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https://www.readbyqxmd.com/read/28526609/effects-of-l-dopa-benserazide-co-treatment-on-colonic-excitatory-cholinergic-motility-and-enteric-inflammation-following-dopaminergic-nigrostriatal-neurodegeneration
#1
C Pellegrini, L Antonioli, R Colucci, E Tirotta, D Gentile, C Ippolito, C Segnani, G Levandis, S Cerri, R F Blandini, E Barocelli, V Ballabeni, N Bernardini, C Blandizzi, M Fornai
INTRODUCTION: The mainstay therapy for Parkinson's disease (PD) relies on L-3,4- dihydroxyphenylalanine (L-DOPA) plus a DOPA-decarboxylase inhibitor. However, their effects on colonic dysmotility and inflammation observed in PD are undetermined. This study examined the effects of L-DOPA plus benserazide (BE) on colonic motility and inflammation in rats with central nigrostriatal dopaminergic denervation. METHODS: Neurodegeneration was induced by 6-hydroxydopamine (6-OHDA) injection into the median forebrain bundle (MFB)...
May 16, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28512507/homonymous-hemianopsia-due-to-posterior-cortical-atrophy
#2
Francesco Pellegrini, Andrew G Lee, Pietro Zucchetta
A 63-year-old woman presented to her ophthalmologist complaining of reading difficulties for two years. Ophthalmological examination revealed a homonymous hemianopsia. Brain magnetic resonance imaging (MRI) scan was interpreted as normal, but positron emission tomography (PET) showed areas of posterior brain hypometabolism. This case highlights the high diagnostic suspicion that ophthalmologists should have regarding posterior cortical atrophy (including the visual variant of Alzheimer disease) in patients complaining of reading difficulties in the setting of a normal ophthalmic examination...
June 2017: Neuro-ophthalmology
https://www.readbyqxmd.com/read/28510280/modelling-the-iatrogenic-pancreatic-cancer-risk-after-islet-autotransplantation-in-mouse
#3
E Dugnani, V Pasquale, D Liberati, A Citro, E Cantarelli, S Pellegrini, P Marra, T Canu, G Balzano, M Scavini, A Esposito, C Doglioni, L Piemonti
Iatrogenic pancreatic cancer metastasis after islet infusion is a potential risk of islet autotransplantation performed after pancreatectomy. To model this risk islets and/or pancreatic exocrine clusters obtained from a genetically engineered mouse model for pancreatic ductal adenocarcinoma (the LSL-Kras(G12D/+) ;LSL-Trp53(R172H/+) ;Pdx-1-Cre, termed KPC mouse) were transplanted via the portal vein in syngeneic wild type (WT) severely diabetic recipients in the following treatment groups: group A (n=11) received KPC exocrine clusters in volume equal to 250 equivalent islets (IEQs); group B (n=12) received 250 WT IEQs mixed with KPC exocrine clusters (1:1 volume ratio); group C (n=5) received 250 KPC IEQs and group D (n=7) received 250 wild type IEQs...
May 16, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28504479/contribution-of-anthocyanin-rich-foods-in-obesity-control-through-gut-microbiota-interactions
#4
REVIEW
Giovana Jamar, Débora Estadella, Luciana Pellegrini Pisani
Obesity is characterized by low-grade inflammation and a number of metabolic disorders. Distal gut microbes' content (microbiota) is not yet fully understood but evidence shows that it is influenced by internal and external factors that modulate its composition and function. The evidence that gut microbiota composition can differ between healthy and obese individuals, as well as for those who maintain specific dietary habits, has led to the study of this environmental factor as a key link between the pathophysiology of obesity and gut microbiota...
May 15, 2017: BioFactors
https://www.readbyqxmd.com/read/28501982/smartphone-applications-for-hypertension-management-a-potential-game-changer-that-needs-more-control
#5
REVIEW
Gianfranco Parati, Camilla Torlasco, Stefano Omboni, Dario Pellegrini
PURPOSE OF THE REVIEW: This review article will summarize available data on mobile applications for the management of hypertension, by highlighting their potential for clinical use, the current limitations and the yet pending issues to be addressed in future studies. RECENT FINDINGS: The number of available applications related to arterial hypertension and their usage by smartphone owners is constantly increasing. However, most applications lack standardization and scientific validation, and security flaws could be an important, yet still underrated, issue...
June 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28498638/assessing-the-influence-of-mutation-on-gtpase-transition-states-using-x-ray-19f-nmr-and-dft-approaches
#6
Jonathan P Waltho, Yi Jin, Robert W Molt, Erika Pellegrini, Matthew J Cliff, Matthew W Bowler, Nigel G J Richards, G Michael Blackburn
We report X-ray crystallographic and 19F NMR studies of RhoA complexed with MgF3-, GDP, and RhoGAP having the mutation Arg85'Ala, which, when combined with DFT calculations, permit the identification of changes in TS properties. Thus, X-ray shows how Tyr34 maintains solvent exclusion and the core H-bond network in the active site by relocating to replace the missing Arg85' sidechain. 19F NMR data show deshielding effects that indicate the main function of Arg85´ is electronic polarization of the transferring phosphoryl group, primarily mediated by H-bonding to O3G and thence to PG...
May 12, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28494136/effects-of-an-abbreviated-obesity-intervention-supported-by-mobile-technology-the-engaged-randomized-clinical-trial
#7
Bonnie Spring, Christine A Pellegrini, Angela Pfammatter, Jennifer M Duncan, Alex Pictor, H Gene McFadden, Juned Siddique, Donald Hedeker
OBJECTIVE: To determine the effects on weight loss of three abbreviated behavioral weight loss interventions with and without coaching and mobile technology. METHODS: A randomized controlled efficacy study of three 6-month weight loss treatments was conducted in 96 adults with obesity: 1) self-guided (SELF), 2) standard (STND), or 3) technology-supported (TECH). STND and TECH received eight in-person group treatment sessions. SELF and STND used paper diaries to self-monitor diet, activity, and weight; TECH used a smartphone application with social networking features and wireless accelerometer...
May 11, 2017: Obesity
https://www.readbyqxmd.com/read/28487492/sequencing-of-cancer-cell-subpopulations-identifies-micrometastases-in-a-bladder-cancer-patient
#8
Kris Prado, Kelvin X Zhang, Matteo Pellegrini, Arnold I Chin
PURPOSE: Pathologic staging of bladder cancer patients remains a challenge. Standard-of-care histology exhibits limited sensitivity in detection of micrometastases, which can increase risk of cancer progression and delay potential adjuvant therapies. Here, we sought to develop a proof of concept novel molecular approach to improve detection of cancer micrometastasis. EXPERIMENTAL DESIGN: We combined fluorescence activated cell sorting and next-generation sequencing and performed whole-exome sequencing of total cancer cells and cancer cell subpopulations in multiple tumor specimens and regional lymph nodes in a single patient with muscle-invasive urothelial carcinoma of the bladder following radical cystectomy...
April 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28486243/mgmt-methylation-correlates-with-melphalan-pelvic-perfusion-survival-in-stage-iii-melanoma-patients-a-pilot-study
#9
Stefano Guadagni, Giammaria Fiorentini, Marco Clementi, Giancarlo Palumbo, Francesco Masedu, Marcello Deraco, Giovanni De Manzoni, Alessandro Chiominto, Marco Valenti, Cristina Pellegrini
Approximately 25% of melanoma patients with locoregional metastases are nonresponsive to new molecular target therapy and immunotherapy. When metastases are located in the pelvis, melphalan hypoxic perfusion can be an optional treatment. Because methylation of MGMT promoter increases the efficacy of alkylating agents, studies on melanoma outcome of patients treated with melphalan regional chemotherapy should consider this epigenetic change. This study aims to evaluate whether the survival of stage III melanoma patients treated with melphalan regional chemotherapy may be correlated with MGMT methylation status...
May 10, 2017: Melanoma Research
https://www.readbyqxmd.com/read/28484037/chromosome-level-genome-assembly-and-transcriptome-of-the-green-alga-chromochloris-zofingiensis-illuminates-astaxanthin-production
#10
Melissa S Roth, Shawn J Cokus, Sean D Gallaher, Andreas Walter, David Lopez, Erika Erickson, Benjamin Endelman, Daniel Westcott, Carolyn A Larabell, Sabeeha S Merchant, Matteo Pellegrini, Krishna K Niyogi
Microalgae have potential to help meet energy and food demands without exacerbating environmental problems. There is interest in the unicellular green alga Chromochloris zofingiensis, because it produces lipids for biofuels and a highly valuable carotenoid nutraceutical, astaxanthin. To advance understanding of its biology and facilitate commercial development, we present a C. zofingiensis chromosome-level nuclear genome, organelle genomes, and transcriptome from diverse growth conditions. The assembly, derived from a combination of short- and long-read sequencing in conjunction with optical mapping, revealed a compact genome of ∼58 Mbp distributed over 19 chromosomes containing 15,274 predicted protein-coding genes...
May 8, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28481387/trapeziectomy-with-ligament-reconstruction-and-tendon-interposition-versus-a-trapeziometacarpal-prosthesis-for-the-treatment-of-thumb-basal-joint-osteoarthritis
#11
María José Robles-Molina, Francisco López-Caba, Rafael C Gómez-Sánchez, Encarnación Cárdenas-Grande, Miguel Pajares-López, Pedro Hernández-Cortés
Numerous surgical procedures have been described to treat trapeziometacarpal osteoarthritis, but no approach is currently considered superior. Good long-term outcomes have been reported with multiple procedures. No studies have been published comparing outcomes of the Arpe joint replacement (Biomet, Valence, France) with those of ligament reconstruction and tendon interposition (LRTI) using the Burton-Pellegrini technique. The study objective was to compare clinical outcomes between these techniques. Sixty-five patients with Eaton stage III osteoarthritis of the thumb were included in this retrospective follow-up study...
May 8, 2017: Orthopedics
https://www.readbyqxmd.com/read/28475497/a-perspective-on-the-effect-of-the-80-hour-work-week-has-it-changed-the-graduating-orthopaedic-resident
#12
Vincent D Pellegrini
Orthopaedic residency education has changed substantially in recent decades because of the imposition of the 80-hour work week, a decrease in quality and quantity of general surgical education, regulations mandating closer trainee supervision, and an expansion of orthopaedic subspecialty rotations. These factors pose a challenge in efforts to prepare competent, confident, cautious, caring, and communicative orthopaedic residents within the traditional 5-year program. Evidence suggests that contemporary graduates are more intelligent, better balanced in life and work, and more in touch with humanistic aspects of medicine than were earlier graduates...
June 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28475433/understanding-barriers-and-facilitators-to-healthy-eating-and-physical-activity-from-patients-either-before-and-after-knee-arthroplasty
#13
Christine A Pellegrini, Gwendolyn Ledford, Rowland W Chang, Kenzie A Cameron
PURPOSE: We sought to identify patient-reported barriers and facilitators to healthy eating and physical activity among patients before or after knee arthroplasty. MATERIALS AND METHODS: Twenty patients with knee osteoarthritis aged 40-79 years who had knee arthroplasty surgery scheduled or completed within 3 months were interviewed. Interview topics included perceived barriers and facilitators to healthy eating and activity before or after surgery. Interviews were coded and analyzed using constant comparative analysis...
May 5, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28470794/barriers-to-research-awareness-among-nurses-in-italy
#14
EDITORIAL
Valentina Bressan, Annamaria Bagnasco, Monica Bianchi, Silvia Rossi, Francesca Moschetti, Michela Barisone, Ramona Pellegrini, Giuseppe Aleo, Fiona Timmins, Loredana Sasso
No abstract text is available yet for this article.
May 2017: Journal of Nursing Management
https://www.readbyqxmd.com/read/28470368/breast-cancer-survivors-preferences-for-technology-supported-exercise-interventions
#15
Siobhan M Phillips, David E Conroy, Sarah Kozey Keadle, Christine A Pellegrini, Gillian R Lloyd, Frank J Penedo, Bonnie Spring
PURPOSE: The purpose of this study was to explore breast cancer survivors' interest in and preferences for technology-supported exercise interventions. METHODS: Post-treatment survivors [n = 279; M age = 60.7 (SD = 9.7)] completed a battery of online questionnaires in August 2015. Descriptive statistics were calculated for all data. Logistic regression analyses were conducted to examine relationships between survivors' interest in a technology-supported exercise interventions and demographic, disease, and behavioral factors...
May 3, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28464483/occurrence-of-antibiotic-resistance-genes-in-the-faecal-dna-of-healthy-omnivores-ovo-lacto-vegetarians-and-vegans
#16
Vesna Milanović, Andrea Osimani, Lucia Aquilanti, Stefano Tavoletti, Cristiana Garofalo, Serena Polverigiani, Alice Litta-Mulondo, Luca Cocolin, Ilario Ferrocino, Raffaella Di Cagno, Silvia Turroni, Camilla Lazzi, Nicoletta Pellegrini, Francesca Clementi
SCOPE: The effects of long-term omnivore, ovo-lacto vegetarian and vegan diets on the occurrence of 12 antibiotic resistance (AR) genes in the human gut was studied. METHODS AND RESULTS: The faeces of 144 healthy volunteers recruited from Turin, Bari, Bologna and Parma were screened for the occurrence of genes conferring resistance to tetracyclines, macrolide-lincosamide-streptogramin B, vancomycin and β-lactams. Overall, erm(B), tet(W) and tet(M) were detected at the highest frequency...
May 2, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28464377/bile-salts-and-alkaline-ph-reciprocally-modulate-the-interaction-between-the-periplasmic-domains-of-vibrio-cholerae-toxr-and-toxs
#17
Charles R Midgett, Salvador Almagro-Moreno, Maria Pellegrini, Ronald K Taylor, Karen Skorupski, F Jon Kull
ToxR is a transmembrane transcription factor that is essential for virulence gene expression and human colonization by Vibrio cholerae. ToxR requires its operon partner ToxS, a periplasmic integral membrane protein, for full activity. These two proteins are thought to interact through their respective periplasmic domains, ToxRp and ToxSp. In addition, ToxR is thought to be responsive to various environmental cues, such as bile salts and alkaline pH, but how these factors influence ToxR is not yet understood...
May 2, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28461885/serum-uric-acid-kidney-function-and-acute-ischemic-stroke-outcomes-in-elderly-patients-a-single-cohort-perspective-study
#18
Lorenzo Falsetti, William Capeci, Nicola Tarquinio, Giovanna Viticchi, Mauro Silvestrini, Vania Catozzo, Agnese Fioranelli, Laura Buratti, Francesco Pellegrini
Chronic kidney disease and hyperuricemia have been associated to an increased risk and a worse prognosis in acute ischemic stroke. Several mechanisms, including platelet dysfunction, coagulation disorders, endothelial dysfunction, inflammation, and an increased risk of atrial fibrillation could be implicated. The role of serum uric acid in this setting is still object of debate. We enrolled all the consecutive patients admitted to our department for acute ischemic stroke. Cox regression analysis was used to evaluate the risk of in-hospital death considering serum uric acid levels and all the comorbidities...
February 20, 2017: Neurology International
https://www.readbyqxmd.com/read/28460238/microplastics-pollution-after-the-removal-of-the-costa-concordia-wreck-first-evidences-from-a-biomonitoring-case-study
#19
Carlo Giacomo Avio, Lara Roberta Cardelli, Stefania Gorbi, David Pellegrini, Francesco Regoli
Microplastics (MPs) represent a matter of growing concern for the marine environment. Their ingestion has been documented in several species worldwide, but the impact of specific anthropogenic activities remains largely unexplored. In this study, MPs were characterized in different benthic fish sampled after 2.5 years of huge engineering operations for the parbuckling project on the Costa Concordia wreck at Giglio Island. Fish collected in proximity of the wreck showed a high ingestion of microplastics compared to both fish from a control area and values reported worldwide...
April 28, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28457887/resistance-to-taxanes-in-triple-negative-breast-cancer-associates-with-the-dynamics-of-a-cd49f-tumor-initiating-population
#20
Jorge Gómez-Miragaya, Marta Palafox, Laia Paré, Guillermo Yoldi, Irene Ferrer, Sergi Vila, Patricia Galván, Pasquale Pellegrini, Hector Pérez-Montoyo, Ana Igea, Purificación Muñoz, Manel Esteller, Angel R Nebreda, Ander Urruticoechea, Idoia Morilla, Sonia Pernas, Fina Climent, María Teresa Soler-Monso, Ana Petit, Violeta Serra, Aleix Prat, Eva González-Suárez
Taxanes are a mainstay of treatment for breast cancer, but resistance often develops followed by metastatic disease and mortality. Aiming to reveal the mechanisms underlying taxane resistance, we used breast cancer patient-derived orthoxenografts (PDX). Mimicking clinical behavior, triple-negative breast tumors (TNBCs) from PDX models were more sensitive to docetaxel than luminal tumors, but they progressively acquired resistance upon continuous drug administration. Mechanistically, we found that a CD49f+ chemoresistant population with tumor-initiating ability is present in sensitive tumors and expands during the acquisition of drug resistance...
May 9, 2017: Stem Cell Reports
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