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Results 401 - 450 of 622
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Peterka M - - 1994
It has been proposed that the hyperthermia in pregnant women may be associated with birth defects in their offsprings. We analysed the retrospective interview data on probable febrile illness during critical period of orofacial clefts development in 992 mothers of boys and girls with three types of orofacial clefts--cleft lip, ...
Mumford C J - - 1994
During a 27-month recruitment period, we identified 146 individuals with multiple sclerosis (MS) who have a twin. A single clinician interviewed and examined 105 pairs of twins, and we confirmed zygosity using minisatellite probes. Including two suspected cases, 11 of 44 (25%) monozygotic twin pairs were concordant compared with two ...
Plug C - - 1994
It is argued that the failure to explain the celestial illusion results from conceptual confusion about perceived size and from disregard of the observational evidence relating to the natural moon illusion. The evidence shows that the illusion consists of a perceived angular size enlargement of horizon objects, by a factor ...
Benacerraf B R - - 1993
This is a retrospective analysis of neonatal outcome in 32 fetuses diagnosed over a 3 1/2-year period as having cleft lip and palate by ultrasonographic examination. Unilateral versus bilateral complete cleft lip was accurately diagnosed in fetuses after 16 weeks' gestation. Incomplete cleft lip was more easily detected after 27 ...
Adams W - - 1993
The epidemiological evidence that the offspring of women exposed to influenza in pregnancy are at increased risk of schizophrenia is conflicting. In an attempt to clarify the issue we explored the relationship between the monthly incidence of influenza (and measles) in the general population and the distribution of birth dates ...
Oberg K C - - 1993
A recent focus on fetal surgery has raised the possibility of fetal cleft lip and palate repairs. Because of the fetus's marked plasticity, fetal repairs may have results that more closely approximate normality. Furthermore, the impact on cost management could be dramatic with a decreased need for extensive postoperative care, ...
Yoshida H - - 1993
tau in paired helical filaments (PHF-tau) and fetal tau share several phosphorylated epitopes, as revealed by several phosphorylation-dependent PHF monoclonals. We have asked whether there is any difference between the two molecules in tubulin assembly-promoting activity and found that PHF-tau is almost assembly incompetent, whereas fetal tau is low in ...
Duffy D L - - 1993
BACKGROUND: Occurrence of psoriasis has been found to be strongly genetically controlled in Northern European and U.S. twin and family studies. OBJECTIVE: Our purpose was to assess cumulative incidence and heritability of psoriasis in the Australian population. METHODS: Australian twins reporting psoriasis on a screening questionnaire received from 3808 pairs ...
Christensen K - - 1993
The etiology of most cases of isolated cleft palate (CP) is unknown. The relative importance of genes and environment can be studied using the classical twin method but only few and potentially highly selected CP twin data are available. The present CP twin study was based on four Danish nationwide ...
Shibata M - - 1993
The teratogenic potential of cis-1-[4-(p-menthane-8-yloxy)phenyl] [corrected] piperidine (YM9429) was evaluated using CD (SD) rats. YM9429 induced cleft palate and specific skeletal variations including accessory cervical and lumbar ribs or excessive formation of the 7th lumbar vertebra by oral treatment during the organogenetic periods. No visceral or external malformations were induced, ...
Schulman P - - 1993
Is optimism heritable? We gave the Attributional Style Questionnaire (ASQ), a measure of optimism, to 115 monozygotic twin pairs (MZ) and 27 dizygotic twin pairs (DZ). The intraclass correlations of the ASQ scores were 0.48 for MZ twins (P < 0.0001) and 0 for DZ twins. Though the sample size ...
Thompson L A - - 1993
Three recent studies have used twin data to explore the possibility of differential contributions of heritability and environmentality to individual differences in cognitive ability as a function of ability level (Detterman, D. K., et al., Behav. Genet. 20:369-384; 1990; Bailey, M. J. and Revelle, W., Behav. Genet. 21:397-404, 1991; Cherny, ...
Whitam F L - - 1993
Twin pairs in which at least one twin is homosexual were solicited through announcements in the gay press and personal referrals from 1980 to the present. An 18-page questionnaire on the "sexuality of twins" was filled out by one or both twins. Thirty-eight pairs of monozygotic twins (34 male pairs ...
Parazzini F - - 1993
STUDY OBJECTIVE: To analyze risk factors for multiple births. DESIGN: A case-control study. Cases were 103 women (median age 31 years, range 20-44) who delivered multiple births not related with treatment for infertility at the 'Clinica Luigi Mangiagalli' of Milan. A total of 27 women delivered monozygotic twins and 76 ...
de Jong P J - - 1993
The present study investigated whether phobics show an illusory correlation (IC) between phobia-relevant stimuli and aversive events. Nineteen treated and 19 untreated spider phobics were exposed to a series of 72 slides. Three different categories were used: Phobia-relevant slides (spiders), alternative fear-relevant slides (weapons), and neutral slides (flowers). Slides were ...
Kemper T L - - 1993
A review of the neuropathology of infantile autism shows abnormalities in the limbic forebrain and in cerebellar circuits. The role of the cerebellar lesions in the symptomatology of infantile autism is unknown. The cerebellar findings appear to date from a fetal stage of development with evidence for an ongoing process ...
Rapaport M H - - 1993
There is a confusing history of immune findings associated with schizophrenia. At least some of these discrepant results may be artifacts caused by heterogeneity. In an attempt to decrease heterogeneity, we studied three groups of monozygotic twins who were either discordant for schizophrenia, concordant and ill, or concordant and well. ...
Ooki S - - 1993
The present study aimed at clarifying the characteristics of twins' physical growth. First, 557 pairs of normal Japanese twins were analyzed according to the following three life stages: (1) intrauterine growth, (2) body weight and height from birth to 6 years, and (3) body weight and height at school age ...
Nakamura I - - 1993
The distribution of menarcheal interval-length between cotwins in 67 pairs of female identical twins in Tokyo was found to cluster at fairly constant intervals. When delayed in one twin, the menarche occurred in the second twin at intervals of approximately 28 days after that of the earlier twin. This finding ...
Knox E G - - 1992
STUDY OBJECTIVE: The aim was to test a large set of childhood leukaemia and lymphoma registrations for the presence of short radius spacial clusters. DESIGN: The study was a geographical cluster analysis. SETTING: England, Wales and Scotland. PATIENTS: All registrations for leukaemia and lymphoma between 1966 and 1983 in children ...
Burn D J - - 1992
We used 18F-dopa PET to examine concordance for dysfunction of the nigrostriatal dopaminergic system in 18 co-twins of patients with Parkinson's disease (PD) and scanned one clinically concordant monozygotic (MZ) twin pair, 17 asymptomatic co-twins (10 MZ, 7 dizygotic [DZ]), and 13 twins with PD (8 MZ, 5 DZ). Mean ...
Bracha H S - - 1992
OBJECTIVE: Since the second prenatal trimester is the critical period of massive neural cell migration to the cortex, and fingertip dermal cells migrate to form ridges during this same period, the authors sought to determine whether there are differences in fingertip ridge count in pairs of monozygotic twins discordant for ...
Shah Y G - - 1992
Doppler blood flow studies in 63 pairs of concordant and 17 pairs of discordant twins were compared with those of 277 appropriate for gestational age singleton fetuses. Discordancy was defined as a more than 20% intra-pair actual birth weight difference. The data were divided into five groups: singletons and large ...
Berker E - - 1992
Studies of 10 sets of twins discordant for hydrocephalus in early life revealed striking differences in degree and nature of development of verbal vs. non-verbal cognitive functions, birth order, and hand and eye preference. Despite similar (four dizygotic pairs) or identical (six monozygotic pairs) genetic endowment and grossly similar intra- ...
Rensberger J M - - 1992
Astrapotheres, large extinct ungulates of South America, share with rhinoceroses vertical prism decussation in the cheek tooth enamel. The similarity extends beyond merely the direction of the planes of decussation. The vertical decussation in astrapotheres is confined to the inner part of the enamel and has uniformly well-defined zones in ...
Meshkova T A - - 1992
The laterality effects in 10 symmetrical EEG derivations in twins (20 MZ and 20 DZ pairs with a mean age of 20.5 years) were examined. The quantitative and qualitative analyses gave the following results: (1) cotwins in the MZ and DZ pairs differed particularly in the intensity of asymmetry for ...
Imaizumi Y - - 1992
Twinning rates in all of Japan for 1951-1968 and 1974-1990 were analyzed using data from vital statistics of Japan. The twinning rate per 1,000 births was 6.43 in 1951 and remained nearly constant until 1968, then decreased to 5.79 in 1974 and gradually increased to 7.00 in 1990. The MZ ...
Koertvelyessy T - - 1992
The repeated-pairs of surnames in marriages (RP) approach is applied to the population of Tiszaszalka in north-eastern Hungary. The results indicate that: (1) lineage-like behaviour in mate choice results in population subdivision in both the Catholics and the Protestants of the village; (2) unlike in some other Tiszahat villages, the ...
Beckmann H - - 1992
The birthrates of 507 schizophrenic patients with high familial loading were compared to the general population. The patient group showed a clearcut decrease in births within a defined winter and spring period. In particular, this was obvious if Leonhard's classification of schizophrenia was applied. The hypothesis is proposed that, in ...
Bronshtein M - - 1991
Cleft lip and palate have been diagnosed antenatally only in the late midtrimester or at later gestational ages, when it is too late for pregnancy termination. The diagnosis of fetal cleft lip was made in three low-risk nulligravid women at 14 to 16 weeks of gestation by systematic screening with ...
Lamon-Fava S - - 1991
Heritability of plasma apolipoprotein (apo) A-I, apo B, and low density lipoprotein (LDL) subclasses and concordance for lipoprotein(a) excess were assessed in 109 monozygotic (MZ) and 113 dizygotic (DZ) twin pairs participating in the third examination of the National Heart, Lung, and Blood Institute Twin Study. The intraclass correlation coefficient ...
Siegel M I - - 1991
Midfacial hypoplasia in patients with complete clefts of the lip and palate is considered to be the result of congenital dysmorphogenesis combined with surgical effects. The present study describes congenital correlates of midfacial hypoplasia by examining the relationships between premaxillary size and a number of adjacent oronasal capsular components in ...
Bracha H S - - 1991
Genes that predispose to psychosis may act by making individuals more vulnerable to the disruptive effects of various prenatal insults. Fetal organogenesis is mostly completed in the first prenatal trimester. The second trimester is a critical period of massive neuronal migration from the periventricular germinal matrix to the cortex. A ...
Corey L A - - 1991
Twin studies provide an efficient method for examining the importance of genetic and environmental factors in the etiology of disorders such as epilepsy. Population-based twin registries are especially valuable for studies of this type since effects of reporting and self-selection biases on the resulting data are minimized. Among 14,352 twin ...
Onstad S - - 1991
In a combined twin-family study, the concordance for subtype of schizophrenia was investigated. The sample included 31 monozygotic (MZ) and 28 dizygotic (DZ) twin probands fulfilling the criteria of DSM-III-R schizophrenia. Their co-twins and first-degree relatives were personally interviewed and diagnosed in accordance with DSM-III-R. Any twin or relative diagnosed ...
Michel F C FC - - 1991
The role of lignin peroxidases (LIPs) and manganese peroxidases (MNPs) of Phanerochaete chrysosporium in decolorizing kraft bleach plant effluent (BPE) was investigated. Negligible BPE decolorization was exhibited by a per mutant, which lacks the ability to produce both the LIPs and the MNPs. Also, little decolorization was seen when the ...
Ericsson C H - - 1991
Bronchial reactivity was studied twice in eight monozygotic twin pairs discordant for allergic rhinitis with pollen hypersensitivity, during the winter season (all eight pairs) and during the pollen season (seven pairs). On both occasions, the allergic twins showed significantly higher reactivity than their nonallergic siblings. The results indicate that moderate ...
Dodson T B - - 1991
We have previously described a model for in utero cleft lip repair in rabbits. Cleft lip and alveolus (CL) were created in fetal rabbits at 24 days gestation (term, 31 days). In this study, postnatal maxillary growth was evaluated in three groups of animals: 1) unoperated controls, 2) unrepaired CL, ...
Scaf G - - 1991
The nasopharyngeal area in 149 patients with cleft lip and palate and 157 normal individuals was evaluated by cephalometric radiography. The patients were male and female Caucasians, ranging in age from 12 to 16 years. Linear cephalometric parameters: (Ptm'-Sl; Ptm'-IPPF; IPPF-I, I-Ptm'), ANS angle and nasopharyngeal area were utilized. From ...
Grine F E - - 1991
Recently recovered hominid postcrania from Member 1, Swartkrans Formation include the proximal and distal ends of a right radius attributed to a single individual of Paranthropus robustus. These fossils are essentially similar to Australopithecus afarensis, A. africanus, and P. boisei homologues. The head manifests an ape-like circumferentia articularis, and the ...
Reed T - - 1991
A dermatoglyphic index derived from monozygotic (MZ) twins of known placental type was used to estimate placentation retrospectively in a sample of adult male MZ twins. Examination of behavioral test scores with respect to placentation showed that the within-pair difference of most measures of type A behavior was smaller in ...
Mooney M P - - 1991
As part of an ongoing study of cleft lip and palate fetal morphology, premaxillary development was examined cross-sectionally in a sample of 20 "normal" fetuses and 9 fetuses with complete clefts of the lip and palate ranging in age from 8 to 21 weeks. The specimens were stained with H ...
Keusch C F - - 1991
Studies of twins provide insight into the relative contribution of genetic and environmental factors in the causality of structural anomalies. Thirty-five affected twin pairs were identified from a group of 1114 patients with congenital craniofacial deformities evaluated from 1972 to 1989. Forty-three of these 70 twins exhibited one or more ...
Husby H - - 1991
The usual assumption that monochorionic twins are monozygotic has recently been questioned, based on blood group discordance in 3 of 12 monochorionic pairs. Therefore, this study evaluates the validity of zygosity diagnosis based on examination of placental membranes, and at the same time evaluates Weinberg's differential rule in a Danish ...
Droual R - - 1991
The incidence and degree of scoliosis were investigated in broiler chickens with and without intertarsal deformities associated with slipped gastrocnemius tendons. In both groups, the incidence of scoliosis was similar and there was a significant tendency for scoliosis to be convex on the right side. However, scoliosis was significantly greater ...
Reed T - - 1991
Dizygotic (DZ) World War II veteran twins who participated in the National Heart Lung and Blood Institute (NHLBI) Twin Study have been reported to have greater variance than monozygotic (MZ) twins for plasma high-density lipoprotein cholesterol (HDL-C), cholesterol in the low-density fraction of HDL (HDL2-C) and apolipoprotein A-I, a major ...
Choi W K - - 1990
A pair of identical 10-year-old Chinese twins with bilateral mesiodentes of opposite orientation are presented. Three mesiodentes were conical and impacted, while the other one had erupted and was incisiform in shape. All roots of the mesiodentes were completely formed. Intrapair twin comparison showed a high degree of genetically determined ...
Smith J A - - 1990
This study follows one woman through her pregnancy and the transition to motherhood, exploring the relationship between this life-event and aspects of her personal identity. Repertory grids were obtained from her four times during the transition, and at the end of the study she completed retrospective grids for how she ...
Rodis J F - - 1990
Twenty-five discordant twin pairs were assessed ultrasonically in a longitudinal fashion and were compared with a group of 60 concordant twin pairs. The growth parameters of the larger fetus of the discordant pair did not differ significantly from the concordant twins, while the smaller of the discordant pair exhibited a ...
Jones R - - 1990
Objective refraction through plus fogging lenses and base-in prisms revealed that normally accommodation is not completely relaxed when the stimulus to accommodation is zero. The myopic shift in the refractive error due to this focus error of accommodation was defined as physiological pseudomyopia. Two previously established features of accommodation are ...
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