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Dmitry M Korzhnev, Dante Neculai, Sirano Dhe-Paganon, Cheryl H Arrowsmith, Irina Bezsonova
HLTF is a SWI2/SNF2-family ATP-dependent chromatin remodeling enzyme that acts in the error-free branch of DNA damage tolerance (DDT), a cellular mechanism that enables replication of damaged DNA while leaving damage repair for a later time. Human HLTF and a closely related protein SHPRH, as well as their yeast homologue Rad5, are multi-functional enzymes that share E3 ubiquitin-ligase activity required for activation of the error-free DDT. HLTF and Rad5 also function as ATP-dependent dsDNA translocases and possess replication fork reversal activities...
October 22, 2016: Journal of Biomolecular NMR
Julio Frenk, Octavio Gómez-Dantés
No abstract text is available yet for this article.
October 19, 2016: Lancet
Cecilia Veracini, Dante Martins Teixeira
The current work presents the results of a review of most of the European diaries and travel chronicles containing reports of New World non-human primates dating from the discovery of America in 1492 until the end of the sixteenth century. We report the integral texts translated into English of these literary sources, giving a critical interpretation from a historical and scientific point of view. We note the ways these primates were perceived and described, with attention to the most important characteristics that were highlighted by the first explorers...
October 20, 2016: Annals of Science
Fatima Tuba Yaylaci, Dante Cicchetti, Fred A Rogosch, Okan Bulut, Susan R Hetzel
The FK506 binding protein 5 gene (FKBP5) has been associated with susceptibility to pathogenic effects of childhood trauma including dissociative symptoms. This study examines the impact of maltreatment on dissociative tendencies in adolescence as moderated by the FKBP5 gene. Dissociative symptoms and variation within FKBP5 were assessed in a high-risk, low socioeconomic status community sample of 279 maltreated and 171 nonmaltreated adolescents. Following the assignment of haplotypes across four single nucleotide polymorphisms (rs3800373, rs9296158, rs1360780, and rs9470080), individuals with one or more copies of the CATT haplotype (N = 230) were grouped together and compared to individuals with zero copies of this haplotype (N = 185)...
October 20, 2016: Development and Psychopathology
Ennio Polilli, Federica Sozio, Paola Di Stefano, Antonina Sciacca, Tamara Ursini, Maurizio Paoloni, Jacopo Vecchiet, Dante Di Giammartino, Maria Pina Sciotti, Alessandro Grimaldi, Valerio Cortesi, Paolo Fazii, Elena Ricci, Claudio D'Amario, Giuseppe Ippolito, Lucio Pippa, Giustino Parruti
Undiagnosed cases of HIV infection in developed countries are estimated at 20-30% of individuals living with HIV. Web-based strategies may represent a new approach to easier, wider, and unrestricted access to early testing. The Abruzzo Region, Italy, developed a Web-based tool to recruit persons at high risk of HIV and other sexually transmitted infections (STIs). At the Website , browsers found information on STIs (HIV, hepatitis B and C, and syphilis), a structured questionnaire called "risk calculator" to assess one's own risk behaviors and direct booking of their test at one of six sites throughout the region...
October 2016: AIDS Patient Care and STDs
Theodore P Beauchaine, Dante Cicchetti
No abstract text is available yet for this article.
November 2016: Development and Psychopathology
Kalsea J Koss, E Mark Cummings, Patrick T Davies, Susan Hetzel, Dante Cicchetti
Depressive symptoms are prevalent and rise during adolescence. The present study is a prospective investigation of environmental and genetic factors that contribute to the growth in depressive symptoms and the frequency of heightened symptoms during adolescence. Participants included 206 mother-father-adolescent triads (M age at Time 1 = 13.06 years, SD = .51, 52% female). Harsh parenting was observationally assessed during a family conflict paradigm. DNA was extracted from saliva samples and genotyped for the 5-HTTLPR and BDNF Val66Met polymorphisms...
October 13, 2016: Journal of Clinical Child and Adolescent Psychology
Khadija Sheikh, Fumin Guo, Dante P I Capaldi, Alexei Ouriadov, Rachel L Eddy, Sarah Svenningsen, Grace Parraga
PURPOSE: To develop and assess ultrashort echo-time (UTE) magnetic resonance imaging (MRI) biomarkers of lung function in asthma patients. MATERIALS AND METHODS: Thirty participants including 13 healthy volunteers and 17 asthmatics provided written informed consent to UTE and pulmonary function tests in addition to hyperpolarized-noble-gas 3T MRI and computed tomography (CT) for asthmatics only. The difference in MRI signal-intensity (SI) across four lung volumes (full-expiration, functional-residual-capacity [FRC], FRC+1L, and full-inspiration) was determined on a voxel-by-voxel basis to generate dynamic proton-density (DPD) maps...
October 12, 2016: Journal of Magnetic Resonance Imaging: JMRI
Dante Rojas, Gaud Dervilly-Pinel, Nora Cesbron, Mylène Penot, Alexandre Sydor, Stéphanie Prévost, Bruno Le Bizec
Besides their development for therapeutic purposes, non-steroidal selective androgen receptor modulators (non-steroidal SARMs) are also known to impact growth associated pathways as ligands of androgenic receptors (AR). They present thus a potential for abuse in sports and food producing animals as an interesting alternative to anabolic androgenic steroids (AAS). These compounds are easily available and could therefore be (mis)used in livestock production as growth promoters. To prevent such practices, dedicated analytical strategies have to be developed for specific and sensitive detection of these compounds in biological matrices...
October 11, 2016: Drug Testing and Analysis
Héctor Gómez-Dantés, Nancy Fullman, Héctor Lamadrid-Figueroa, Lucero Cahuana-Hurtado, Blair Darney, Leticia Avila-Burgos, Ricardo Correa-Rotter, Juan A Rivera, Simon Barquera, Eduardo González-Pier, Tania Aburto-Soto, Elga Filipa Amorin de Castro, Tonatiuh Barrientos-Gutiérrez, Ana C Basto-Abreu, Carolina Batis, Guilherme Borges, Ismael Campos-Nonato, Julio C Campuzano-Rincón, Alejandra de Jesús Cantoral-Preciado, Alejandra G Contreras-Manzano, Lucia Cuevas-Nasu, Vanessa V de la Cruz-Gongora, Jose L Diaz-Ortega, María de Lourdes García-García, Armando Garcia-Guerra, Teresita González de Cossío, Luz D González-Castell, Ileana Heredia-Pi, Marta C Hijar-Medina, Alejandra Jauregui, Aida Jimenez-Corona, Nancy Lopez-Olmedo, Carlos Magis-Rodríguez, Catalina Medina-Garcia, Maria E Medina-Mora, Fabiola Mejia-Rodriguez, Julio C Montañez, Pablo Montero, Alejandra Montoya, Grea L Moreno-Banda, Andrea Pedroza-Tobías, Rogelio Pérez-Padilla, Amado D Quezada, Vesta L Richardson-López-Collada, Horacio Riojas-Rodríguez, Maria J Ríos Blancas, Christian Razo-Garcia, Martha P Romero Mendoza, Tania G Sánchez-Pimienta, Luz M Sánchez-Romero, Astrid Schilmann, Edson Servan-Mori, Teresa Shamah-Levy, Martha M Téllez-Rojo, José L Texcalac-Sangrador, Haidong Wang, Theo Vos, Mohammad H Forouzanfar, Mohsen Naghavi, Alan D Lopez, Christopher J L Murray, Rafael Lozano
BACKGROUND: Child and maternal health outcomes have notably improved in Mexico since 1990, whereas rising adult mortality rates defy traditional epidemiological transition models in which decreased death rates occur across all ages. These trends suggest Mexico is experiencing a more complex, dissonant health transition than historically observed. Enduring inequalities between states further emphasise the need for more detailed health assessments over time. The Global Burden of Diseases, Injuries, and Risk Factors Study 2013 (GBD 2013) provides the comprehensive, comparable framework through which such national and subnational analyses can occur...
October 5, 2016: Lancet
Giovanni Grandi, Lucrezia Pignatti, Francesca Ferrari, Giulia Dante, Isabella Neri, Fabio Facchinetti
INTRODUCTION: Inflammation might be an important underlying cause of preterm birth. Our aim is to explore whether vaginal administration α-lipoic acid reduces cervical inflammation and shortening after primary tocolysis. Matherials and Methods: Singleton pregnancies between 24-30 weeks remaining undelivered after hospitalization for preterm labor were randomly allocated to placebo (20 women, 15 analyzed) or vaginal ALA 400 mg daily (20 women, 17 analyzed) for 30 days. A cervical swab to quantify pro-inflammatory (IL1, IL2, IL6, IL8, TNFα) and anti-inflammatory (IL4, IL10) cytokines as well as transvaginal ultrasound cervical length measurement (CL) were performed before and after treatment...
October 9, 2016: Journal of Maternal-fetal & Neonatal Medicine
María Del C López Jordi, Marcia Ç Figueiredo, Dante Barone, Carolina Pereira
: Dentistry increasingly uses Information and Communication Technology (ICT), which has impact on teaching, research, the profession and dental care in general. However, there is a lack of valid information on ICT resources and use in Latin America. This was a descriptive, cross-sectional, multi-center, interdisciplinary study, the aim of which was to conduct a survey on how extensively ICT is used in Dentistry in Latin American countries by enquiring into two primary components: 1) use of ICT in student training and 2) use of ICT by professionals in consulting rooms and services...
April 2016: Acta Odontológica Latinoamericana: AOL
Susanna Alloisio, Patrizia Garbati, Federica Viti, Silvia Dante, Raffaella Barbieri, Giovanni Arnaldi, Alessia Petrelli, Arianna Gigoni, Paolo Giannoni, Rodolfo Quarto, Mario Nobile, Massimo Vassalli, Aldo Pagano
Recent advances in life sciences suggest that human and rodent cell responses to stimuli might differ significantly. In this context, the results achieved in neurotoxicology and biomedical research practices using neural networks obtained from mouse or rat primary culture of neurons would benefit of the parallel evaluation of the same parameters using fully differentiated neurons with a human genetic background, thus emphasizing the current need of neuronal cells with human origin. In this work, we developed a human functionally active neural network derived by human neuroblastoma cancer cells genetically engineered to overexpress NDM29, a non-coding RNA whose increased synthesis causes the differentiation toward a neuronal phenotype...
October 3, 2016: Molecular Neurobiology
Lipeng Bai, Danting Li, Jie Li, Zhengzhong Luo, Shumin Yu, Suizhong Cao, Liuhong Shen, Zhicai Zuo, Xiaoping Ma
Umbilical cord mesenchymal stem cells (UCMSCs) retain their intrinsic stem cell potential while at the same time displaying high proliferation rates, powerful differentiation capacity, and low immunogenicity. They can also secrete multiple bioactive molecules that exert specific physiological functions. Thus, UCMSCs represent excellent candidates for cell therapy in regenerative medicine and tissue engineering. Abundant preclinical research on different disease models has shown that UCMSCs can accelerate wound or nerve damage recovery and suppress tumor progression...
September 28, 2016: Acta Histochemica
Kathryn L Butler, David A Hirsh, Emil R Petrusa, D Dante Yeh, Dana Stearns, David E Sloane, Jeffrey A Linder, Gaurab Basu, Lisa A Thompson, Marc A de Moya
OBJECTIVE: Optimal methods for medical student assessment in surgery remain elusive. Faculty- and housestaff-written evaluations constitute the chief means of student assessment in medical education. However, numerous studies show that this approach has poor specificity and a high degree of subjectivity. We hypothesized that an objective structured clinical examination (OSCE) in the surgery clerkship would provide additional data on student performance that would confirm or augment other measures of assessment...
September 27, 2016: Journal of Surgical Education
Dante Cicchetti, Susan Hetzel, Fred A Rogosch, Elizabeth D Handley, Sheree L Toth
In the present investigation, differential methylation analyses of the whole genome were conducted among a sample of 548 school-aged low-income children (47.8% female, 67.7% Black, M age = 9.40 years), 54.4% of whom had a history of child maltreatment. In the context of a summer research camp, DNA samples via saliva were obtained. Using GenomeStudio, Methylation Module, and the Illumina Custom Model, differential methylation analyses revealed a pattern of greater methylation at low methylation sites (n = 197 sites) and medium methylation sites (n = 730 sites) and less methylation at high methylation sites (n = 907 sites) among maltreated children...
October 3, 2016: Development and Psychopathology
Amanda M Pattison, Dante J Merlino, Erik S Blomain, Scott A Waldman
Colorectal cancer (CRC) is a major cause of cancer-related mortality and morbidity worldwide. While improved treatments have enhanced overall patient outcome, disease burden encompassing quality of life, cost of care, and patient survival has seen little benefit. Consequently, additional advances in CRC treatments remain important, with an emphasis on preventative measures. Guanylyl cyclase C (GUCY2C), a transmembrane receptor expressed on intestinal epithelial cells, plays an important role in orchestrating intestinal homeostatic mechanisms...
September 28, 2016: World Journal of Gastroenterology: WJG
Dante Cicchetti, Susan Hetzel, Fred A Rogosch, Elizabeth D Handley, Sheree L Toth
A genome-wide methylation study was conducted among a sample of 114 infants (M age = 13.2 months, SD = 1.08) of low-income urban women with (n = 73) and without (n = 41) major depressive disorder. The Illumina HumanMethylation450 BeadChip array with a GenomeStudio Methylation Module and Illumina Custom model were used to conduct differential methylation analyses. Using the 5.0 × 10-7 p value, 2,119 loci were found to be significantly different between infants of depressed and nondepressed mothers. Infants of depressed mothers had greater methylation at low methylation sites (0%-29%) compared to infants of nondepressed mothers...
September 30, 2016: Development and Psychopathology
Dante Cicchetti
No abstract text is available yet for this article.
September 30, 2016: Development and Psychopathology
Nathan C Steinle, Dilsher S Dhoot, Carlos Quezada Ruiz, Alessandro A Castellarin, Dante J Pieramici, Robert F See, Steven C Couvillion, Maʼan A Nasir, Robert L Avery
PURPOSE: To assess the posterior vitreous release rates following a single, office-based intravitreal injection of expansile gas in treating vitreomacular traction. METHODS: Thirty eyes of 29 consecutive patients with symptomatic vitreomacular traction received a single, office-based intravitreal injection of up to 0.3 mL of 100% perfluoropropane (C3F8). RESULTS: Overall, vitreomacular traction release occurred in 25 of 30 eyes by the final follow-up visit (83% final release rate); furthermore, 90% (9 of 10 eyes) with diabetes mellitus released, 83% (5 of 6 eyes) with concurrent epiretinal membrane released, and 83% (5 of 6 eyes) previously treated with ocriplasmin released...
September 27, 2016: Retina
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