritoneal and 172 omental specimens from 56 children with normal renal function, 90 children with end-stage kidney disease at time of catheter insertion, and 82 children undergoing peritoneal dialysis using dialysates with low-glucose degradation products...
May 15, 2018: Kidney International
https://www.readbyqxmd.com/read/29775152/semi-automated-application-for-estimating-subthalamic-nucleus-boundaries-and-optimal-target-selection-for-deep-brain-stimulation-implantation-surgery
#2
John A Thompson, Salam Oukal, Hagai Bergman, Steven Ojemann, Adam O Hebb, Sara Hanrahan, Zvi Israel, Aviva Abosch
OBJECTIVE Deep brain stimulation (DBS) of the subthalamic nucleus (STN) has become standard care for the surgical treatment of Parkinson's disease (PD). Reliable interpretation of microelectrode recording (MER) data, used to guide DBS implantation surgery, requires expert electrophysiological evaluation. Recent efforts have endeavored to use electrophysiological signals for automatic detection of relevant brain structures and optimal implant target location. The authors conducted an observational case-control study to evaluate a software package implemented on an electrophysiological recording system to provide online objective estimates for entry into and exit from the STN...
May 18, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29764720/altered-somatosensory-processing-in-parkinson-s-disease-and-modulation-by-dopaminergic-medications
#3
Aimee J Nelson, Tasnuva Hoque, Carolyn Gunraj, Robert Chen
BACKGROUND: Somatosensory abnormalities contribute to the pathophysiology of Parkinson's disease (PD). The goal of this study was to identify abnormalities in the tactile-evoked activation of the somatosensory and motor cortices in PD, and in a sensorimotor circuit that traverses both of these cortical loci. The second goal was to investigate the impact of dopaminergic medication on these measures. METHODS: Individuals with PD (n = 10, age 61 ± 8 years) and aged-matched controls (n = 11, age 52...
May 7, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29748112/automated-assessment-of-levodopa-induced-dyskinesia-evaluating-the-responsiveness-of-video-based-features
#4
Michael H Li, Tiago A Mestre, Susan H Fox, Babak Taati
INTRODUCTION: Technological solutions for quantifying Parkinson's disease (PD) symptoms may provide an objective means to track response to treatment, including side effects such as levodopa-induced dyskinesia. Vision-based systems are advantageous as they do not require physical contact with the body and have minimal instrumentation compared to wearables. We have developed a vision-based system to quantify a change in dyskinesia as reported by patients using 2D videos of clinical assessments during acute levodopa infusions...
May 5, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29734812/droplet-reactor-system-that-can-be-automated-for-the-continuous-and-scalable-production-of-noble-metal-nanocrystals
#5
Guangda Niu, Lei Zhang, Aleksey Ruditskiy, Liduo Wang, Younan Xia
Noble-metal nanocrystals with well-controlled shapes or morphologies are of great interest for a variety of applications. In order to utilize these nanomaterials in consumer products, one has to produce the colloidal nanocrystals in large quantities while maintaining good controls over their physical parameters and properties. Droplet reactors have shown great potential for the continuous and scalable production of colloidal nanocrystals with controlled shapes. However, the efficiencies of most previously reported systems are still limited because of the complex post-treatment procedures...
May 7, 2018: Nano Letters
https://www.readbyqxmd.com/read/29727504/noninvasive-pk11195-pet-image-analysis-techniques-can-detect-abnormal-cerebral-microglial-activation-in-parkinson-s-disease
#6
Yeona Kang, P David Mozley, Ajay Verma, David Schlyer, Claire Henchcliffe, Susan A Gauthier, Ping C Chiao, Bin He, Anastasia Nikolopoulou, Jean Logan, Jenna M Sullivan, Kane O Pryor, Jacob Hesterman, Paresh J Kothari, Shankar Vallabhajosula
BACKGROUND AND PURPOSE: Neuroinflammation has been implicated in the pathophysiology of Parkinson's disease (PD), which might be influenced by successful neuroprotective drugs. The uptake of [11 C](R)-PK11195 (PK) is often considered to be a proxy for neuroinflammation, and can be quantified using the Logan graphical method with an image-derived blood input function, or the Logan reference tissue model using automated reference region extraction. The purposes of this study were (1) to assess whether these noninvasive image analysis methods can discriminate between patients with PD and healthy volunteers (HVs), and (2) to establish the effect size that would be required to distinguish true drug-induced changes from system variance in longitudinal trials...
May 4, 2018: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/29713584/pd-l1-testing-using-the-clone-22c3-pharmdx-kit-for-selection-of-patients-with-non-small-cell-lung-cancer-to-receive-immune-checkpoint-inhibitor-therapy-are-cytology-cell-blocks-a-viable-option
#7
Vanda F Torous, Deepa Rangachari, Benjamin P Gallant, Meghan Shea, Daniel B Costa, Paul A VanderLaan
Introduction: Programmed death ligand 1 (PD-L1) testing of non-small cell lung cancer (NSCLC) specimens helps select patients most likely to respond to immune checkpoint inhibitors. PD-L1 immunohistochemical testing is approved for formalin-fixed, paraffin-embedded (FFPE) surgical pathology specimens; however, the testing performance on FFPE cytology cell block specimens is unknown. Materials and Methods: The study is a retrospective cohort analysis of advanced stage NSCLC patients treated at our institution where tumor PD-L1 expression using the clone 22C3 pharmDx kit on the Dako Automated Link 48 platform was performed on either cytology cell block or surgical pathology specimens...
May 2018: Journal of the American Society of Cytopathology
https://www.readbyqxmd.com/read/29703605/a-paradigm-for-emulating-the-early-learning-stage-of-handwriting-performance-comparison-between-healthy-controls-and-parkinson-s-disease-patients-in-drawing-loop-shapes
#8
Rosa Senatore, Angelo Marcelli
We present a novel paradigm, aimed at emulating the early stage of handwriting learning in proficient writers, by asking them to produce a familiar shape through a novel (unfamiliar) motor plan. Handwriting of beginner writers is characterized by slower movements, reduced spatial precision, lower fluency and reduced force regulation compared to those observed in the handwriting production of proficient writers. Features observed in the ink trace obtained with the novel motor plan and performance comparison of the handwriting obtained by familiar and unfamiliar motor plan suggest that the proposed paradigm is able to elicit non-automated movements in proficient writers...
April 24, 2018: Human Movement Science
https://www.readbyqxmd.com/read/29694954/remote-monitoring-of-automated-peritoneal-dialysis-improves-personalization-of-dialytic-prescription-and-patient-s-independence
#9
Sabrina Milan Manani, Carlo Crepaldi, Anna Giuliani, Grazia Maria Virzì, Francesco Garzotto, Caterina Riello, Massimo de Cal, Mitchell H Rosner, Claudio Ronco
BACKGROUND: Remote monitoring (RM) supports a healthcare model that enhances patients' self-management. We evaluated the utility of RM in patients undergoing automated peritoneal dialysis (APD). METHODS: We observed 37 -RM-APD patients, 16 incidents, and 21 prevalents switched from traditional APD (T-APD). We observed the number of changes for APD prescription, the frequency of visits, and PD adequacy parameters during 1 year of RM utilization in APD. RESULTS: The APD prescriptions were modified more frequently in RM-APD vs...
April 25, 2018: Blood Purification
https://www.readbyqxmd.com/read/29661028/development-of-large-scale-manufacturing-of-adipose-derived-stromal-cells-for-clinical-applications-using-bioreactors-and-human-platelet-lysate
#10
Mandana Haack-Sørensen, Morten Juhl, Bjarke Follin, Rebekka Harary Søndergaard, Maria Kirchhoff, Jens Kastrup, Annette Ekblond
In vitro expanded adipose-derived stromal cells (ASCs) are a useful resource for tissue regeneration. Translation of small-scale autologous cell production into a large-scale, allogeneic production process for clinical applications necessitates well-chosen raw materials and cell culture platform. We compare the use of clinical-grade human platelet lysate (hPL) and fetal bovine serum (FBS) as growth supplements for ASC expansion in the automated, closed hollow fibre quantum cell expansion system (bioreactor)...
April 17, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29660160/digital-image-analysis-improves-precision-of-programmed-death-ligand-1-pd-l1-scoring-in-cutaneous-melanoma
#11
Viktor H Koelzer, Aline Gisler, Jonathan C Hanhart, Johannes Griss, Stephan N Wagner, Niels Willi, Gieri Cathomas, Melanie Sachs, Werner Kempf, Daniela S Thommen, Kirsten D Mertz
AIMS: Immune checkpoint inhibitors have become a successful treatment in metastatic melanoma. The high response rates in a subset of patients suggest that a sensitive companion diagnostic test is required. The predictive value of programmed death ligand 1 (PD-L1) staining in melanoma has been questioned due to inconsistent correlation with clinical outcome. Whether this is due to predictive irrelevance of PD-L1 expression or inaccurate assessment techniques remains unclear. The aim of this study was to develop a standardized digital protocol for the assessment of PD-L1 staining in melanoma and to compare the output data and reproducibility to conventional assessment by expert pathologists...
April 16, 2018: Histopathology
https://www.readbyqxmd.com/read/29626988/thrombin-generation-test-a-reliable-tool-to-evaluate-the-pharmacodynamics-of-vitamin-k-antagonist-rodenticides-in-rats
#12
Jourdi Georges, Lefèbvre Sebastien, Le Bonniec Bernard, Curis Emmanuel, Gaussem Pascale, Lattard Virginie, Siguret Virginie
Vitamin K antagonist rodenticide pharmacodynamics (PD) is studied in rodents with traditional laboratory tests. We wondered if thrombin generation test (TGT) could add value. Difethialone (10 mg/kg) was administered per os to 97 OFA-Sprague Dawley rats. PD was studied over a 72 h-period using the Calibrated Automated Thrombogram on platelet poor plasma before and after intoxication (3 female and 3 male rats for each 13 time points) and TGT parameters were compared with the prothrombin time (PT) and vitamin K dependent factor activities previously reported...
April 2018: Pesticide Biochemistry and Physiology
https://www.readbyqxmd.com/read/29587882/comparative-effectiveness-of-malaria-prevention-measures-a-systematic-review-and-network-meta-analysis
#13
Kinley Wangdi, Luis Furuya-Kanamori, Justin Clark, Jan J Barendregt, Michelle L Gatton, Cathy Banwell, Gerard C Kelly, Suhail A R Doi, Archie C A Clements
BACKGROUND: Malaria causes significant morbidity and mortality worldwide. There are several preventive measures that are currently employed, including insecticide-treated nets (ITNs, including long-lasting insecticidal nets and insecticidal-treated bed nets), indoor residual spraying (IRS), prophylactic drugs (PD), and untreated nets (UN). However, it is unclear which measure is the most effective for malaria prevention. We therefore undertook a network meta-analysis to compare the efficacy of different preventive measures on incidence of malaria infection...
March 27, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29555909/differential-expression-pattern-of-co-inhibitory-molecules-on-cd4-t-cells-in-uncomplicated-versus-complicated-malaria
#14
Annemieke Abel, Christiane Steeg, Francis Aminkiah, Otchere Addai-Mensah, Marylyn Addo, Nicola Gagliani, Christian Casar, Denis Dekugmen Yar, Ellis Owusu-Dabo, Thomas Jacobs, Maria Sophia Mackroth
The immune response of malaria patients is a main factor influencing the clinical severity of malaria. A tight regulation of the CD4+ T cell response or the induction of tolerance have been proposed to contribute to protection from severe or clinical disease. We therefore compared the CD4+ T cell phenotypes of Ghanaian children with complicated malaria, uncomplicated malaria, asymptomatic Plasmodium falciparum (Pf) infection or no infection. Using flow cytometric analysis and automated multivariate clustering, we characterized the expression of the co-inhibitory molecules CTLA-4, PD-1, Tim-3, and LAG-3 and other molecules implicated in regulatory function on CD4+ T cells...
March 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29553498/multiplexed-immunofluorescence-analysis-and-quantification-of-intratumoral-pd-1-tim-3-cd8-t-cells
#15
Clémence Granier, Emeline Vinatier, Elia Colin, Marion Mandavit, Charles Dariane, Virginie Verkarre, Lucie Biard, Rami El Zein, Corinne Lesaffre, Isabelle Galy-Fauroux, Hélène Roussel, Eléonore De Guillebon, Charlotte Blanc, Antonin Saldmann, Cécile Badoual, Alain Gey, Éric Tartour
Immune cells are important components of the tumor microenvironment and influence tumor growth and evolution at all stages of carcinogenesis. Notably, it is now well established that the immune infiltrate in human tumors can correlate with prognosis and response to therapy. The analysis of the immune infiltrate in the tumor microenvironment has become a major challenge for the classification of patients and the response to treatment. The co-expression of inhibitory receptors such as Program Cell Death Protein 1 (PD1; also known as CD279), Cytotoxic T Lymphocyte Associated Protein 4 (CTLA-4), T-Cell Immunoglobulin and Mucin Containing Protein-3 (Tim-3; also known as CD366), and Lymphocyte Activation Gene 3 (Lag-3; also known as CD223), is a hallmark of T cell exhaustion...
February 8, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29526852/plantar-stimulation-in-parkinsonians-from-biomarkers-to-mobility-randomized-controlled-trial
#16
Aline Souza Pagnussat, Ana F R Kleiner, Carlos R M Rieder, Anapaula Frantz, Jaira Ehlers, Camila Pinto, Gilson Dorneles, Carlos Alexandre Netto, Alessandra Peres, Manuela Galli
BACKGROUND: The decrease of Brain-Derived Neurotrophic Factor (BDNF) serum levels has been related to the pathophysiology of several neurodegenerative diseases as well as to neural plasticity and rehabilitation. Automated Mechanical Peripheral Stimulation (AMPS) has been investigated as a complementary therapy for Parkinson Disease (PD). OBJECTIVES: (1) to investigate the effects of AMPS on BDNF and Cortisol serum levels of subjects with PD; (2) to evidence the interplay between BDNF and Cortisol serum levels and the functional mobility improvement after AMPS treatment...
2018: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/29503329/neuroimaging-in-parkinsonian-disorders
#17
REVIEW
Madhavi Tripathi, Atin Kumar, Chandrasekhar Bal
Neuroimaging (NI) in Parkinson's disease (PD) includes functional techniques like positron emission tomography (PET) and single photon emission computed tomography (SPECT), and morphological imaging using magnetic resonance imaging (MRI) and transcranial sonography to probe different aspects of the neurobiology of PD. Changes in neurotransmitters in various regions of the brain and their influence on brain networks is the basis for the motor symptoms of PD which are interrogated by NI. The recent Movement Disorders Society Clinical Diagnostic Criteria for PD (MDS-PD) have included the results of a few of these neuroimaging techniques to serve as single supportive criteria or absolute exclusion criteria for the diagnosis of PD...
March 2018: Neurology India
https://www.readbyqxmd.com/read/29476038/the-nature-of-postural-tremor-in-parkinson-disease
#18
Michiel F Dirkx, Heidemarie Zach, Bastiaan R Bloem, Mark Hallett, Rick C Helmich
OBJECTIVE: To disentangle the different forms of postural tremors in Parkinson disease (PD). METHODS: In this combined observational and intervention study, we measured resting and postural tremor characteristics in 73 patients with tremulous PD by using EMG of forearm muscles. Patients were measured both "off" medication (overnight withdrawal) and after dispersible levodopa-benserazide 200/50 mg. We performed an automated 2-step cluster analysis on 3 postural tremor characteristics: the frequency difference with resting tremor, the degree of tremor suppression after posturing, and the dopamine response...
March 27, 2018: Neurology
https://www.readbyqxmd.com/read/29472099/neurotransmitter-activity-is-linked-to-outcome-following-subthalamic-deep-brain-stimulation-in-parkinson-s-disease
#19
Ruth L O'Gorman Tuura, Christian R Baumann, Heide Baumann-Vogel
INTRODUCTION: While the mechanisms underlying the therapeutic effects of deep brain stimulation (DBS) in Parkinson's Disease (PD) are not yet fully understood, DBS appears to exert a wide range of neurochemical effects on the network level, thought to arise from activation of inhibitory and excitatory pathways. The activity within the primary inhibitory (GABAergic) and excitatory (glutamatergic) neurotransmitter systems may therefore play an important role in the therapeutic efficacy of DBS in PD...
May 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29457707/peripheral-neurostimulation-breaks-the-shuffling-steps-patterns-in-parkinsonian-gait-a-double-blind-randomized-longitudinal-study-with-automated-mechanical-peripheral-stimulation
#20
Manuela Galli, Caterina Vicidomini, Ana F Rozin Kleiner, Laura Vacca, Veronica Cimolin, Claudia Condoluci, Fabrizio Stocchi, Maria F DE Pandis
BACKGROUND: The shuffling steps pattern is a typical feature of gait in patients affected by Parkinson's Disease (PD), which progressively reduces their quality of life, being related to the risk of falls in this population. Recently, Automated Mechanical Peripheral Stimulation (AMPS) was presented as an integrative rehabilitative treatment based on peripheral stimulation able to improve the gait spatiotemporal parameters in PD patients. AIM: To evaluate the effects of AMPS on shuffling steps pattern by analyzing the kinematic and spatio-temporal gait parameters...
February 19, 2018: European Journal of Physical and Rehabilitation Medicine
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