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Results 301 - 350 of 857
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Jensen Morten S?ndergaard - - 2010
OBJECTIVE: To study concordance rates of cryptorchidism (undescended testis) in pairs of boys with varying family structure, to evaluate the risk contribution from the intrauterine environment and genetic factors. DESIGN: Population based study of 1,024,500 Danish boys born from January 1, 1973 to December 31, 2004. Classic twin method and ...
Era Saho - - 2009
Perfluorooctane sulfonate (PFOS) is found ubiquitously in the environment, and is known to cause developmental toxicity, including cleft plate (CP). The aim of the present study was to elucidate the mechanism of CP associated with in utero exposure to PFOS in mice. We first examined whether the concentration of PFOS ...
Bjerre D - - 2009
In humans as well as in most farm animals, monozygotic twins have been described. Nevertheless, only a few reports of twinning in the pig have been published. It has been suggested that monozygotic twins are formed during the first 14 days of pregnancy. This monozygotic twin study includes the investigation ...
Plow Matthew A - - 2008
OBJECTIVES: To determine the impact of physical activity (PA) interventions and experience with PA on psychosocial constructs. METHODS: PA, self-efficacy, self-identity, social support, and expected PA frequency were measured pre and post intervention in 39 persons with multiple sclerosis. RESULTS: The MANOVA analysis indicated that self-efficacy and expectation decreased, whereas ...
Engström David - - 2008
The limited number of pixels and their quantized phase modulation values limit the positioning accuracy when a phase-only one dimensional spatial light modulator (SLM) is used for beam steering. Applying the straightforward recipe for finding the optimal setting of the SLM pixels, based on individually optimizing the field contribution from ...
Vitthala S - - 2009
BACKGROUND: It is estimated that there is at least a 2-fold rise in the incidence of monozygotic twinning after assisted reproductive technology compared with natural conception. This can result in adverse pregnancy outcomes. METHODS: We searched MEDLINE, EMBASE and SCISEARCH for studies that estimated the risk of monozygotic twinning and ...
Kuusisto H - - 2008
OBJECTIVES: To evaluate the changes in the multiple sclerosis (MS) concordance in twins, and the contribution of genetic and environmental factors to the aetiology of MS in Finland. BACKGROUND: Both genes and the environment contribute to the development of MS. A well-conducted twin study is an excellent means to assess ...
Peper Jiska S - - 2008
Puberty is a period in which cerebral white matter grows considerably, whereas gray matter decreases. The first endocrinological marker of puberty in both boys and girls is an increased secretion of luteinizing hormone (LH). Here we investigated the phenotypic association between LH, global and focal gray and white matter in ...
He Mingguang - - 2008
PURPOSE: To estimate the extent to which common genetic and environmental effects contribute to covariances among axial length, anterior chamber depth, and angle-opening distance. METHODS: The study participants were recruited from the Guangzhou Twin Registry. Anterior segment optical coherence tomography and custom software were used to quantify the angle opening ...
González Blanca S - - 2008
The purpose of this study was to up-date the records concerning oral clefts (OCs) encountered at the Child Hospital of the Maternal Infantile Institute of the State of México, and to examine the association of predisposing factors. A retrospective study of the medical records of patients generated over a 5-year ...
Gelfer Carole E - - 2008
Numerous studies have shown coarticulatory effects of vowel rounding on the spectra of sibilants. However, the extent to which the tongue contributes to coarticulation is not clear because most studies have used only fricatives whose constriction is formed with the tongue. This study examines the effects of vowel environment on ...
Captier Guillaume - - 2008
OBJECTIVE: To determine the anatomy of the soft and hard palate during fetal growth in order to improve its ultrasonographic prenatal visualization. DESIGN: Anatomic study in human formalin-fixed fetus. METHODS: The heads of 18 second and third trimester fetuses were studied in the median sagittal plan. Measurements of the soft ...
Schmidt C J - - 2008
We have recently proposed the hypothesis that inhibition of the cyclic nucleotide phosphodiesterase (PDE) 10A may represent a new pharmacological approach to the treatment of schizophrenia (Curr Opin Invest Drug 8:54-59, 2007). PDE10A is highly expressed in the medium spiny neurons of the mammalian striatum (Brain Res 985:113-126, 2003; J ...
Quené Hugo - - 2008
Speech tempo (articulation rate) varies both between and within speakers. The present study investigates several factors affecting tempo in a corpus of spoken Dutch, consisting of interviews with 160 high-school teachers. Speech tempo was observed for each phrase separately, and analyzed by means of multilevel modeling of the speaker's sex, ...
Sonnesen Liselotte - - 2008
Previous studies have described the relationships between cervical column morphology and craniofacial morphology. The aims of the present study were to describe cervical column morphology in 38 pairs of adult monozygotic (MZ) twins, and compare craniofacial morphology in twins with fusions with craniofacial morphology in twins without fusion. Visual assessment ...
Schoner Katharina - - 2008
Immunosuppressants are teratogenic in mice, rats, and rabbits and cause prenatal growth restriction in humans. As yet, there has been no proven teratogenicity in humans. We present a chromosomally normal fetus with severe acrofacial dysostosis and orofacial clefts. These were bilateral transverse and oblique clefts and defects of the midface. ...
Wong H S - - 2008
OBJECTIVES: To report a technique to view the fetal soft and hard palates, utilizing acquired routine 3-D volumes of the fetal face. METHOD: The axial, sagittal and coronal planes in acquired volumes of 3-D surface rendering of 5 normal fetal faces obtained at 19, 21, 23, 26 and 28 weeks, ...
Takalo Reijo - - 2008
The objective of our study was to determine the repeatability of successive measurements of exhaled nitric oxide (NO) with a portable device (NIOX MINO). We assembled a sample of 332 pairs of repeated NO measurements acquired in the same session. The mean of the two successive measurements varied from 4.0 ...
Muñoz C - - 2008
The objective of this study was to determine the effects of plane of nutrition during early and mid-pregnancy on the performance of mature ewes and their offspring. From day 0 to day 39 post mating (early pregnancy, EP), 82 multiparous ewes were fed to provide either 60% (low, L), 100% ...
Ozalp O - - 2008
We report a family with two consequent sibs with anophthalmia and cleft lip and palate. A 27 year old woman married to her first cousin was counseled for anophthalmia and cleft lip and palate detected during routine fetal ultrasonographic examination on the 23rd week of the pregnancy. Her obstetric history ...
Tarrant Janice J School of Optometry, 592 Minor Hall, University of California, Berkeley, CA 94720-2020, USA. - - 2008
To assess the effect of bifocal soft contact lenses on the accommodative errors (lags) of young adults. Recent studies suggest that bifocal soft contact lenses are an effective myopia control treatment although the underlying mechanism is not understood. Accommodation responses were measured for four target distances: 100, 50, 33 and ...
Margolis Robert H - - 2007
Hearing losses are frequently described by categories that characterize the configuration, severity, and site of lesion from a pure-tone audiogram. Although many category descriptors are in common use, there are no standard definitions of those terms, nor have the category definitions been validated against current clinical practice. The development and ...
Derom Catherine - - 2007
Abstract Twins are not a homogeneous group. According to zygosity and chorionicity essential differences exist. The lower sex proportion at birth is due to the monozygotic twins, especially the monoamnionic variety. X-inactivation patterns in monozygotic twin girls are totally symmetrical in monoamnionic pairs, almost symmetrical in monochorionic diamnionic pairs and ...
Vink Jacqueline M - - 2007
AIMS: To explore the association between cannabis and personality scores when genetic background and shared environment are controlled for. DESIGN: The co-twin control design. This design provides a powerful method for controlling for the effects of potentially confounding familial factors that may act to predispose subjects both to cannabis use ...
Horner Amy J - - 2008
Crayfish establish social dominance hierarchies through agonistic interactions, and these hierarchies are maintained through assessment of social status. Chemical signals influence several aspects of fighting behavior, but the specific chemosensory sensilla involved in detecting these signals in crayfish are unknown. The goal of our study was to examine the importance ...
Ferreira Andressa M C - - 2007
This research is a case study developed to evaluate and compare the classroom acoustics of two different buildings from the Federal University of Paran, built in different times: Building CP (from the 1960s) and building JB (built in 2000). Acoustical parameters have been measured in eight classrooms of the CP ...
Hur Yoon-Mi - - 2007
The present study examined the possible effects of chorionicity of twins on variation of prosocial behavior in the classical twin design. Mothers of 56 pairs of monochorionic monozygotic (MCMZ) twins, 34 pairs of dichorionic monozygotic (DCMZ) twins, and 316 pairs of dizygotic (DZ) twins rated their children's prosocial behavior. The ...
Costafreda Sergi G SG Brain Image Analysis Unit, Institute of Psychiatry, King's College London, UK. - - 2007
To estimate between-scanner functional MRI (fMRI) reproducibility in a multisite study. A total of five identical 1.5T MR systems were used to repeatedly scan five subjects while performing a finger tapping task. A two-way (scanners, subjects) random effects analysis of variance (ANOVA) was used to estimate between-scanner and between-subject variability ...
Schur Ellen E 1 Department of Medicine, University of Washington School of Medicine, Seattle,Washington, USA. - - 2007
Prolonged fatigue equal to or greater than 1 month duration and chronic fatigue equal to or greater than 6 months duration are both commonly seen in clinical practice, yet little is known about the etiology or epidemiology of either symptom. Chronic fatigue syndrome (CFS), while rarer, presents similar challenges in ...
Müller Sean - - 2008
Validity and reliability of a categorical tool for assessment of quality of bat-ball contact in cricket batting was examined in a natural setting. A batsman was filmed by twin synchronised cameras from front-on and side-on while facing deliveries from a leg spin bowler. The front-on camera allowed calculation of linear ...
van der Eijk Ellen A EA Department of Infectious Diseases, C5-P, Leiden University Medical Center, P.O. Box 9600, 2300 RC Leiden, The - - 2007
In his 1978 article on tuberculosis (TB) in twins, Comstock concluded that the 2.5-fold higher concordance rate for TB among monozygotic versus dizygotic twins in the Prophit survey of the 1950s implicated inherited susceptibility as a major risk factor for TB in humans. His analysis did not take into account ...
Chew Ming Tak - - 2007
OBJECTIVE: To evaluate the outcome of orthognathic surgery by objective cephalometric measurement of posttreatment soft-tissue profile and by subjective evaluation of profile esthetics by laypersons and clinicians. MATERIALS AND METHODS: The sample consisted of 30 Chinese patients who had completed combined orthodontic and orthognathic surgical treatment. The posttreatment cephalograms of ...
Huang Xuemei - - 2007
Parkinson's disease (PD) typically manifests with asymmetric motor symptom onset. Ventricular enlargement, a nonspecific measure of brain atrophy, has been associated with cognitive decline in PD, but not with motor symptom asymmetry. Asymmetrical ventricular enlargement on magnetic resonance images was explored in a monozygotic twin pair discordant for PD and ...
Stemkens D - - 2007
Klinefelter syndrome (KS; 47, XXY) is characterized by increased body height, hypergonadotrophic hypogonadism, and infertility. We describe a patient with a variant KS (47,X,i(Xq),Y) who has a twin brother with a 46,XY karyotype. Molecular studies showed that the twins were monozygotic. The presence of an isochromosome Xq in one of ...
Blanchard Ray - - 2007
A recent article by Langevin, Langevin, and Curnoe (2007) reported mixed results regarding the fraternal birth order effect, that is, the repeatedly observed finding that older brothers correlate with homosexuality in later-born males. Using a fraternal birth order index computed as older brothers minus younger brothers, Langevin et al. found ...
Atienza S G - - 2007
Tritordeums (Tritordeum Ascherson et Graebner) are the amphiploids derived from the crosses between Hordeum chilense and durum or bread wheats. Primary tritordeums are obtained using H. chilense as female parent and therefore they exhibit H. chilense cytoplasm. The effect of wheat cytoplasm on agronomic performance of tritordeums was investigated. We ...
Bessière Katherine - - 2007
In this study, we examine the identity exploration possibilities presented by online multiplayer games in which players use graphics tools and character-creation software to construct an avatar, or character. We predicted World of Warcraft players would create their main character more similar to their ideal self than the players themselves ...
Newcombe Rhiannon R Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, King's College London, - - 2007
It has been shown that lower birthweight is associated with lower IQ, but it remains unclear whether this association is causal or spurious. We examined the relationship between birthweight and IQ in two prospective longitudinal birth cohorts: a UK cohort of 1116 twin pairs (563 monozygotic [MZ] pairs), born in ...
Fan Xiaoduo - - 2007
Previous research has demonstrated that prenatal infections with bacterial or viral agents during pregnancy are associated with an increased risk of schizophrenia in the offspring during adulthood. Furthermore, there has been evidence linking obstetric complications to schizophrenia. In parallel, there is a separate body of evidence relating subclinical chronic inflammation ...
Jamniczky Heather A - - 2007
The turtle cranial circulation has been employed as an important source of phylogenetic information, but recent conflicting hypotheses of relationship within Testudinata suggest reevaluation of the utility of characters drawn from this complex. As a component of a comprehensive character analysis, the osteological correlates of the nonmarine cryptodiran turtle carotid ...
Zhang Pei-ai - - 2007
Evolutionary graphs (EGs), in which evolutionary dynamic is arranged on a graph, were initially proposed by Lieberman et al. [Lieberman, E., Hauert, C., Nowak, M.A., 2005. Evolutionary dynamics on graphs. Nature 433, 312-316] in the biological field and many biological phenomena are successfully explained. EGs on two levels (or bi-level ...
Kremen William S WS Department of Psychiatry, Center for Behavioral Genomics, University of California, San Diego, La Jolla, California 92093-0738, USA. - - 2007
The Wisconsin Card Sorting Test (WCST) has been utilized extensively as a measure of executive function and working memory and as a neurocognitive probe of prefrontal brain function. In studies of psychiatric illness--particularly schizophrenia--it has also been considered to be a cognitive vulnerability marker or endophenotype. Heritability is an important ...
Torgersen Anne Mari - - 2007
The hypothesis that attachment in adults is influenced by genetic factors was investigated. The within-pair differences in attachment representation in same-sex monozygotic and dizygotic twins were compared using the Adult Attachment Interview (AAI). The results showed a clear tendency toward monozygotic twins (n = 28) being more concordant than dizygotic ...
Fellman Johan - - 2007
It is common opinion that the stillbirth rate is higher among monozygotic (MZ) than among dizygotic (DZ) twins. This is supported by the fact that stillbirth rates are higher among same-sexed than among opposite-sexed twins, and the relatively high stillbirth rates among twins of young mothers. In this study we ...
Grynberg M - - 2007
We report the case of monozygotic (MZ) male twin fetuses with different Down syndrome (DS) phenotypes. Prenatal fetal sonography showed a bichorial biamniotic pregnancy with increased nuchal translucency in twin A and a cervical cystic hygroma and heart defect in twin B. Cytogenetic analysis performed after double amniocentesis showed free ...
Kaplan Robert - - 2007
South African historian Charles van Onselen's discovery of the identity of Jack the Ripper is described. The author was consulted by van Onselen during the writing of the latter's book, "The Fox and the Flies: Joe Silver, Racketeer and Psychopath", which suggested the identity of Jack the Ripper and was ...
Jirapongphan Siricharn S - - 2007
A mechanism has been proposed for the separation of valinol enantiomers using a chiral-modified zeolite HY (i.e., zeolite HY containing (+)-(1R;2R)-hydrobenzoin) Molecular modeling of chiral-modified zeolite HY employed in enantioselective separation. Jirapongphan SS, Warzywoda J, Budil DE, Sacco A Jr. Chirality 2007; in press, which accurately predicted the experimentally measured ...
Rouw Romke - - 2007
Diffusion tensor imaging allowed us to validate for the first time the hypothesis that hyperconnectivity causes the added sensations in synesthesia. Grapheme-color synesthetes (n = 18), who experience specific colors with particular letters or numbers (for example, 'R is sky blue'), showed greater anisotropic diffusion compared with matched controls. Greater ...
Mossey Peter A - - 2007
OBJECTIVE: To investigate the association between pregnancy planning and orofacial clefts in the United Kingdom. DESIGN: Case-control study. SETTING: Scotland and the Manchester and Merseyside regions of England. PARTICIPANTS: One hundred and ninety-one children born with nonsyndromic orofacial cleft, 1997 to 2000, and 247 controls. MAIN OUTCOME MEASURE: Cleft lip ...
Tansella Carole - - 2007
AIMS: The article describes the evolution of Outsider Art from the birth of its term in 1972 to the present and its emancipation from the margin to the markets, still in progress. RESULTS: Tracing the evolution of Outsider Art evidences a stark contradiction. On one hand the art world of ...
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