Read by QxMD icon Read


Andrea Barbuti, Patrizia Benzoni, Giulia Campostrini, Patrizia Dell'Era
Ten years ago Yamanaka's lab identified a way to reprogram terminally differentiated cells to a pluripotent state, similar to that of embryonic stem cell. This procedure opened the road for the generation of postmitotic human cells, that have completely lost the replication potential. The initial excitement waned when it was observed that the cells produced by this method are somehow immature and do not resemble the adult phenotype. In the absence of cellular markers that recognize the various maturation steps of induced pluripotent stem cell-derived human cardiomyocytes, we propose to follow their maturation looking at their electrophysiological profile...
September 6, 2016: Developmental Dynamics: An Official Publication of the American Association of Anatomists
Veronica Sansoni, Gianluca Vernillo, Silvia Perego, Andrea Barbuti, Giampiero Merati, Federico Schena, Antonio La Torre, Giuseppe Banfi, Giovanni Lombardi
Bone and energy metabolisms regulation depends on a two-way street aimed at regulating energy utilization. Mountain ultra-marathons are highly demanding aerobic performances that deeply affect the whole body homeostasis. In this study we aimed to investigate and characterize the metabolic profile (in terms of hormones involved in energy metabolism), the inflammatory adipokines, and the bone turnover; in particular the osteocalcin-mediated response has been compared in experienced mountain ultra-marathons runners versus control subjects...
July 15, 2016: Endocrine
Giovanni Lombardi, Gianluca Vernillo, Veronica Sansoni, Silvia Perego, Andrea Barbuti, Giampiero Merati, Federico Schena, Giuseppe Banfi, Antonio La Torre
No abstract text is available yet for this article.
June 8, 2016: Clinical Chemistry and Laboratory Medicine: CCLM
Roberto Barbuti, Stefano Chessa, Alessio Micheli, Rita Pucci
The goal of this research is to recognize the nest digging activity of tortoises using a device mounted atop the tortoise carapace. The device classifies tortoise movements in order to discriminate between nest digging, and non-digging activity (specifically walking and eating). Accelerometer data was collected from devices attached to the carapace of a number of tortoises during their two-month nesting period. Our system uses an accelerometer and an activity recognition system (ARS) which is modularly structured using an artificial neural network and an output filter...
2016: PloS One
G Caggiano, A Dambrosio, F Ioanna, S Balbino, G Barbuti, O De Giglio, G Diella, G Lovero, S Rutigliano, G Scarafile, A Baldassarre, L Vimercati, M Musti, M T Montagna
BACKGROUND: Methicillin-resistant S. aureus (MRSA) is a pathogen spread not only in the hospital environment but also in the community and amongst livestock (LA-MRSA). LA-MRSA can be transmitted to humans that live in close contact with MRSA-colonized animals, and human colonization and/or infection has been reported worldwide, particularly among those involved with livestock farming. In this study the authors evaluated the prevalence of S. aureus and MRSA among healthy carriers who worked in the food industry in Apulia, Southern Italy...
January 2016: Annali di Igiene: Medicina Preventiva e di Comunità
Viviana Meraviglia, Jianyan Wen, Luca Piacentini, Giulia Campostrini, Cheng Wang, Maria Cristina Florio, Valerio Azzimato, Lorenzo Fassina, Martin Langes, Johnson Wong, Michele Miragoli, Carlo Gaetano, Giulio Pompilio, Andrea Barbuti, Dario DiFrancesco, Deborah Mascalzoni, Peter P Pramstaller, Gualtiero I Colombo, Huei-Sheng Vincent Chen, Alessandra Rossini
Prior studies have demonstrated that founder cell type could influence induced pluripotent stem cells (iPSCs) molecular and developmental properties at early passages after establishing their pluripotent state. Herein, we evaluated the persistence of a functional memory related to the tissue of origin in iPSCs from syngeneic cardiac (CStC) vs skin stromal cells (SStCs). We found that, at passages greater than 15, iPSCs from cardiac stromal cells (C-iPSCs) produced a higher number of beating embryoid bodies than iPSCs from skin stromal cells (S-iPSCs)...
2016: Frontiers in Bioscience (Landmark Edition)
Anna Maria Barbuti, Zhe-Sheng Chen
Paclitaxel (Taxol(®)) is a member of the taxane class of anticancer drugs and one of the most common chemotherapeutic agents used against many forms of cancer. Paclitaxel is a microtubule-stabilizer that selectively arrests cells in the G2/M phase of the cell cycle, and found to induce cytotoxicity in a time and concentration-dependent manner. Paclitaxel has been embedded in novel drug formulations, including albumin and polymeric micelle nanoparticles, and applied to many anticancer treatment regimens due to its mechanism of action and radiation sensitizing effects...
2015: Cancers
Mirko Baruscotti, Annalisa Bucchi, Raffaella Milanesi, Manuel Paina, Andrea Barbuti, Tomaso Gnecchi-Ruscone, Elisabetta Bianco, Laura Vitali-Serdoz, Riccardo Cappato, Dario DiFrancesco
AIMS: Inappropriate Sinus Tachycardia (IST), a syndrome characterized by abnormally fast sinus rates and multisystem symptoms, is still poorly understood. Because of the relevance of HCN4 channels to pacemaker activity, we used a candidate-gene approach and screened IST patients for the presence of disease-causing HCN4 mutations. METHODS AND RESULTS: Forty-eight IST patients, four of whom of known familial history, were enrolled in the study. We initially identified in one of the patients with familial history the R524Q mutation in HCN4...
November 9, 2015: European Heart Journal
Sheema Sameen, Roberto Barbuti, Paolo Milazzo, Antonio Cerone, Marzia Del Re, Romano Danesi
The most challenging task in colorectal cancer research nowadays is to understand the development of acquired resistance to anti-EGFR drugs. The key reason for this problem is the KRAS mutations appearance after the treatment with monoclonal antibodies (moAb). Here we present a mathematical model for the analysis of KRAS mutations behavior in colorectal cancer with respect to moAb treatments. To evaluate the drug performance we have developed equations for two types of tumors cells, KRAS mutated and KRAS wild-type...
January 21, 2016: Journal of Theoretical Biology
Agnese Re, Simona Nanni, Aurora Aiello, Serena Granata, Claudia Colussi, Giulia Campostrini, Francesco Spallotta, Stefania Mattiussi, Valentina Pantisano, Carmen D'Angelo, Annamaria Biroccio, Alessandra Rossini, Andrea Barbuti, Dario DiFrancesco, Francesco Trimarchi, Alfredo Pontecorvi, Carlo Gaetano, Antonella Farsetti
The epigenetics of early commitment to embryonal cardiomyocyte is poorly understood. In this work, we compared the effect of thyroid hormone and that of anacardic acid, a naturally occurring histone acetylase inhibitor, or both in combination, on mouse embryonic stem cells (mES) differentiating into embryonal cardiomyocyte by embryoid bodies (EBs) formation. Although the results indicated that anacardic acid (AA) and thyroid hormone were both efficient in promoting cardiomyocyte differentiation, we noticed that a transient exposure of mES to AA alone was sufficient to enlarge the beating areas of EBs compared to those of untreated controls...
September 2016: Endocrine
Kalliopi Iliou, George Paraskevas, Panagiotis Kanavaros, Alexandra Barbouti, Aristidis Vrettakos, Christos Gekas, Panagiotis Kitsoulis
OBJECTIVE: To evaluate the correlation between the Manchester Grading Scale and the American Orthopaedic Foot and Ankle Society (AOFAS) score in patients with a hallux valgus deformity. SUBJECTS AND METHODS: The study sample included 181 feet of 122 patients with hallux valgus and 424 feet of 212 individuals without hallux valgus deformity as the control group. The severity of hallux valgus, utilizing a relative nonmetric scale, the Manchester Grading Scale, and the metric AOFAS score, was determined for all individuals in the hallux valgus and control groups...
2016: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
Viviana Meraviglia, Valerio Azzimato, Claudia Colussi, Maria Cristina Florio, Anna Binda, Alice Panariti, Khaled Qanud, Silvia Suffredini, Laura Gennaccaro, Michele Miragoli, Andrea Barbuti, Paul D Lampe, Carlo Gaetano, Peter P Pramstaller, Maurizio C Capogrossi, Fabio A Recchia, Giulio Pompilio, Ilaria Rivolta, Alessandra Rossini
Communication between cardiomyocytes depends upon gap junctions (GJ). Previous studies have demonstrated that electrical stimulation induces GJ remodeling and modifies histone acetylase (HAT) and deacetylase (HDAC) activities, although these two results have not been linked. The aim of this work was to establish whether electrical stimulation modulates GJ-mediated cardiac cell-cell communication by acetylation-dependent mechanisms. Field stimulation of HL-1 cardiomyocytes at 0.5 Hz for 24 h significantly reduced connexin43 (Cx43) expression and cell-cell communication...
October 2015: Journal of Molecular and Cellular Cardiology
Gianluca Vernillo, Luca Agnello, Andrea Barbuti, Silvia Di Meco, Giovanni Lombardi, Giampiero Merati, Antonio La Torre
PURPOSE: We examined the effects of an 8-week repeated-sprint (RS) training protocol on postexercise parasympathetic reactivation (PNSr) in healthy adults. METHODS: Eighteen male adults (24.3 ± 3.7 years) were assigned to either of two groups. One group (n = 9) performed RS training (EXP, 3 times week(-1), 18 maximal all-out 15-m sprints interspersed with 17 s of passive recovery); the other served as the control group (CON, n = 9). Performance before, during, and after was assessed by measuring RS ability time (S dec) and total sprint time...
November 2015: European Journal of Applied Physiology
Jaime Natan Eisig, Tomás Navarro-Rodriguez, Ana Cristina Sá Teixeira, Fernando Marcuz Silva, Rejane Mattar, Decio Chinzon, Christiane Haro, Márcio Augusto Diniz, Joaquim Prado Moraes-Filho, Ronnie Fass, Ricardo Correa Barbuti
Aim. To compare 10-day standard triple therapy versus sequential therapy as first-line treatment in patients infected with H. pylori. Methods. One hundred H. pylori positive patients (diagnosed by rapid urease test and histology), with average age of 47.2, M/F = 28/72, were randomized to receive either standard triple treatment (TT) as follows: lansoprazole 30 mg, clarithromycin 500 mg, and amoxicillin 1 g, b.i.d. for ten days, or sequential treatment (ST) as follows: lansoprazole 30 mg, amoxicillin and placebo 1...
2015: Gastroenterology Research and Practice
Fernando Marcuz Silva, Elaine Cristina Silveira de Queiroz, Tomás Navarro-Rodriguez, Ricardo Correa Barbuti, Rejane Mattar, Kiyoshi Iriya, Jin Hwa Lee, Jaime Natan Eisig
OBJECTIVES: The eradication of Helicobacter (H.) pylori allows peptic ulcers in patients infected with the bacteria to be cured. Treatment with the classic triple regimen (proton pump inhibitor, amoxicillin and clarithromycin) has shown decreased efficacy due to increased bacterial resistance to clarithromycin. In our country, the eradication rate by intention to treat with this regimen is 83%. In Brazil, a commercially available regimen for bacterial eradication that uses levofloxacin and amoxicillin with lansoprazole is available; however, its efficacy is not known...
May 2015: Clinics
O De Giglio, A Quaranta, G Barbuti, C Napoli, G Caggiano, M T Montagna
The safety of groundwater resources is a serious issue, particularly when these resources are the main source of water for drinking, irrigation and industrial use in coastal areas. In Italy, 85% of the water used by the public is of underground origin. The aim of this report is to analyze the main factors that make groundwater vulnerable. Soil characteristics and filtration capacity can promote or hinder the diffusion of environmental contaminants. Global climate change influences the prevalence and degree of groundwater contamination...
January 2015: Annali di Igiene: Medicina Preventiva e di Comunità
Andrea Barbuti, Richard B Robinson
Since the first reports on the isolation and differentiation of stem cells, and in particular since the early success in driving these cells down a cardiac lineage, there has been interest in the potential of such preparations in cardiac regenerative therapy. Much of the focus of such research has been on improving mechanical function after myocardial infarction; however, electrophysiologic studies of these preparations have revealed a heterogeneous mix of action potential characteristics, including some described as "pacemaker" or "nodal-like," which in turn led to interest in the therapeutic potential of these preparations in the treatment of rhythm disorders; several proof-of-concept studies have used these cells to create a biologic alternative to electronic pacemakers...
2015: Pharmacological Reviews
A Quaranta, O De Giglio, C Coretti, S Vaccaro, G Barbuti, L Strohmenger
BACKGROUND: The Ministry of Health published in November 2012 the "National guidelines for the prevention and clinical management of dental trauma in individuals during their developmental age". The aim of this study is to verify the knowledge among parents of children of primary schools to plan corrective actions. METHODS: The study was carried out filling in an anonymous questionnaire distributed to parents enrolled in three primary schools. RESULTS: Despite the publication of the National guidelines, the survey results confirm parents' lack of awareness, knowledge and skills in relation to dental trauma...
September 2014: Annali di Igiene: Medicina Preventiva e di Comunità
Ian J McGough, Florian Steinberg, Da Jia, Peter A Barbuti, Kirsty J McMillan, Kate J Heesom, Alan L Whone, Maeve A Caldwell, Daniel D Billadeau, Michael K Rosen, Peter J Cullen
Retromer is a protein assembly that plays a central role in orchestrating export of transmembrane-spanning cargo proteins from endosomes into retrieval pathways destined for the Golgi apparatus and the plasma membrane [1]. Recently, a specific mutation in the retromer component VPS35, VPS35(D620N), has linked retromer dysfunction to familial autosomal dominant and sporadic Parkinson disease [2, 3]. However, the effect of this mutation on retromer function remains poorly characterized. Here we established that in cells expressing VPS35(D620N) there is a perturbation in endosome-to-TGN transport but not endosome-to-plasma membrane recycling, which we confirm in patient cells harboring the VPS35(D620N) mutation...
July 21, 2014: Current Biology: CB
Pasquale Bove, Paolo Milazzo, Roberto Barbuti
BACKGROUND: Some species of water frogs originated from hybridization between different species. Such hybrid populations have a particular reproduction system called hybridogenesis. In this paper we consider the two species Pelophylax ridibundus and Pelophylax lessonae, and their hybrids Pelophylax esculentus. P. lessonae and P. esculentus form stable complexes (L-E complexes) in which P. esculentus are hemiclonal. In L-E complexes all the transmitted genomes by P. esculentus carry deleterious mutations which are lethal in homozygosity...
2014: BMC Evolutionary Biology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"