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https://www.readbyqxmd.com/read/28449251/vascular-twin-nevi
#1
Senay Agirgol, Hatice Nur Ozturk, Tugba Ozkok Akbulut, Ceyda Gunduzoglu, Leyli Kadriye Koc, Zafer Turkoglu
Vascular twin nevi (VTN) are characterized by the simultaneous dermatological manifestatiton of a telangiectatic naevus close to a nevus anemicus. Nevus anemicus (NA) is a vascular anomaly characterized by localized pale patches with normal melanine and melanocyte level. According to twin spotting phenomenon crossing-over in heterozygous somatic-cells during mitosis results in two different offspring homozygous cells. Consequent to this mechanism, two different vascular anomalies may occur at the same region...
April 27, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28448801/the-placental-factor-in-spontaneous-preterm-birth-in-twin-vs-singleton-pregnancies
#2
Eran Weiner, Ann Dekalo, Ohad Feldstein, Elad Barber, Letizia Schreiber, Jacob Bar, Michal Kovo
OBJECTIVE: The association between infection and inflammatory response in singleton preterm birth (PTB) is well established, yet, less is known about PTB in twins. We aimed to compare the placental component and pregnancy outcome in pregnancies complicated with PTB of singletons vs. twin deliveries. We hypothesized that due to different underlying mechanisms, placental inflammatory lesions will be more prevalent in placentas derived from singleton pregnancies than twins. STUDY DESIGN: Labor characteristics, neonatal outcome and placental histopathology reports of spontaneous PTB at 24-33(6)/7 weeks, from 1/2008-12/2015, were reviewed...
April 22, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28448561/persistence-and-innovation-effects-in-genetic-and-environmental-factors-in-negative-emotionality-during-infancy-a-twin-study
#3
Lyndall Schumann, Michel Boivin, Stéphane Paquin, Eric Lacourse, Mara Brendgen, Frank Vitaro, Ginette Dionne, Richard E Tremblay, Linda Booij
BACKGROUND: Difficult temperament in infancy is a risk factor for forms of later internalizing and externalizing psychopathology, including depression and anxiety. A better understanding of the roots of difficult temperament requires assessment of its early development with a genetically informative design. The goal of this study was to estimate genetic and environmental contributions to individual differences in infant negative emotionality, their persistence over time and their influences on stability between 5 and 18 months of age...
2017: PloS One
https://www.readbyqxmd.com/read/28448062/association-between-small-for-gestational-age-and-neurocognitive-impairment-at-two-years-of-corrected-age-among-infants-born-at-preterm-gestational-ages-a-cohort-study
#4
A I Girsen, S C Do, Y Y El-Sayed, S R Hintz, Y J Blumenfeld
OBJECTIVE: To investigate the association between small-for-gestational age (SGA) and neurocognitive impairment at 2 years of corrected age among infants born at preterm gestational ages. STUDY DESIGN: A secondary analysis of a prospectively conducted NICHD/Maternal-Fetal Medicine Units BEAM trial. Non-anomalous pregnancies delivered before 37 weeks of gestation were included in the analysis. Neurocognitive outcomes at 2 years of corrected age were compared between infants who were SGA (<10% for gestational age) and those appropriately grown (AGA)...
April 27, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28446183/effect-of-different-artificial-shrinkage-methods-when-applied-before-blastocyst-vitrification-on-perinatal-outcomes
#5
Caizhu Wang, Guixue Feng, Bo Zhang, Hong Zhou, Jinhui Shu, Ruoyun Lin, Huanhua Chen, Zhulian Wu
BACKGROUND: In recent years, single blastocyst transfer combined with vitrification has been applied widely, which can maximize the cumulative pregnancy rate in per oocyte retrieval cycles and minimize the multiple pregnancy rate. Thus, the guarantee for these is the effectiveness of vitrified blastocyst. Studies has shown that AS of the blastocoel cavity prior to vitrification can reduce injuries, increase the thawed blastocyst survival rate and implantation rate. Several AS methods have been established...
April 26, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28444780/fetal-brain-injury-in-complicated-monochorionic-pregnancies-diagnostic-yield-of-prenatal-mri-following-surveillance-ultrasound-and-influence-on-prognostic-counselling
#6
Alice Robinson, Mark Teoh, Andrew Edwards, Michael Fahey, Stacy Goergen
OBJECTIVE: To determine the additional diagnostic information provided by prenatal (fetal) magnetic resonance imaging (pMRI) following tertiary ultrasound (US) for fetal cranial abnormalities in complicated monochorionic gestations (cMCGs) METHODS: Women with cMCGs complicated by twin - twin transfusion syndrome (TTTS), co-twin demise (CD), selective intrauterine growth restriction (sIUGR), and / or twin anemia - polycythemia sequence (TAPS) who were referred for pMRI after tertiary US were included...
April 26, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28444191/risks-of-miscarriage-or-preterm-delivery-in-trichorionic-and-dichorionic-triplet-pregnancies-with-embryo-reduction-versus-expectant-management-a-systematic-review-and-meta-analysis
#7
C Anthoulakis, T Dagklis, A Mamopoulos, A Athanasiadis
STUDY QUESTION: Is pregnancy outcome in triplet pregnancies improved with embryo reduction (ER) to twins compared to expectant management? SUMMARY ANSWER: In trichorionic triplet pregnancies, ER to twins reduces the risk of preterm birth (<34 weeks) without significantly increasing the risk of miscarriage (<24 weeks), whereas in dichorionic triplet pregnancies, the results are inconclusive. WHAT IS KNOWN ALREADY: Triplet pregnancies are associated with a high risk of miscarriage and preterm birth...
April 21, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28443527/an-investigation-into-the-effects-of-maternal-supplementation-with-excess-iodine-on-the-mechanisms-and-impacts-of-reduced-igg-absorption-in-the-lamb-postpartum
#8
F M McGovern, T Sweeney, M T Ryan, S Lott, F P Campion, T M Boland
An experiment was conducted to determine: (1) the effect of excess maternal I supplementation on the thyroid hormone status of the ewe and her progeny; (2) potential mechanisms underpinning the failure of passive transfer associated with excess I and (3) the growing lambs' response to natural gastrointestinal infection. Twin-bearing ewes received one of two treatments (n 32/treatment group): basal diet (C) or C plus 26·6 mg of iodine/ewe per d (I), supplied as calcium iodate. Ewes were individually fed from day 119 of gestation to parturition...
April 26, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28442525/korean-monozygotic-twins-with-lethal-acantholytic-epidermolysis-bullosa-caused-by-two-novel-dsp-mutations
#9
Se Jin Kim, Jung Min Ko, Seung Han Shin, Ee-Kyung Kim, Han-Suk Kim, Kyung-A Lee
Desmoplakin is an essential cytoplasmic plaque protein in desmosomes, and it is the major linker between intercellular junctions in the skin and heart. The role of desmoplakin is anchoring transmembrane cadherins to cytoplasmic intermediate filaments. The desmoplakin gene (DSP) is located on chromosome 6, and six common allelic disorders are associated with this gene, including autosomal-dominant or -recessive disorders that affect the skin, heart, hair, and nails. In particular, lethal acantholytic epidermolysis bullosa (LAEB) is an autosomal recessively inherited and extremely rare genetic skin disorder, and only three molecularly confirmed families with LAEB have been reported previously...
March 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/28442372/long-term-release-and-stability-of-pharmaceutical-proteins-delivered-from-solid-lipid-implants
#10
Moritz Vollrath, Julia Engert, Gerhard Winter
Solid lipid implants (SLIs) prepared by twin-screw (tsc) extrusion represent a promising technology platform for the sustained release of pharmaceutical proteins. In this work, we report on two aspects, long-term release and stability of released protein. First, SLIs were produced by tsc-extrusion containing the low melting triglyceride H12 and the high melting triglyceride Dynasan D118. Two different proteins available in a freeze-dried matrix containing hydroxypropyl-β-cyclodextrine (HP-β-CD) were incorporated into the lipid matrix: a monoclonal antibody (mAb) from the IgG1 class and the fab-fragment Ranibizumab (Lucentis(®))...
April 22, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28441900/placental-nfe2l2-is-discordantly-activated-in-monochorionic-twins-with-selective-intrauterine-growth-restriction-and-possibly-regulated-by-hypoxia
#11
Jing Wu, Zhiming He, Yu Gao, Guanglan Zhang, Xuan Huang, Qun Fang
INTRODUCTION: Nuclear factor, erythroid 2 like 2 (NFE2L2) is an important transcription factor that protects cells from oxidative stress (OS). NFE2L2 deficiency in placentas is associated with pregnancy complications. We have demonstrated that elevated OS existed in placental shares of the smaller fetus in selective intrauterine growth restriction (sIUGR); however, the role of NFE2L2 in the development of sIUGR remains unknown. In this study, we examined the levels of NFE2L2 and heme oxygenase 1 (HMOX1), a major antioxidant regulated by NFE2L2, in sIUGR placentas...
April 25, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28441332/pregnant-sheep-in-a-farm-environment-did-not-develop-anaemia
#12
Gabrielle C Musk, Amanda James, Matthew W Kemp, Sara Ritchie, Andrew Ritchie, Michael Laurence
The aim of this study was to document the haematological profile of pregnant ewes throughout gestation. Sheep were divided into three groups (n = 8 per group): non-pregnant, singleton, or twin pregnancy. Blood samples were collected every 14 days from day 55 of gestation for haemoglobin concentration; packed cell volume; total protein; and albumin concentration. On days 55 and 125 of gestation blood was collected for trace element estimation: soluble copper and zinc; glutathione peroxidase (GSHPx); and methylmalonic acid (MMA)...
April 25, 2017: Animals: An Open Access Journal From MDPI
https://www.readbyqxmd.com/read/28440405/copy-number-variation-analysis-in-familial-nonsyndromic-congenital-anomalies-of-the-kidney-and-urinary-tract-evidence-for-the-causative-role-of-a-transposable-element-associated-genomic-rearrangement
#13
Ekaterini Siomou, Artemis G Mitsioni, Vasileios Giapros, Ioanna Bouba, Dimitrios Noutsopoulos, Ioannis Georgiou
Most congenital anomalies of the kidney and urinary tract (CAKUT) are sporadic, but familial occurrence has been described, suggesting a genetic contribution. Copy‑number variations (CNVs) were detected in patients with CAKUT to identify possible novel genomic regions associated with CAKUT. CNVs were investigated in 7 children with CAKUT from three unrelated families using array comparative genomic hybridization: female monozygotic twins with bilateral duplex collecting system/vesicoureteral reflux (VUR)/unilateral renal hypodyspasia (URHD); two male siblings with VUR/URHD; 3 male second cousins, one with bilateral VUR/URHD, one with bilateral VUR and one with ureterovesical junction obstruction (UVJO)...
April 12, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28440029/treatment-effects-of-reverse-twin-block-and-reverse-pull-face-mask-on-craniofacial-morphology-in-early-and-late-mixed-dentition-children
#14
N Fareen, M K Alam, M F Khamis, N Mokhtar
OBJECTIVE: Reverse Twin-Block (RTB) and Reverse Pull Face Mask (RPFM) appliances are used to correct Class III malocclusion in growing patients. Aim of this retrospective study was to compare and analyse craniofacial changes produced by RTB and RPFM in the early and late mixed dentition in Malay children with Class III malocclusion. METHODS: Data consisted of pre- and post-treatment lateral cephalograms of 95 children, 49 patients with RTB and 46 patients with RPFM, divided into an early (8-9 year) and late (10-11 year) group...
April 25, 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28439884/the-home-environment-shapes-emotional-eating
#15
Moritz Herle, Alison Fildes, Frühling Rijsdijk, Silje Steinsbekk, Clare Llewellyn
Emotional overeating (EOE) is the tendency to eat more in response to negative emotions; its etiology in early life is unknown. We established the relative genetic and environmental influences on EOE in toddlerhood and early childhood. Data were from Gemini, a population-based cohort of 2,402 British twins born in 2007. EOE was measured using the "emotional overeating" scale of the Child Eating Behavior Questionnaire (CEBQ) at 16 months and 5 years. A longitudinal quantitative genetic model established that genetic influences on EOE were minimal; on the other hand, shared environmental influences explained most of the variance...
April 25, 2017: Child Development
https://www.readbyqxmd.com/read/28439421/factors-associated-with-cesarean-delivery-rates-a-single-institution-experience
#16
Spencer McClelland, Naomi Gorfinkle, Alan A Arslan, Maria Teresa Benedetto-Anzai, Teresa Cheon, Yuzuru Anzai
BACKGROUND: The aim of this study was to identify factors associated with variability in Cesarean delivery (CD) rates amongst providers at a single institution. METHODS: A retrospective cohort analysis was carried out on all births at NYU Langone Medical Center from 2005-2013. Data was collected for subjects and linked to diagnosis codes for singleton and twin deliveries. Descriptive characteristics were generated for all deliveries, and inferential analysis was performed including multiple covariates for singleton deliveries in the 2010-2013 cohort, including both univariate and multivariate regression analyses to identify factors associated with higher CD rates...
2017: Maternal Health, Neonatology and Perinatology
https://www.readbyqxmd.com/read/28439093/gene-expression-profile-of-subcutaneous-adipose-tissue-in-bmi-discordant-monozygotic-twin-pairs-unravels-molecular-and-clinical-changes-associated-with-sub-types-of-obesity
#17
M Muniandy, S Heinonen, H Yki-Järvinen, A Hakkarainen, J Lundbom, N Lundbom, J Kaprio, A Rissanen, M Ollikainen, K H Pietiläinen
BACKGROUND: Subcutaneous adipose tissue (SAT) undergoes major changes in obesity, but little is known about the whole-genome scale patterns of these changes or about their variation between different obesity subgroups. We sought to compare how transcriptomics profiles in SAT differ between monozygotic (MZ) co-twins who are discordant for body mass index (BMI), whether the profiles vary between twin pairs and whether the variation can be linked to clinical characteristics. METHODS: We analyzed the transcriptomics (Affymetrix U133 Plus 2...
April 25, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28438010/study-on-crystallographic-orientation-effect-on-surface-generation-of-aluminum-in-nano-cutting
#18
Feifei Xu, Fengzhou Fang, Yuanqing Zhu, Xiaodong Zhang
The material characteristics such as size effect are one of the most important factors that could not be neglected in cutting the material at nanoscale. The effects of anisotropic nature of single crystal materials in nano-cutting are investigated employing the molecular dynamics simulation. Results show that the size effect of the plastic deformation is based on different plastic carriers, such as the twin, stacking faults, and dislocations. The minimum uncut chip thickness is dependent on cutting direction, where even a negative value is obtained when the cutting direction is {110}<001>...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28437461/comparison-of-risk-factors-and-outcomes-of-gestational-hypertension-and-pre-eclampsia
#19
Minxue Shen, Graeme N Smith, Marc Rodger, Ruth Rennicks White, Mark C Walker, Shi Wu Wen
BACKGROUND: It remains an enigma whether gestational hypertension (GH) and pre-eclampsia (PE) are distinct entities or different spectrum of the same disease. We aimed to compare the risk factors and outcomes between GH and PE. METHOD: A total of 7,633 pregnant women recruited between 12 and 20 weeks of gestation in the Ottawa and Kingston Birth Cohort from 2002 to 2009 were included in the analysis. Cox proportional hazards model was used to identify and compare the risk factors for GH and PE by treating gestational age at delivery as the survival time...
2017: PloS One
https://www.readbyqxmd.com/read/28437083/dual-plug-and-display-synthetic-assembly-using-orthogonal-reactive-proteins-for-twin-antigen-immunization
#20
Karl Brune, Can Buldun, Yuanyuan Li, Iona Taylor, Florian Brod, Sumi Biswas, Mark Howarth
Engineering modular platforms to control biomolecular architecture can advance both the understanding and manipulation of biological systems. Icosahedral particles uniformly displaying single antigens stimulate potent immune activation and have been successful in various licensed vaccines. However, it remains challenging to display multiple antigens on a single particle, to induce broader immunity protective across strains or even against distinct diseases. Here we design a dually-addressable synthetic nanoparticle, by engineering the multimerizing coiled-coil IMX313 and two orthogonally-reactive split proteins...
April 24, 2017: Bioconjugate Chemistry
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