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https://www.readbyqxmd.com/read/29055174/maternal-outcomes-in-first-and-second-trimester-termination-of-pregnancy-which-are-the-risk-factors
#1
Giulia Garofalo, Anna Garofalo, Olga Sochirca, Maria Grazia Alemanno, Eleonora Pilloni, Marilisa Biolcati, Elisabetta Muccinelli, Elsa Viora, Tullia Todros
AIMS: To evaluate maternal complications of first trimester and second trimester termination of pregnancy (TOP) performed after first or second trimester positive prenatal diagnosis (PD). RESULTS: We performed a retrospective study from January 2007 to December 2011, on 844 patients, who underwent a TOP after positive amniocentesis or chorionic villus sampling (CVS) for foetal aneuploidies, performed for maternal age ≥35 years of age, positive prenatal screening (PS) or for genetic reasons...
October 21, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/29055131/case-report-of-staphylococcus-epidermidis-maternal-sepsis-and-chorioamnionitis-following-fetoscopy
#2
Gabriel Levin, Roy Zigron
A patient aged 28 years (gravida 5 para 3) who was at 21 weeks of a monochorionic diamniotic pregnancy, underwent fetoscopic laser ablation of placental blood vessels owing to stage-3 twin-to-twin transfusion syndrome (Figure 1). Ultrasonography on post-operative day 1 demonstrated marked improvement of both embryo urinary bladder filling and Doppler blood flow measurements. This article is protected by copyright. All rights reserved.
October 21, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/29054888/lung-cancer-genetic-predisposition-and-smoking-the-nordic-twin-study-of-cancer
#3
Jacob Hjelmborg, Tellervo Korhonen, Klaus Holst, Axel Skytthe, Eero Pukkala, Julia Kutschke, Jennifer R Harris, Lorelei A Mucci, Kaare Christensen, Kamila Czene, Hans-Olov Adami, Thomas Scheike, Jaakko Kaprio
BACKGROUND: We aimed to disentangle genetic and environmental causes in lung cancer while considering smoking status. METHODS: Four Nordic twin cohorts (43 512 monozygotic (MZ) and 71 895 same sex dizygotic (DZ) twin individuals) had smoking data before cancer diagnosis. We used time-to-event analyses accounting for censoring and competing risk of death to estimate incidence, concordance risk and heritability of liability to develop lung cancer by smoking status...
November 2017: Thorax
https://www.readbyqxmd.com/read/29053637/progress-in-genetic-studies-of-tourette-s-syndrome
#4
REVIEW
Yanjie Qi, Yi Zheng, Zhanjiang Li, Lan Xiong
Tourette's Syndrome (TS) is a complex disorder characterized by repetitive, sudden, and involuntary movements or vocalizations, called tics. Tics usually appear in childhood, and their severity varies over time. In addition to frequent tics, people with TS are at risk for associated problems including attention deficit hyperactivity disorder (ADHD), obsessive-compulsive disorder (OCD), anxiety, depression, and problems with sleep. TS occurs in most populations and ethnic groups worldwide, and it is more common in males than in females...
October 20, 2017: Brain Sciences
https://www.readbyqxmd.com/read/29052939/qtl-mapping-and-analysis-of-heritable-variation-in-affiliative-social-behavior-and-related-traits
#5
Allison T Knoll, Kevin Jiang, Pat Levitt
Humans exhibit broad heterogeneity in affiliative social behavior. Twin and family studies demonstrate that individual differences in core dimensions of social behavior are heritable, yet there are knowledge gaps in understanding the underlying genetic and neurobiological mechanisms. Animal genetic reference panels (GRPs) provide a tractable strategy for examining the behavioral and genetic architecture of complex traits. Here, using males from 50 mouse strains from the BXD GRP, four domains of affiliative social behavior-social approach, social recognition, direct social interaction (partner sniffing), and vocal communication-were examined in two widely used behavioral tasks-the 3-chamber and direct social interaction tasks...
October 20, 2017: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/29052319/from-pre-ovulatory-follicle-palpation-to-the-challenge-of-twin-pregnancies-clinical-reflections-following-one-million-gynaecological-examinations-in-dairy-cows
#6
REVIEW
F López-Gatius, R H F Hunter
Based on experimental studies and extensive field-scale experience, this review offers new proposals for: (i) elevating the success of modern insemination procedures, (ii) emphasizing features of a pre-ovulatory follicle in the context of optimum insemination timing, (iii) overcoming heat stress and its consequences using physiological processes or endocrine protocols, (iv) establishing a viable pregnancy or early pregnancy loss and (v) the challenge of twin pregnancies. In conclusion, the fertility of high-yielding dairy cows can be further improved...
October 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/29051577/de-novo-mutations-of-tuba3d-are-associated-with-keratoconus
#7
Xiao-Dan Hao, Peng Chen, Yang-Yang Zhang, Su-Xia Li, Wei-Yun Shi, Hua Gao
Keratoconus (KC) is a common degenerative corneal disease, and heredity plays a key role in its development. Although few genes are known to cause KC, a large proportion of disease-causing genes remain to be revealed. Here, we report the identification of TUBA3D as a novel gene linked to KC. Using whole-exome sequencing of a twins pedigree, a novel de novo mutation (c.31 C > T, p.Gln11stop) in TUBA3D gene was identified. A screening performed in 200 additional unrelated patients with KC revealed another two mutations (c...
October 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29050592/eco-friendly-films-prepared-from-plantain-flour-pcl-blends-under-reactive-extrusion-conditions-using-zirconium-octanoate-as-a-catalyst
#8
Tomy J Gutiérrez, Vera A Alvarez
Plantain flour (Musa ssp., group AAB, sub-group clone Harton)/poly(ε-caprolactone) (PCL) blends, containing glycerol as a plasticizer, were prepared by reactive extrusion (REx) in a twin-screw extruder using zirconium octanoate (Zr(Oct)4) as a catalyst, followed by thermo-compression molding for film development. The films were then characterized in terms of their: infrared (FTIR) spectra, water solubility, thermogravimetric (TGA) curves, differential scanning calorimetry (DSC) thermograms, and X-ray diffraction (XDR) diffractograms, as well as their microstructural, mechanical and antimicrobial properties in order to (1) compare the effects of PCLs with two different molecular weights (Mw) on the characteristics of the plantain flour/PCL blends, and (2) determine whether using Zr(Oct)4 in the production of active composite polymer materials improves their properties...
December 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29048406/disparity-in-fetal-growth-between-twin-and-singleton-gestation-the-role-of-adipokines
#9
R Zemet, Y Shulman, R Hemi, B Brandt, E Sivan, H Kanety, S Mazaki-Tovi
OBJECTIVE: Twin pregnancies are characterized by unique pattern of attenuated fetal weight gain during late gestation compared with singleton gestation. The mechanism(s) responsible for regulating twin growth has not yet elucidated. Leptin and adiponectin are two adipocytokines implicated in metabolism and energy balance of fetuses, newborns and adults. Moreover, these hormones have been suggested to play a role in fetal growth. The objective of the study was to determine cord blood adiponectin and leptin in twins and singletons, with and without growth impairment...
October 19, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29048344/influence-of-ultrasonic-surface-rolling-on-microstructure-and-wear-behavior-of-selective-laser-melted-ti-6al-4v-alloy
#10
Zhen Wang, Zhiyu Xiao, Chuanshou Huang, Liping Wen, Weiwen Zhang
The present article studied the effect of ultrasonic surface rolling process (USRP) on the microstructure and wear behavior of a selective laser melted Ti-6Al-4V alloy. Surface characteristics were investigated using optical microscope, nano-indentation, scanning electron microscope, transmission electron microscope and laser scanning confocal microscope. Results indicated that the thickness of pore-free surfaces increased to 100~200 μm with the increasing ultrasonic surface rolling numbers. Severe work hardening occurred in the densified layer, resulting in the formation of refined grains, dislocation walls and deformation twins...
October 19, 2017: Materials
https://www.readbyqxmd.com/read/29048262/genetic-and-environmental-influences-on-developmental-milestones-and-movement-results-from-the-gemini-cohort-study
#11
Lee Smith, Cornelia H M van Jaarsveld, Clare H Llewellyn, Alison Fildes, Guillermo Felipe López Sánchez, Jane Wardle, Abigail Fisher
PURPOSE: Variability in the timing of infant developmental milestones is poorly understood. We used a twin analysis to estimate genetic and environmental influences on motor development and activity levels in infancy. METHOD: Data were from the Gemini Study, a twin birth cohort of 2,402 families with twins born in the United Kingdom in 2007. Parents reported motor activity level for each of the twins at age 3 months using the Revised Infant Behavior Rating Scale and reported the ages at which they first sat unsupported, crawled, and walked unaided...
October 19, 2017: Research Quarterly for Exercise and Sport
https://www.readbyqxmd.com/read/29047479/light-scattering-from-sessile-water-drops-and-raindrop-shaped-glass-beads-as-a-validation-tool-for-rainbow-simulations
#12
Alexander Haußmann
The shape deviation of falling raindrops from exact spheres is known to affect the appearance of natural rainbows, e.g., by enhancing the visibility of supernumerary arcs around the top or by creating branching effects known as "twinned rainbows." To check the accuracy of numerical optical models for rainbow scattering from such nonspherical drops, two simple and low-cost experiments are presented in this paper: (1) sessile, i.e., sitting, drops on ultrahydrophobic surfaces, and (2) glass beads in the shape of falling raindrops...
July 1, 2017: Applied Optics
https://www.readbyqxmd.com/read/29047168/changes-in-sleep-quality-with-age-a-36-year-follow-up-study-of-finnish-working-aged-adults
#13
Christer Hublin, Mikko Lehtovirta, Markku Partinen, Markku Koskenvuo, Jaakko Kaprio
Long-term follow-up data on changes in sleep quality among middle-aged adults is scarce. We assessed sleep quality in a population-based cohort (n = 4847) of twins born between 1945 and 1957 during a follow-up of 36 years, with four measurement points in 1975, 1981, 1990 and 2011. Sleep quality was categorized as sleeping well, fairly well, fairly poorly or poorly. The mean age at the beginning of follow-up was 24.0, and at the end was 60.3 years. Of all the adults, 71.1% slept well or fairly well at each time-point throughout the follow-up and 0...
October 19, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29046814/emergence-and-loss-of-spliceosomal-twin-introns
#14
Michel Flipphi, Norbert Ág, Levente Karaffa, Napsugár Kavalecz, Gustavo Cerqueira, Claudio Scazzocchio, Erzsébet Fekete
BACKGROUND: In the primary transcript of nuclear genes, coding sequences-exons-usually alternate with non-coding sequences-introns. In the evolution of spliceosomal intron-exon structure, extant intron positions can be abandoned and new intron positions can be occupied. Spliceosomal twin introns ("stwintrons") are unconventional intervening sequences where a standard "internal" intron interrupts a canonical splicing motif of a second, "external" intron. The availability of genome sequences of more than a thousand species of fungi provides a unique opportunity to study spliceosomal intron evolution throughout a whole kingdom by means of molecular phylogenetics...
2017: Fungal Biology and Biotechnology
https://www.readbyqxmd.com/read/29046073/influence-of-farewell-rituals-and-psychological-vulnerability-on-grief-following-perinatal-loss-in-monochorionic-twin-pregnancy
#15
Mònica Druguet, Laura Nuño, Carlota Rodó, Silvia Arévalo, Elena Carreras Moratonas, Juana Gómez-Benito
AIM: To analyze whether the absence of farewell rituals and previous psychological vulnerability are associated with the intensity of grief following perinatal loss in monochorionic twin pregnancy. METHOD: The sample comprised 28 women who experienced perinatal loss following fetal surgery. Sociodemographic and clinical data and information about farewell rituals were collected through interview. The women also completed a questionnaire about perinatal grief. RESULTS: A history of psychological and/or psychopharmacological treatment was associated with more intense grief following perinatal loss...
October 18, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29045850/comparison-of-conventional-2d-ultrasound-to-mr-imaging-for-prenatal-estimation-of-birth-weight-in-twin-pregnancy
#16
Caroline Kadji, Elisa Bevilacqua, Ivan Hurtado, Andrew Carlin, Mieke M Cannie, Jacques C Jani
BACKGROUND: During prenatal follow-up of twin pregnancies, accurate identification of birthweight and birthweight discordance is important in order to identify the high risk group and plan perinatal care. Unfortunately prenatal evaluation of birthweight discordance by 2-dimensional ultrasound (US) has been far from optimal. OBJECTIVE: To prospectively compare estimates of fetal weight based on 2-dimensional US (US-EFW) and MR imaging (MR-EFW) to actual birth weight in women carrying twin pregnancies...
October 15, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29045557/the-suprapubic-dermoadipose-flap-for-aesthetic-reshaping-of-the-postpregnancy-abdomen
#17
Horacio F Mayer, Hugo D Loustau
Background: Postpregnancy full-length diastasis of the recti abdominis muscles is a common condition occasionally associated with atrophy of the subcutaneous fat located at the midline above and below the umbilicus. Objectives: The authors report a preliminary clinical experience with the suprapubic flap to prevent the late postoperative contour deformities of the postpregnancy abdomen. Methods: Between January 2005 and January 2015, all female patients undergoing abdominoplasty with the suprapubic flap were included in the present study...
October 14, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29043999/study-of-global-dna-methylation-in-monozygotic-twins-with-cerebral-palsy
#18
Yuxiao Yuan
The objective of this paper is to study the global DNA Methylation in monozygotic (MZ) twins with cerebral palsy. Two pairs of twins (a cerebral palsy children, a normal child) admitted to the First Affiliated Hospital of Zhengzhou University were selected as subjects. The phenol-chloroform method was used to extract DNA from venous blood and micro satellite DNA genotyping technique was used to identify the eggs of the twins. DNA methylation fragments were enriched by MBD affinity column chromatography, followed by Solexa sequencing and bioinformatics analysis...
July 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29043810/structure-and-thermodynamics-of-metal-clusters-on-atomically-smooth-substrates
#19
Marco Eckhoff, Dmitri Schebarchov, David J Wales
We analyse the structure of model Ni$_{N}$ and Cu$_{N}$ clusters ($N=55$, $147$) supported on a variety of atomically smooth van der Waals surfaces. The global minima are mapped in the space of two parameters: (i) the laterally averaged surface stickiness, $\gamma$, which controls the macroscopic wetting angle; and (ii) the surface microstructure, which produces more subtle but important templating via epitaxial stresses. We find that adjusting the substrate lattice (even at constant $gamma$) can favour different crystal plane orientations in the cluster, stabilise hexagonal close-packed order, or induce various defects, such as stacking faults, twin boundaries, and fivefold disclinations...
October 18, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/29043520/an-extended-twin-pedigree-study-of-neuroticism-in-the-netherlands-twin-register
#20
Dorret I Boomsma, Quinta Helmer, Harold A Nieuwboer, Jouke Jan Hottenga, Marleen H de Moor, Stéphanie M van den Berg, Gareth E Davies, Jacqueline M Vink, Maarten J Schouten, Conor V Dolan, Gonneke Willemsen, Meike Bartels, Toos C E M van Beijsterveldt, Lannie Ligthart, Eco J de Geus
For the participants in the Netherlands Twin Register (NTR) we constructed the extended pedigrees which specify all relations among nuclear and larger twin families in the register. A total of 253,015 subjects from 58,645 families were linked to each other, to the degree that we had information on the relations among participants. We describe the algorithm that was applied to construct the pedigrees. For > 30,000 adolescent and adult NTR participants data were available on harmonized neuroticism scores...
October 17, 2017: Behavior Genetics
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