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https://www.readbyqxmd.com/read/28441010/a-new-instrumental-set-up-for-simultaneous-total-and-speciation-analysis-of-volatile-metal-loid-s-in-gas-and-liquefied-gas-samples
#1
Laura Freije-Carrelo, Mariella Moldovan, Jose Ignacio Garcia-Alonso, Thuy Diep Thanh Vo, Jorge Ruiz Encinar
Although analysis of metals and metalloids, such as arsenic, is widely spread in many different fields, their analysis in gas and liquefied gas samples is still a challenge. A new GC-ICP-MS set up has been developed for their simultaneous total and speciation analysis in gas and liquefied gas samples without the need of a preconcentration step. An arsine in nitrogen standard was used for optimization and evaluation of the system. Good linearity and detection limits in the very low ppt level for both total and speciation analyses were found...
April 25, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28435647/helical-tomotherapy%C3%A2-is-a-safe-and-feasible-technique-for-total-scalp-irradiation
#2
Francesco Cuccia, Vanessa Figlia, Antonella Palmeri, Francesco Verderame, Antonio Lo Casto, Mariella Mannino, Giuseppe Ferrera
Angiosarcoma of the scalp is a rare aggressive tumor that affects elderly patients. Chemoradiation is the treatment of choice for multicentric and extensive disease. The shape of the scalp represents a dosimetric challenge in terms of achieving a homogeneous concave dose distribution with coverage of the entire target volume and an acceptable organs-at-risk sparing. We report a case of an 81-year-old man with a multifocal angiosarcoma of the scalp treated with Helical TomoTherapy® (Accuray Inc., Sunnyvale, CA, USA) intensity modulated radiotherapy...
March 24, 2017: Rare Tumors
https://www.readbyqxmd.com/read/28424964/pharmacodynamic-effects-in-the-cerebrospinal-fluid-of-rats-after-intravenous-administration-of-different-asparaginase-formulations
#3
Andrea Ballerini, Federico Moro, Ilaria Fuso Nerini, Claudio Marcello Marzo, Angelo Di Clemente, Mariella Ferrari, Maurizio D'Incalci, Andrea Biondi, Antonella Colombini, Valentino Conter, Luca Porcu, Luigi Cervo, Carmelo Rizzari, Massimo Zucchetti
PURPOSE: Asparaginase (ASNase) is used to treat various hematological malignancies for its capacity to deplete asparagine (ASN) in serum and cerebrospinal fluid (CSF). Since the biological mechanisms underlying CSF asparagine depletion in humans are not yet fully elucidated, this study compared, for the first time, the pharmacological properties of three clinically used ASNase formulations in a rodent model. METHODS: Male Wistar rats were treated with E.coli-ASNase, PEG-ASNase, or ERW-ASNase at different doses...
April 19, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28415725/stat3-positive-tumor-cells-contribute-to-vessels-neoformation-in-primary-central-nervous-system-lymphoma
#4
Simona Ruggieri, Roberto Tamma, Nicoletta Resta, Francesco Albano, Nicoletta Coccaro, Daria Loconte, Tiziana Annese, Mariella Errede, Giorgina Specchia, Rebecca Senetta, Paola Cassoni, Domenico Ribatti, Beatrice Nico
With the aim of elucidating the relationship between Stat3 expression and tumor vessels abnormalities in the PCNLs, in this study we evaluated Stat3 and pStat3 expression by Real-time PCR and by immunohistochemistry in biopsy sections from PCNSL patients. Correlations of the expression levels with the presence of aberrant vessels were analyzed by confocal laser microscopy analysis, using FVIII as endothelial cell marker, CD133 and nestin as cancer stem cell (CSC) marker, CD20 as tumor cell marker, and Stat3...
March 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28407851/time-dependent-changes-and-prognostic-value-of-lactatemia-during-the-first-24%C3%A2-h-of-life-in-brachycephalic-newborn-dogs
#5
C Castagnetti, M Cunto, C Bini, J Mariella, S Capolongo, D Zambelli
Blood lactate concentration is known to be a good prognostic indicator associated with the severity of illness and the patient's outcome both in human and veterinary medicine. It also plays a significant role in the assessment of the newborn, being a good indicator of fetal hypoxia and the ideal predictor of morbidity at term in babies. In veterinary neonatal medicine, hyperlactatemia is considered a valid prognostic marker in critically ill foals; moreover, blood lactate measurement has been proposed for the evaluation of newborn viability and the assessment of fetal distress during delivery in dogs...
May 2017: Theriogenology
https://www.readbyqxmd.com/read/28397366/changes-in-the-global-strain-of-the-puborectalis-muscle-during-pregnancy-and-postpartum
#6
Anique T M Grob, Niklas Hitschrich, Maria K van de Waarsenburg, Mariëlla I J Withagen, Karlijn J Schweitzer, Carl H van der Vaart
INTRODUCTION: One of the functional parameters that can be assessed by ultrasound is muscle strain. Strain represents the amount of deformation from its original shape when forces are applied to the tissue under study. We set out to assess the global strain of the puborectalis muscle during and after pregnancy. OBJECTIVE: To evaluate the effect of pregnancy and child-delivery on global strain of the puborectalis muscle. METHOD: This is a secondary analysis of a prospective observational study on the association between stress urinary incontinence and levator muscle avulsion after delivery...
April 11, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28394807/patient-health-communication-mediating-effects-between-gastrointestinal-symptoms-and-gastrointestinal-worry-in-pediatric-inflammatory-bowel-disease
#7
James W Varni, Robert J Shulman, Mariella M Self, Shehzad A Saeed, Ashish S Patel, Samuel Nurko, Deborah A Neigut, Miguel Saps, George M Zacur, Chelsea V Dark, Cristiane B Bendo, John F Pohl
BACKGROUND: To investigate the effects of patient health communication regarding their inflammatory bowel disease (IBD) to their health care providers and significant others in their daily life as a mediator in the relationship between gastrointestinal symptoms and gastrointestinal worry in pediatric patients. METHODS: The Pediatric Quality of Life Inventory Gastrointestinal Symptoms, Gastrointestinal Worry, and Communication Scales, and Pediatric Quality of Life Inventory 4...
May 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28365909/a-mosaic-pattern-of-ini1-smarcb1-protein-expression-distinguishes-schwannomatosis-and-nf2-associated-peripheral-schwannomas-from-solitary-peripheral-schwannomas-and-nf2-associated-vestibular-schwannomas
#8
Rosario Caltabiano, Gaetano Magro, Agata Polizzi, Andrea Domenico Praticò, Andrea Ortensi, Valerio D'Orazi, Andrea Panunzi, Pietro Milone, Luigi Maiolino, Francesco Nicita, Gabriele Lorenzo Capone, Roberta Sestini, Irene Paganini, Mariella Muglia, Sebastiano Cavallaro, Salvatore Lanzafame, Laura Papi, Martino Ruggieri
BACKGROUND: The INI1/SMARCB1 gene protein product has been implicated in the direct pathogenesis of schwannomas from patients with one form of schwannomatosis [SWNTS1; MIM # 162091] showing a mosaic pattern of loss of protein expression by immunohistochemistry [93% in familial vs. 55% in sporadic cases]. AIM OF STUDY: To verify whether such INI1/SMARCB1 mosaic pattern could be extended to all schwannomas arising in the sporadic and familial schwannomatoses [i.e...
April 1, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28360267/decoupling-genetics-lineages-and-microenvironment-in-idh-mutant-gliomas-by-single-cell-rna-seq
#9
Andrew S Venteicher, Itay Tirosh, Christine Hebert, Keren Yizhak, Cyril Neftel, Mariella G Filbin, Volker Hovestadt, Leah E Escalante, McKenzie L Shaw, Christopher Rodman, Shawn M Gillespie, Danielle Dionne, Christina C Luo, Hiranmayi Ravichandran, Ravindra Mylvaganam, Christopher Mount, Maristela L Onozato, Brian V Nahed, Hiroaki Wakimoto, William T Curry, A John Iafrate, Miguel N Rivera, Matthew P Frosch, Todd R Golub, Priscilla K Brastianos, Gad Getz, Anoop P Patel, Michelle Monje, Daniel P Cahill, Orit Rozenblatt-Rosen, David N Louis, Bradley E Bernstein, Aviv Regev, Mario L Suvà
Tumor subclasses differ according to the genotypes and phenotypes of malignant cells as well as the composition of the tumor microenvironment (TME). We dissected these influences in isocitrate dehydrogenase (IDH)-mutant gliomas by combining 14,226 single-cell RNA sequencing (RNA-seq) profiles from 16 patient samples with bulk RNA-seq profiles from 165 patient samples. Differences in bulk profiles between IDH-mutant astrocytoma and oligodendroglioma can be primarily explained by distinct TME and signature genetic events, whereas both tumor types share similar developmental hierarchies and lineages of glial differentiation...
March 31, 2017: Science
https://www.readbyqxmd.com/read/28349974/sex-related-alterations-of-gut-microbiota-composition-in-the-btbr-mouse-model-of-autism-spectrum-disorder
#10
Lorena Coretti, Claudia Cristiano, Ermanno Florio, Giovanni Scala, Adriano Lama, Simona Keller, Mariella Cuomo, Roberto Russo, Raffaela Pero, Orlando Paciello, Giuseppina Mattace Raso, Rosaria Meli, Sergio Cocozza, Antonio Calignano, Lorenzo Chiariotti, Francesca Lembo
Alterations of microbiota-gut-brain axis have been invoked in the pathogenesis of autism spectrum disorders (ASD). Mouse models could represent an excellent tool to understand how gut dysbiosis and related alterations may contribute to autistic phenotype. In this study we paralleled gut microbiota (GM) profiles, behavioral characteristics, intestinal integrity and immunological features of colon tissues in BTBR T + tf/J (BTBR) inbred mice, a well established animal model of ASD. Sex differences, up to date poorly investigated in animal models, were specifically addressed...
March 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28301534/the-spermatogenic-process-of-the-common-vampire-bat-desmodus-rotundus-under-a-histomorphometric-view
#11
Danielle Barbosa Morais, Luciano Carlos Heringer Porcaro Puga, Tarcízio Antônio Rêgo de Paula, Mariella Bontempo Duca Freitas, Sérgio Luis Pinto da Matta
Among all bat species, Desmodus rotundus stands out as one of the most intriguing due to its exclusively haematophagous feeding habits. However, little is known about their spermatogenic cycle. This study aimed at describing the spermatogenic process of common vampire bats through testicular histomorphometric characterization of adult specimens, spermatogenic production indexes, description of stages of the seminiferous epithelium cycle and estimative of the spermatogenic process duration. Morphometrical and immunohistochemical analyzes for bromodeoxiuridine were conducted under light microscopy and ultrastructural analyzes were performed under transmission electron microscopy...
2017: PloS One
https://www.readbyqxmd.com/read/28279350/autophagy-and-neurodegeneration-pathogenic-mechanisms-and-therapeutic-opportunities
#12
REVIEW
Fiona M Menzies, Angeleen Fleming, Andrea Caricasole, Carla F Bento, Stephen P Andrews, Avraham Ashkenazi, Jens Füllgrabe, Anne Jackson, Maria Jimenez Sanchez, Cansu Karabiyik, Floriana Licitra, Ana Lopez Ramirez, Mariana Pavel, Claudia Puri, Maurizio Renna, Thomas Ricketts, Lars Schlotawa, Mariella Vicinanza, Hyeran Won, Ye Zhu, John Skidmore, David C Rubinsztein
Autophagy is a conserved pathway that delivers cytoplasmic contents to the lysosome for degradation. Here we consider its roles in neuronal health and disease. We review evidence from mouse knockout studies demonstrating the normal functions of autophagy as a protective factor against neurodegeneration associated with intracytoplasmic aggregate-prone protein accumulation as well as other roles, including in neuronal stem cell differentiation. We then describe how autophagy may be affected in a range of neurodegenerative diseases...
March 8, 2017: Neuron
https://www.readbyqxmd.com/read/28261077/commentary-gain-in-body-fat-is-associated-with-increased-striatal-response-to-palatable-food-cues-whereas-body-fat-stability-is-associated-with-decreased-striatal-response
#13
COMMENT
Silvia Cerolini, Mariella Pazzaglia, Caterina Lombardo
No abstract text is available yet for this article.
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28260061/subgingival-dysbiosis-in-smoker-and-non%C3%A2-smoker-patients-with-chronic-periodontitis
#14
Lorena Coretti, Mariella Cuomo, Ermanno Florio, Domenico Palumbo, Simona Keller, Raffaela Pero, Lorenzo Chiariotti, Francesca Lembo, Carlo Cafiero
Periodontitis is one of the most common oral inflammatory diseases, and results in connective tissue degradation and gradual tooth loss. It manifests with formation of periodontal pockets, in which anaerobic and Gram‑negative bacteria proliferate rapidly. Consequently, alteration of the subgingival microbiota is considered the primary etiologic agent of periodontitis. Previous studies have reported that smokers are at increased risk of periodontal disease, in both prevalence and severity, indicating that smoking is a risk factor for the onset and progression of the pathology...
April 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28256274/artefact-formation-during-acid-hydrolysis-of-saponins-from-medicago-spp
#15
Aldo Tava, Elisa Biazzi, Mariella Mella, Paolo Quadrelli, Pinarosa Avato
Artefact compounds obtained during acid hydrolysis of saponins from Medicago spp. (Fabaceae), have been monitored and evaluated by GC-FID. Their identification has been performed by GC-MS and (1)H and (13)C NMR. Saponins with different substituents on the triterpenic pentacyclic aglycones were considered, and their hydrolysis products were detected and quantified during 10 h of time course reaction. From soyasapogenol B glycoside the well known soyasapogenols B, C, D and F were obtained together with a previously undescribed sapogenol artefact identified as 3β,22β,24-trihydroxyolean-18(19)-en and named soyasapogenol H...
February 28, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28246439/the-interplay-between-defensins-and-microbiota-in-crohn-s-disease
#16
REVIEW
Lorena Coretti, Alessandro Natale, Mariella Cuomo, Ermanno Florio, Simona Keller, Francesca Lembo, Lorenzo Chiariotti, Raffaela Pero
Crohn's disease (CD) is a chronic inflammation of the intestinal mucosa, characterized by periods of acute recurrence and remission. Depending on the specific region affected, CD is classified as ileal CD or colonic CD. It is largely accepted that the intestinal microbiota is involved in the onset of the pathology. Indeed, a reduced immune tolerance to components of the intestinal commensal microbiota and inflammation of the intestinal barrier typifies patients with CD. Several studies have shown defective expression of intestinal antimicrobial peptides (AMPs) in patients with CD compared to controls, particularly defensins...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28243184/feasibility-and-impact-of-an-8-week-integrative-yoga-program-in-people-with-moderate-multiple-sclerosis-related-disability-a-pilot-study
#17
Evan T Cohen, David Kietrys, Susan Gould Fogerite, Mariella Silva, Kristen Logan, Donald A Barone, J Scott Parrott
BACKGROUND: This pilot study determined the feasibility of a specifically designed 8-week yoga program for people with moderate multiple sclerosis (MS)-related disability. We explored the program's effect on quality of life (QOL) and physical and mental performance. METHODS: We used a single-group design with repeated measurements at baseline, postintervention, and 8-week follow-up. Feasibility was examined through cost, recruitment, retention, attendance, and safety...
January 2017: International Journal of MS Care
https://www.readbyqxmd.com/read/28242000/cytokine-levels-in-colostrum-and-in-foals-serum-pre-and-post-suckling
#18
J Mariella, C Castagnetti, A Prosperi, A Scagliarini, A Peli
The purpose of this study is to investigate the presence of IL-4, IL-8, IL-13 and IFN-γ in equine colostrum and in foals' serum. Samples were obtained from 14 mares and their healthy foals. Soon after parturition, 10ml of colostrum was collected, filtered, centrifuged and frozen until assayed. Blood samples were obtained from each foal at birth (TO) and again after 24h (T24), after which they were frozen until assayed. Serum IgG was measured at 24h of age with an immunoturbidimetric quantitative method. Cytokine concentration was determined using commercially available ELISA tests...
March 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28238699/effect-of-ammonia-on-the-gene-expression-levels-of-the-freshwater-cyclopoid-eucyclops-serrulatus
#19
Tiziana Di Lorenzo, Marco Melita, Marco Cifoni, Diana M P Galassi, Alessio Iannucci, Stefano Biricolti, Massimo Gori, Mariella Baratti
Ammonia pollution is a critical issue in Europe, since more than half of the European freshwater bodies actually fail to meet EU quality standards for this chemical. In this study, the response of stress-related genes to a sublethal ammonia concentration has been investigated in the adults of the freshwater cyclopoid Eucyclops serrulatus. Two short-term exposures (12h and 24h) at 12mg/L NH4(+) have been tested. Results indicate that 12mg/L NH4(+) causes a significant increase in the expression of some proteins, namely CAT, HSP90 and HSP40, suggesting an activation of the protecting antioxidant system after both 12h and 24h...
February 21, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28228797/femoral-neck-s-fracture-in-fahr-s-syndrome-case-report
#20
Marcello Sallì, Antonio D'Arienzo, Mariella Bonanno, Salvatore Morello, Antonino Sanfilippo, Giulia Letizia Mauro, Michele D'Arienzo
Fahr's syndrome, also known as "Bilateral Striopallidodentate Calcinosis" (BSPDC) primitive, is a rare neurological disease characterized by the presence of idiopathic, bilateral, symmetrical and abnormal deposition of calcium in areas of the brain that control movements including the basal ganglia, dentate nuclei of the cerebellum, nuclei of thalamus and semi-oval center. We describe a case of a 76-year-old male patient underwent reduction and fixation of a subtrochanteric fracture with intramedullary nail...
September 2016: Clinical Cases in Mineral and Bone Metabolism
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