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Results 451 - 500 of 625
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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 ...
Pietrusewsky M - - 1990
Stepwise discriminant function analysis and Mahalanobis's generalized distance are applied to 36 measurements recorded in crania from Australasia and Oceania for assessing biological relationships and possible origins of these populations. Craniofacial variation in Australia is found to be clinal. There is extreme diversity in the Murray River Valley and southern ...
Jorgensen A - - 1990
In a sample of 129 female schizophrenic patients followed for a period of 22 years, an analysis of intercorrelations between background, premorbid, and clinical variables was performed. Poor outcome, as measured by amount of hospitalization, was associated with premorbid psychopathic traits, defective premorbid social adjustment, early onset, and nonparanoid subtype ...
Anderson K P - - 1990
We addressed the hypothesis that premature ventricular complexes (PVCs) and sustained ventricular tachycardia (VT) have identical QRS morphologies in 20 patients with recurrent sustained VT. Continuous six-lead ECGs of PVCs and sustained VT induced with programmed stimulation were recorded. A computer program divided the PVCs and VT beats of each ...
Svartengren M - - 1990
Bronchial reactivity was studied in six asthma-discordant monozygotic twin pairs. In four pairs, atopy was confirmed in the asthmatic twin. It was not confirmed in any of the nonasthmatics. In five pairs, the asthmatic twin was markedly more reactive than the nonasthmatic partner. Bronchial reactivity correlated significantly with total IgE. ...
Ooki S - - 1990
Subjects were 189 twin pairs, 165 MZ and 24 same-sexed DZ, who entered the junior high school affiliated to Tokyo University (sample T), and 93 twin pairs, 71 MZ and 22 same-sexed DZ, who were registered at Kinki University (sample K). The zygosity was previously identified by many genetic markers, ...
Romanov K - - 1990
The effect of migration on pairwise concordance for disease was assessed in 11,154 twin pairs of the Finnish Twin Cohort Study by comparing the pairs living in the same province to the pairs which members were living in different provinces of Finland. The cumulative incidence of psychosis and hypertension for ...
Kolesárová D - - 1990
The cytoarchitectonics of the parabrachial nuclear complex (PBNC) were studied in brain stem sections, stained with cresyl violet, from laboratory and phylogenetically interesting mammals. In all the animals studied, the PBNC can be separated into the following subnuclei: dorsal (D), dorsomedial (DM), dorsolateral (DL), lateral (L), medial (M), ventral (Ve) ...
Delezoide A L - - 1990
Cerebral midline anomalies are defects of anatomical relationships between the two hemispheres. They include holoprosencephalies, septal and commissural agenesis. Agenesis of the olfactory tract (arhinencephalies) are often included in the spectrum of holoprosencephalies and the facial phenotype is thought to be affected and characteristic in the midline development abnormalities. This ...
Teikari J M - - 1989
The Finnish Twin Cohort Study was used to compile twin pairs in whom one or both members had astigmatism. Seventy-two pairs of twins (42 monozygotic and 30 dizygotic) were found. Refractive error and astigmatism information was obtained by asking the twins to send their last prescription for glasses to the ...
Tarp U - - 1989
We have followed 3 pairs of monozygotic twin sisters with seropositive rheumatoid arthritis (RA) since 1966, 1971 and 1975. RA developed in the probands at the age of 25, 39 and 21 years and in the cotwins 37, 8 and 19 years later, respectively. Two pairs, Nos 1 and 3, ...
Teikari J - - 1989
Twenty twin pairs (9 monozygotic and 11 dizygotic) were examined to test the effect of genetic and environmental factors on the etiology of refractive error, axial length of the eyeball, and total astigmatism. The twins pairs were ascertained from the nationwide Finnish Twin Cohort Study (FTCS). The monozygosity was confirmed ...
Nagashima H - - 1989
Porcine morulae were bisected by a glass needle after softening of zonae pellucidae by pronase followed by a treatment with 0.05% trypsin/0.02% EDTA for decreasing intercellular junction of blastomeres. Transfer of 49 half-morulae to three recipients resulted in one pregnancy. The blastocysts were bisected symmetrically so as to leave a ...
Thomalla J V - - 1989
The etiology and incidence of posterior urethral valves is unknown. We report on a pair of non-twin siblings with identical pathology stemming from type I posterior urethral valves as well as discordance in a pair of monozygotic twins. Familial posterior urethral valves have been reported before in both twin and ...
Salgado L J - - 1989
The present report describes on a 1-year-old girl with macrocephaly, bulging forehead, ocular hypertelorism, antimongoloid palpebral slant, convergent strabismus, atrophy of optic papillae, short philtrum, protruding lips, high-arched palate, bifid uvula, broad trunk, apparently widely spaced nipples, diastasis recti, small umbilical hernia, tapering fingers, fifth-finger clinodactyly, postaxial polydactyly of the ...
Contin M - - 1989
The effect of a 2.5-fold increase in daily carbidopa intake on the bioavailability of levodopa was studied in six patients with Parkinson's disease on a low chronic regimen of carbidopa-levodopa (Sinemet) at the fixed ratio of 1:10. The extent of levodopa absorption, expressed as the area under the 11-h plasma ...
Shea S A - - 1989
The resting breathing patterns of healthy adult identical twins were compared to see if there was any possible genetic component in the determination of this pattern. From breath-by-breath analysis of airflow, measured with a pneumotachometer (9 pairs of twins), the pattern of breathing was quantified in terms of individual respiratory ...
Lewis S W - - 1989
In an attempt to replicate the influential study of Boklage (1977), hand preference for writing was examined in a new series of 30 monozygotic (MZ) and 30 dizygotic (DZ) twin pairs in whom the proband had suffered a functional psychosis. In contrast to the original report, no increased rate of ...
Okazaki J - - 1989
Glycosaminoglycans (GAG) were extracted from the connective tissue of the palatal rugae, separated by electrophoresis and compared with the results obtained for the remaining palatal mucosal and gingival connective tissues. The GAG content of the rugae (3.01 mg/g defatted dry weight) was higher than in the remaining palatal mucosa (2.33 ...
Kendler K S - - 1989
This report examines the impact of two major kinds of unequal ascertainment on the estimation of true probandwise concordance (Cpbt) in twin studies: 1) concordance-dependent - where the ascertainment rate differs in affected members of concordant vs discordant pairs, and 2) non-independent - where ascertainment rates differ in affected members ...
Lyon M - - 1989
The conference on Fetal Neural Development and Schizophrenia which was held in Washington, DC, May 31-June 1, 1988, focused on factors of possible etiological significance in fetal development. Schizophrenia researchers joined experts in brain imaging, neuropathological, and neurochemical changes in brain development and investigators of potential genetic and neurobehavioral causes ...
Paradis M - - 1989
After surgical removal of a parasitic cyst in the right prerolandic area, an educated 25-year-old male exhibited obvious deficits in one of his three languages (Gujarati), with no measurable deficits in the other two (French and Malagasy). The patient spoke all three languages fluently before the operation. Gujarati and Malagasy ...
Procházková I - - 1989
The study presents a craniometric analysis of facial morphology in patients with complete unilateral cleft lip and palate with reverse overjet well developed. The aim was to find out which structures are responsible for the incidence of reverse overjet. Examined were: 30 patients, aged 12-15, with this affection and 30 ...
Niemi J - - 1988
As convincing as the discussion presented by Elizabeth Bates, Angela Friederici and Beverly Wulfeck on grammatical morphology in aphasia in three languages may seem, we were at loss when trying to reconstruct the quantitative basis of their argumentation (see Bates et al., 1987, Grammatical morphology in aphasia: Evidence from three ...
Cunniff C - - 1988
We evaluated six pairs of conjoined twins: four pairs were dicephalus, and two were of the ischiopagus type. In three of the four dicephalus pairs, the right twin had an abnormality of laterality that included a right aortic arch, reversed great vessel orientation, bilateral right-sided isomerism of the lungs, asplenia, ...
Hassoun E A - - 1988
The importance of inhibition of ornithine decarboxylase (ODC) activity in murine embryonic tissues for the teratogenic action of the TCDD congener 3,3',4,4'-tetrachloroazoxybenzene (TCAOB), has been studied. When D,L-alpha-difluoromethyl ornithine (DFMO), an inhibitor of ODC activity, was coadministered with TCAOB, it decreased the frequency of cleft palate compared with TCAOB alone. ...
Kimes K R - - 1988
The present study examines the relative contributions of the nasal septum and airway volumes to the total volume of the fetal nasal capsule. For comparative purposes, 29 human fetal specimens (20 "normal" and 9 with cleft lip and palate (CLP] were celloidin embedded, sectioned, and stained with hemotoxylin and eosin. ...
Fine-Levy J B - - 1988
A differential aversive associative conditioning paradigm was used to assess the ability of the spiny lobster Panulirus argus both to associatively learn not to respond to the odorant stimulus to which it was conditioned and to discriminate between odorants. The paradigm consisted of pairing an aversive stimulus (pseudopredator) with a ...
Walton S - - 1988
Sebum excretion and acne grades were measured in 20 pairs each of identical and non-identical like-sex twins. The identical twins had virtually identical rates of sebum excretion (P greater than 0.05), but they had a significantly different degree of acne severity (P less than 0.01). The non-identical twins had significantly ...
Stassen H H - - 1988
Within the broader context of our investigations into the heredity of the human EEG, we analysed the EEGs of 28 pairs of monozygotic and 21 pairs of dizygotic twins who were separated as infants and reared apart. The principal goal of this study was to determine the degree to which ...
Christian J C - - 1988
Electroencephalogram (EEG) recordings were made from 26 pairs of monozygotic (MZ) and 26 pairs of dizygotic (DZ) adult male twins, before and after alcohol ingestion. After a baseline EEG and a light breakfast, 1.2 ml/kg of ethanol was given orally over 15 min and the EEG repeated four times at ...
Vlietinck R - - 1988
Most population studies of twins estimate the number of monozygotic (MZ) and dizygotic (DZ) pairs by Weinberg's differential rule. This rule assumes that within the DZ twins the numbers of unlike-sexed (U) and like-sexed (L) twins are equal. The literature on the validity of Weinberg's rule is still controversial. In ...
Fox R A - - 1988
A multidimensional scaling experiment was conducted to determine the perceptual structure of 11 American English vowels produced by a competent esophageal speaker. Estimates of perceptual distance among these vowels were obtained using a 9-point similarity/dissimilarity scale and were analyzed using an individual differences scaling algorithm (INDSCAL). A three-dimensional perceptual space ...
Rosenfield M - - 1987
The accommodative response (AR) to disparity-vergence and blur stimuli was determined for 45 subjects; 15 emmetropes, 15 late-onset myopes (LOM's), and 15 early-onset myopes (EOM's). The accommodative response was measured at approximately 1-s intervals for 50 s using an objective infrared optometer. Disparity-driven accommodation was induced by a 4 delta ...
Kinnunen E - - 1987
A nation wide Finnish Twin Cohort was linked with sickness insurance and hospital discharge registers on the basis of the unique identification number assigned to each Finnish citizen. The study series consisted of 4,063 monozygotic (MZ) and 9,001 dizygotic (DZ) same-sexed twin pairs born before 1958 and alive in 1981. ...
Boles D J - - 1987
In 1952, Goldenhar described a pair of monozygotic twins who were discordant for epibulbar dermoids, auricular appendages, malformations of the auricle, and hemifacial microsomia. Eighteen twin pairs have subsequently been described in which at least one member exhibited these manifestations. We report on an additional pair of discordant dichorionic monozygotic ...
Sato Y - - 1987
A palatal lift prosthesis technique for edentulous patients has been described. A movable palatopharyngeal section that elevates the soft palate by the force of orthodontic wires was designed. The prosthesis with the movable palatopharyngeal section improved both speech and swallowing. This method may be useful for some edentulous patients with ...
Tyan M L - - 1987
Pregnant mice from the congenic strains C57BL/10Sn, B10.BR, B10.A/SgSn, B10.A(5R)/SgSn, B10.A(2R)SgSn and B10.A(18R)Sg were fed Purina Laboratory Chow or the same diet plus approximately 400 IU vitamin A daily and given 80 mg/kg dexamethasone intra-peritoneally or a sham injection on the 12th day of pregnancy. It was found that only ...
Reveley M A - - 1987
Eleven identical (monozygotic) twin pairs discordant for schizophrenia and 18 unselected control monozygotic twin pairs received a computed tomographic scan. Brain absorption density was determined on quadrants at five slice levels using a fully automatic program that eliminated cerebrospinal fluid spaces from analysis. There was no difference in brain density ...
Siegel M I - - 1987
As part of an ongoing study of cleft palate fetal morphology, normal and dysmorphic development of the human fetal nasal capsule was studied in a cross-sectional sample of 29 human fetuses (20 "normal" and 9 cleft), ranging in age from 8 to 21 postmenstrual weeks. The specimens were celloidin embedded, ...
Dupas P H - - 1987
This study of eight patients compared the pantographic numeric data obtained with a concave clutch with those obtained with a flat clutch. The slight alterations that resulted were insignificant and varied with each patient. The only difference between Depoorter's study and this one is the manual calculation of the EPRI ...
Vincent J H - - 1987
This paper summarizes a body of work that has been carried out to define quantitatively the aerosol fraction that is inspired by people in workplace situations. A critical comparison is made between the versions of inspirability proposed by the International Standards Organization (ISO) and the American Conference of Governmental Industrial ...
Kitchens C S - - 1987
Female twin daughters of a man with hemophilia B were determined to be identical but widely discordant with respect to their degree of factor IX deficiency. The proposita had a marked deficiency (3%) of factor IX with clinical bleeding. She became pregnant. Delivery was managed with infusion of factor IX ...
Bressers W M - - 1987
Recent changes in the estimated incidence of monozygotic twinning in 15 European populations are described. The overall trend was an increase in the monozygotic twinning rate (MZTR) since the 1960s, particularly in those countries in which the use of oral contraceptives (OC) was widespread. A slower increase or even a ...
Kouvalainen K - - 1987
Levels of immunoglobulins IgG, IgA, IgM and IgE were determined in 8 MZ and 14 DZ twin pairs at the ages of 6-11 years, 12-17 years and 15-20 years. Intrapair similarity in immunoglobulin levels was found to be higher in the MZ than in the DZ twins, especially in the ...
Rogers J M - - 1987
Technical-grade dinocap, a complex-mixture fungicide, is teratogenic in the CD-1 mouse, causing cleft palate and otolith defects. In this study we compared the developmental toxicities of 2,4-dinitro-6-(1-methylheptyl)phenyl crotonate and 2,6-dinitro-4-(1-methylheptyl)phenyl crotonate, model isomers of the major active ingredients of technical dinocap, to the known teratogenicity of the technical compound. Individual ...
Boklage C E - - 1987
For epidemiological purposes, it is customary to assume that same-sex (SS) dizygotic (DZ) twin pairs are approximately equal in number to unlike-sex (OS)-DZs, the remainder of the SS pairs being monozygotic (MZ). It is also customary to consider OS-DZs to be epidemiologically representative of all DZs, which can only mean ...
Chen C J - - 1987
Delivery records of public hospitals and birth certificates of household registration offices were examined to study the epidemiological characteristics of twinning rate from 1955 to 1984 in Taiwan. The MZ twinning rate was consistently higher than the DZ rate during the study period. The DZ rate declined steadily from 2.7 ...
Richter H M HM - - 1986
The aim of this study was to determine whether transection and pacing alter the frequency of the human jejunal pacesetter potentials (PPs). In 8 patients undergoing Roux gastrectomy, three temporary bipolar electrodes were implanted on the jejunal seromuscularis at sites 5 cm proximal to and 10 and 20 cm distal ...
Aho K - - 1986
The nationwide Finnish Twin Cohort was linked with the Sickness Insurance Register on the basis of the unique identification number assigned to each Finnish citizen. The study series consisted of 4137 monozygotic (MZ) and 9162 dizygotic (DZ) same-sexed twin pairs born before 1958 and alive in 1975. Altogether, 261 subjects ...
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