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Caroline M Taylor, Jean Golding, Alan M Emond
BACKGROUND/AIM: Studies on the effects of moderate prenatal exposure to cadmium (Cd) on birth outcomes have been contradictory and it has been suggested that effects may be partly masked by sex-specific effects. Our aim was to examine the association of Cd exposure in a large group of pregnant women with birth outcomes in the whole group of participants and by sex. METHODS: Pregnant women were enrolled in the Avon Longitudinal Study of Parents and Children (ALSPAC)...
October 25, 2016: Paediatric and Perinatal Epidemiology
Xu-Jie Deng, Cui-Hua Chen, Yu-Wen Qiu, Shu-Fang Xiao, Shu-Xin Liao, Mei Zhong, Fang Yang
OBJECTIVE: To explore the pattern of variations in middle cerebral artery peak systolic velocity (MCA PSV) and cardiothoracic ratio (CTR) during early pregnancy, establish their reference ranges and explore their correlation with the crown-rump length (CRL). METHODS: A total of 522 pregnant women with normal findings in antenatal examinations underwent routine color Doppler ultrasound examination to collect the data of MCA PSV, CTR and CRL. The reference ranges of MCA PSV and CTR for different CRL levels were established, and the correlation of MCA PSV and CTR with CRL was analyzed...
October 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
Selen Esin Yoldaş, Mehmet Bani, Didem Atabek, Haluk Bodur
INTRODUCTION: Tricalcium silicate cements can be used for pulp capping, pulpotomies, apical barrier formation in teeth with open apices, repair of root perforations, regenerative endodontics, and root canal filling. The aim of this study was to evaluate and compare the discoloration potential of 3 different tricalcium cements using a bovine tooth model. METHODS: Forty bovine anterior teeth have been used for the study. Crowns separated from the roots were randomly divided into 4 groups: the BioAggregate (IBC, Vancouver, Canada) group, the Biodentine (Septodont, Saint Maur des Fosses, France) group, the mineral trioxide aggregate Angelus (Angelus, Londrina, PR, Brazil) group, and the only blood group...
October 21, 2016: Journal of Endodontics
Hai-Rong Yu, Jia-Qi Hu, Zhuang Liu, Xiao-Jie Ju, Rui Xie, Wei Wang, Liang-Yin Chu
At present, selective and efficient removal of cesium ions (Cs(+)) from nuclear waste is of significant importance but still challenging. In this study, an easy-to-get and low-cost hydrogel adsorbent has been developed for effective adsorption and removal of Cs(+) from aqueous environment. The novel Cs(+)-recognizable poly(acrylic acid-co-benzo-18-crown-6-acrylamide) (poly(AAc-co-B18C6Am)) hydrogel is specifically designed with a synergistic effect, in which the AAc units are designed to attract Cs(+) via electrostatic attraction and the B18C6Am units are designed to capture the attracted Cs(+) by forming stable 2:1 "sandwich" complexes...
October 13, 2016: Journal of Hazardous Materials
Sinead Toomey, Stephen F Madden, Simon J Furney, Yue Fan, Mark McCormack, Carragh Stapleton, Mattia Cremona, Gianpiero L Cavalleri, Malgorzata Milewska, Naomi Elster, Aoife Carr, Joanna Fay, Elaine W Kay, Susan Kennedy, John Crown, William M Gallagher, Bryan T Hennessy, Alex J Eustace
BACKGROUND: Trastuzumab treatment for women with HER2-positive breast cancer (BC) resulted in the significant improvement of both relapse free survival (RFS) and overall survival (OS). However, many women who are classified as HER2-positive do not respond. Many studies have focused on the role of somatic mutations rather than germline polymorphisms in trastuzumab resistance. RESULTS: We completed an Agena MassArray screen of 10 ERBB-family single nucleotide polymorphisms (SNPs) in 194 adjuvant trastuzumab treated HER2-positive BC patients...
October 20, 2016: Oncotarget
Kirsten Reuter, Günther Thiele, Thomas Hafner, Frank Uhlig, Carsten von Hänisch
The first hybrid crown ether with two adjacent disilane fragments was synthesized through reaction of O(Si2Me4Cl)2 (3) with O(C2H4OH)2. By means of DFT calculations, the complexation ability of 1,2,4,5-tetrasila[12]crown-4 (7) towards Li(+) was determined to be considerably higher compared to [12]crown-4.
October 24, 2016: Chemical Communications: Chem Comm
Amjad Al Taki, Mohammed Khalesi, Muftah Shagmani, Islam Yahia, Fatma Al Kaddah
Objective. The current investigation was proposed to determine the impression of trained dental professionals and laypeople towards the modified smile esthetics. Materials and Methods. Twenty-six images were randomized in a survey and graded according to attractiveness by the orthodontists, general dentists, and laypeople. Photographs of gingival display, midline diastema, central incisor crown length, and lateral incisor crown width were manipulated with five minor changes in each. For smile arc and buccal corridor, two major changes were incorporated besides the ideal photograph...
2016: International Journal of Dentistry
S D Heintze, A Eser, D Monreal, V Rousson
OBJECTIVE: Dynamic loading is a more important predictor for the clinical longevity of ceramic crowns than static loading. However, dynamic loading machines are costly and mostly have only one test station. The SD Mechatronik Chewing Simulator (formerly Willytec) may be a cost-effective alternative to evaluate the fatigue resistance of metal ceramic crowns. METHOD: Four metal ceramic materials were tested on lower first molar crowns: GC InitiaI, Creation (Willy Geller), IPS InLine (Ivoclar Vivadent) and the new low-fusion IPS Style Ceram (Ivoclar Vivadent)...
September 14, 2016: Journal of the Mechanical Behavior of Biomedical Materials
Chi-Won Seo, Jae-Min Seo
No abstract text is available yet for this article.
October 19, 2016: Journal of Prosthetic Dentistry
Wendy Henwood, Helen Moewaka Barnes, Troy Brockbank, Waikarere Gregory, Kaio Hooper, Tim McCreanor
In Aotearoa New Zealand, Māori aspirations around land and water conflict with settler interests. As indigenous people, Māori struggle to enact agency over resources, despite Treaty (Treaty of Waitangi/Te Tiriti o Waitangi is an 1840 agreement between Maori and the crown) settlement processes returning some lands. Returns are complex since changes wrought by dispossession may be extreme, requiring multiple stakeholder engagements. Tāngonge, a heavily modified wetland, in northern Aotearoa New Zealand has been the subject of iwi (tribe or tribes) claims since the 1890s...
October 21, 2016: EcoHealth
Enrique Gonzalez-Díaz, Camino Fernández Fernández, Maria Jose Fernández Galguera, Alfonso Fernández Corona
INTRODUCTION AND HYPOTHESIS: The aim of this study was to describe perineum deformation during the final part of delivery and suggest a modification of the episiotomy cut to increase accuracy for obtaining a suitable angle (45°) for surgical wound suture. METHODS: This prospective study enrolled 45 primiparous women. The perineum at rest was marked with five lines (0°, 30°, 45°, 60°, 90°), and each line was marked with two dots (point A-B: to 2-3 cm from initial point in fourchette, respectively)...
October 21, 2016: International Urogynecology Journal
N Rostami, R C Shields, S A Yassin, A R Hawkins, L Bowen, T L Luo, A H Rickard, R Holliday, P M Preshaw, N S Jakubovics
Extracellular DNA (eDNA) has been identified in the matrix of many different monospecies biofilms in vitro, including some of those produced by oral bacteria. In many cases, eDNA stabilizes the structure of monospecies biofilms. Here, the authors aimed to determine whether eDNA is an important component of natural, mixed-species oral biofilms, such as plaque on natural teeth or dental implants. To visualize eDNA in oral biofilms, approaches for fluorescently stained eDNA with either anti-DNA antibodies or an ultrasensitive cell-impermeant dye, YOYO-1, were first developed using Enterococcus faecalis, an organism that has previously been shown to produce extensive eDNA structures within biofilms...
October 21, 2016: Journal of Dental Research
Adham Elsayed, Sebastian Wille, Majed Al-Akhali, Matthias Kern
STATEMENT OF PROBLEM: The whitish color of zirconia (ZrO2) abutments offers favorable esthetics compared with the grayish color of titanium (Ti) abutments. Nonetheless, ZrO2 has greater opacity, making it difficult to achieve natural tooth color. Therefore, lithium disilicate (LaT) abutments have been suggested to replace metal abutments. PURPOSE: The purpose of this in vitro study was to evaluate the fracture strength and failure mode of single-tooth implant restorations using ZrO2 and LaT abutments, and to compare them with titanium (Ti) abutments...
October 18, 2016: Journal of Prosthetic Dentistry
Lee Yien Thang, Hong Heng See, Joselito P Quirino
The low conductivity of separation electrolytes employed in nonaqueous capillary electrophoresis (NACE) limits the use of on-line sample concentration or stacking by field enhancement. Herein, micelle-to-solvent stacking (MSS) was performed by the simple injection of a micellar solution plug prior to electrokinetic injection of sample prepared under field-enhanced stacking conditions (known as field-enhanced sample injection, FESI). The proposed approach allowed a 214-625-fold improvement in peak signals for targeted anticancer drugs (e...
December 1, 2016: Talanta
Alison D Gernand, Rina Rani Paul, Barkat Ullah, Muhammad A Taher, Frank R Witter, Lee Wu, Alain B Labrique, Keith P West, Parul Christian
BACKGROUND: The best method of gestational age assessment is by ultrasound in the first trimester; however, this method is impractical in large field trials in rural areas. Our objective was to assess the validity of gestational age estimated from prospectively collected date of last menstrual period (LMP) using crown-rump length (CRL) measured in early pregnancy by ultrasound. METHODS: As part of a large, cluster-randomized, controlled trial in rural Bangladesh, we collected dates of LMP by recall and as marked on a calendar every 5 weeks in women likely to become pregnant...
October 21, 2016: Journal of Health, Population, and Nutrition
Takashi Nakamura, Yuta Chiba, Masahiro Naruse, Kan Saito, Hidemitsu Harada, Satoshi Fukumoto
Tooth crown morphogenesis is tightly regulated by the proliferation and differentiation of dental epithelial cells. Globoside (Gb4), a globo-series glycosphingolipid, is highly expressed during embryogenesis as well as organogenesis, including tooth development. We previously reported that Gb4 is dominantly expressed in the neutral lipid fraction of dental epithelial cells. However, because its functional role in tooth development remains unknown, we investigated the involvement of Gb4 in dental epithelial cell differentiation...
October 21, 2016: International Journal of Oral Science
Yaniv Zipori, Karen Reidy, T Gilchrist, Lex W Doyle, Mark P Umstad
BACKGROUND: Monochorionic diamniotic (MCDA) twin pregnancies are associated with adverse perinatal outcome. Intertwin discordances at the time of nuchal translucency (NT) screening may have a value in the prediction of fetal loss or twin-to-twin transfusion syndrome. We aimed to determine the ability of intertwin NT and crown rump length (CRL) discordances among MCDA twins to predict adverse outcomes. MATERIAL AND METHODS: All MCDA twins with a documented routine ultrasound at 11 to 13+6 weeks' gestation, and known pregnancy outcome between August 2003 and August 2012 were included...
October 21, 2016: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
Fernanda D Santa-Maria, Luiza Monteavaro Mariath, Cláudia S Poziomczyk, Marcia A P Maahs, Rafael F M Rosa, Paulo R G Zen, Lavínia Schüller-Faccini, Ana Elisa Kiszewski
OBJECTIVES: Current knowledge on dental anomalies in patients with incontinentia pigmenti (IP) has been obtained by examining case reports; however, an overall characterization of such alterations remains lacking. The objective of this study was to determine the frequency, type and location of dental alterations in IP using a case series. METHODS: Fourteen patients (9 children and 5 adults) with a clinical diagnosis of IP who presented dental anomalies were included in this study...
October 20, 2016: Clinical Oral Investigations
Giuseppe Lo Giudice, Angelo Lizio, Roberto Lo Giudice, Antonio Centofanti, Giuseppina Rizzo, Michele Runci, Angela Alibrandi, Marco Cicciù
Aim. Purpose of the present paper is to analyze the efficiency of different post-space irrigation protocols. Methods. 28 single rooted teeth were endodontically treated. After post-space preparation every sample was assigned to one of three experimental groups and to one control group. In each group different irrigation protocols were performed as follows: EDTA (Group A), 37% orthophosphoric acid (Group B), and EDTA + 37% orthophosphoric acid with ultrasounds activation (Group C). In the control group (Group D) the irrigate association was not activated by ultrasounds...
2016: International Journal of Dentistry
Martín Febles, Sofía Montalvão, Guillermo Díaz Crespín, Manuel Norte, José M Padrón, Päivi Tammela, José J Fernández, Antonio Hernández Daranas
A set of crown ethyl acyl derivatives based on 18-crown-6 moiety was synthesized and evaluated for biological activity. In vitro antiproliferative profiling demonstrated significant activities against HBL-100, HeLa, SW1573 and WiDr human cell lines. The most active compound exhibited GI50 values in the range of 3.7-5.6μM. Antimicrobial evaluation showed that three polyaromatic compounds were active against Staphylococcus aureus (MIC90 values from 8.3μM to 50μM), whereas a (decyloxy)benzene substitution exhibited moderate activity against Candida albicans (MIC90 values 36μM)...
September 29, 2016: Bioorganic & Medicinal Chemistry Letters
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