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Results 301 - 350 of 683
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Piatt J H JH - - 2001
External hydrocephalus (EH) is a transient, developmental condition in infancy characterized by macrocephaly and prominence of the subarachnoid spaces. The cause is unknown, but many patients have a family history consistent with autosomal dominant inheritance. This report describes a pair of monozygotic twins, only one of whom--the recipient of a ...
Johansson M - - 2001
Many studies have found an inverse association between fetal growth and cardiovascular disease related to the metabolic syndrome in adulthood. Nevertheless, the relative importance of genetics and the intrauterine environment remain unclear. The objective of the study was to test the fetal origins hypothesis and the fetal insulin resistance hypothesis ...
Schindler K - - 2001
The authors report the clinical, EEG, and SPECT findings of a patient with nocturnal paroxysmal dystonia. Ictal and interictal scalp EEG showed epileptiform activity over both frontal lobes. Subtraction ictal SPECT co-registered to MRI indicated a bilateral significant hyperperfusion in the anterior part of the cingulate gyrus. These results support ...
Wang J - - 2001
A classifying method on bulk blue ballpoint pen ink has been studied by Fourier transform infrared (FTIR) spectroscopy. By using this method, a total of 108 blue ink samples have been divided into two groups depending on their main component. Spectral characteristics of these inks such as frequency and absorbance ...
Su K P - - 2001
Because of the potential adverse events and teratogenesis of antipsychotic drugs, it is important to find a safe and effective treatment for pregnant women with severe mental illness. The membrane hypothesis of schizophrenia provides a rationale to treat symptoms of schizophrenia with omega-3 PUFAs. We report a 30-year-old married woman ...
Birch M P - - 2001
Male pattern balding is a common androgen-dependent trait. The frequency of balding in the population increases with age but not all men develop balding even in old age. It is well-known that balding tends to run in families but the nature of the underlying genetic predisposition and the mode of ...
Sundberg J - - 2001
The "singer's formant" is a prominent spectrum envelope peak near 3 kHz, typically found in voiced sounds produced by classical operatic singers. According to previous research, it is mainly a resonatory phenomenon produced by a clustering of formants 3, 4, and 5. Its level relative to the first formant peak ...
Warren J W - - 2001
Our objective was to determine whether there is a greater concordance of interstitial cystitis (IC) among monozygotic than dizygotic twins. Members of the Interstitial Cystitis Association (ICA) who responded to a survey about first-degree family members with IC symptoms or confirmed IC were requested to identify themselves if they were ...
Gervil M - - 2001
Migraine without aura (MO) is a multifactorial disorder. Expression of a disorder with multifactorial inheritance depends on the genetic liability and on environmental factors. A high liability is reflected by a high frequency of affected relatives. We have previously shown that monozygotic (MZ) twin pairs have a significant higher concordance ...
Happle R - - 2001
BACKGROUND: The system of Blaschko's lines has been insufficiently documented on the head and neck. OBJECTIVE: The aim of the study was to elaborate this pattern in a comprehensive way. METHOD: One hundred eighty-six figures showing skin lesions following Blaschko's lines on the head and neck were collected from literature ...
Achasov M N - - 2001
The process e(+)e(-)-->mu(+)mu(-) has been studied by the SND detector at the VEPP-2M e(+)e(-) collider in the phi(1020)-resonance energy region. The measured effective phi meson leptonic branching ratio B(phi-->l(+)l(-)) identical with square root of B(phi-->e(+)e(-))B(phi-->mu(+)mu(-))] = (2.89 +/- 0.10 +/- 0.06) x 10(-4) agrees well with the Particle Data Group ...
Belyaeva O B - - 2001
The primary stages of protochlorophyllide phototransformation in an artificially formed complex containing heterologously expressed photoenzyme protochlorophyllide-oxidoreductase (POR), protochlorophyllide, and NADPH were investigated by optical and ESR spectroscopy. An ESR signal (g = 2.002; H = 1 mT) appeared after illumination of the complex with intense white light at 77 K. ...
McAuliffe M J - - 2001
Minimal data exist describing tongue-to-palate contact patterns and their variability in normal speakers of English. Consequently, the aims of the present study were to examine, using a comprehensive profile of data analysis, tongue-to-palate contact patterns and their variability in a group of ten normal speakers of English using the Reading ...
Joseph J - - 2001
This article discusses studies of separated twins, with special emphasis on the Minnesota Study of Twins Reared Apart (MISTRA), to determine whether they support the existence of an important genetic component in behavioral and personality differences. The methods and conclusions of the MISTRA team are discussed in the context of ...
Loffredo L C - - 2001
OBJECTIVES: The evidence linking low levels of folic acid and orofacial clefting (OFC) is presently equivocal. There is stronger evidence for the role of folic acid supplementation in protection against the occurrence and recurrence of neural tube defects. The present investigation tested the hypotheses that cleft lip, cleft palate, or ...
Clarke J R - - 2000
We measured asthma in the last 12 mo, diagnosed by a respiratory physician at interview; atopy, defined by a positive skin prick test to any of eight common allergens; and bronchial hyperresponsiveness (BHR) to hypertonic saline, in 381 twin pairs aged 8 to 18 yr selected from the Australian Twin ...
Blickstein I - - 2000
OBJECTIVE: To challenge the hypothesis that discordant growth is a normal variation by relating birth weight discordance to total twin birth weight. METHODS Among 12,565 Israeli live-born twin pairs (1993-98), we compared total twin birth weight decile, the frequencies of three levels of discordance in the general population, over 25% ...
Sills E S - - 2000
That the zona pellucida (ZP) plays a prominent role in the physiology of some human twinning is an attractive, albeit incompletely proven, medical hypothesis. Indeed, an association has been proposed between manipulation of the ZP and/or native ZP microarchitecture and monozygotic (MZ) twins. Ovulation induction also has been theoretically linked ...
Westreich M - - 2000
The authors address the problem of why the cleft lip anomalad is not mentioned even once in the Talmud, which contains detailed reports of numerous other forms of pathology and congenital anomalies. It also attempts to define the Sandal deformity, one of the most common congenital anomalies mentioned in the ...
Cesari M - - 2000
BACKGROUND: Plasma homocyst(e)ine levels (pHo) can be a risk marker for cardiovascular diseases. Different factors affect pHo, but it remains unclear whether pHo are genetically determined and whether they are related to other risk markers, such as the angiotensin I converting enzyme (ACE) and the plasminogen activator inhibitor type-1 (PAI-1). ...
Catala M - - 2000
The case of a female fetus who died at the 38th week of gestation is reported. Neuropathological examination disclosed a hemispheric cleft located in the medial part of the left frontal lobe. The cleft did not extend to the ventricle and was not a true schizencephaly. Furthermore, a focus of ...
Michalowicz B S - - 2000
The causes of temporomandibular joint (TMJ)-related signs and symptoms are largely unknown. We tested the hypotheses that these signs and symptoms, as well as oral parafunctional habits, are substantially heritable. Questionnaire and clinical data were collected from 494 twins, including pairs of reared-apart and reared-together monozygotic (MZ) and dizygotic (DZ) ...
Leamy L J - - 2000
Non-directional variation in right minus left differences in bilateral characters, referred to as fluctuating asymmetry (FA), often has been assumed to be largely or entirely environmental in origin. FA increasingly has been used as a measure of developmental stability, and its presumed environmental origin has facilitated the comparisons of populations ...
Tuisku K - - 2000
Here, we will discuss the concept of subjective akathisia and present a patient case. Our patient was suffering from neuroleptic-induced hypokinesia and akathisia at the same time. The typical motor manifestations of akathisia were masked by hypokinesia, which made the diagnosis difficult. However, the subjective symptoms of akathisia were evident ...
Tucha O - - 2000
It has been reported that left-handed subjects are better able to write in mirror-reversed script than right-handers (Tankle & Heilman, 1983). Vaid and Stiles Davis (1989) conducted studies which led them to contradict the supposed superiority of left-handers in this area. In these studies, left as well as right-handed subjects ...
Davalbhakta A - - 2000
Birth of a cleft child is emotionally distressing to the parents. The opportunity for forewarning the parents is now possible with antenatal ultrasound diagnosis of the cleft. This has opened up a new chapter of antenatal counselling. We present a retrospective postal study of 124 primary cleft lip and/or palate ...
O'shaughnessy K M - - 2000
Preeclampsia is thought to be discordant in monozygotic twins. While recruiting for a genetic study into preeclampsia, we identified 4 sets of twins and a triplet gestation; all were monozygous on deoxyribonucleic acid "fingerprinting." Two twins were concordant for preeclampsia, and 2 of the triplets had pregnancy-induced hypertension, although only ...
Rosso I M - - 2000
OBJECTIVE: Although case-control investigations have shown an association between obstetric complications and schizophrenia, particularly among patients with early onsets, cohort studies have mostly failed to confirm this effect. The authors examined whether a history of fetal hypoxia and other obstetric complications elevated risk for early-onset schizophrenia in a 1955 Helsinki ...
Steffens D C - - 2000
OBJECTIVE: To examine the independent effects of the APOE genotype (APOE) and concordance for AD in twin pairs on the occurrence of AD in first-degree relatives. BACKGROUND: Studies of twins have been undertaken to investigate the influence of genes in a variety of conditions, including AD. A previous study, performed ...
McNeil T F - - 2000
OBJECTIVE: The aim of the study was to determine whether a history of obstetric complications and congenital minor physical anomalies are related to differences in the characteristics of brain structures observed within monozygotic twin pairs discordant for schizophrenia. METHOD: The size of the bilateral hippocampi and cerebral ventricles was studied ...
Haasen C - - 2000
OBJECTIVE: The elevated rate of schizophrenia among migrants has been explained in part by possible misdiagnosis. In this study an attempt is made to quantify the extent of potential misdiagnosis among migrants in comparison to non-migrants. METHOD: One hundred patients of Turkish origin (Tr-Pat) and a control group of 50 ...
Natsume N - - 2000
Three hundred and six mothers who gave birth to babies with cleft lip, or palate, or both, were matched with 306 who gave birth to healthy babies in the same area during the same time period. Significantly more babies in the cleft group had a family history of clefts (48/306 ...
Tazuke Y - - 2000
The authors present a pair of identical twins with congenital diaphragmatic hernia (CDH) diagnosed prenatally, who underwent successful surgical repair. They were diagnosed as having CDH at 32 weeks' gestation and showed respiratory distress soon after cesarean section at 33 weeks' gestation. Both survived after scheduled perinatal management followed by ...
Chaves-Vischer V - - 2000
We report clinical, neuroradiological and neuropathological findings of monozygotic twin sisters born at 30 weeks' gestation, with pontocerebellar hypoplasia (PCH) similar but not identical to type 2 PCH. They presented with hypertonia, jitteriness, spontaneous and provoked myoclonic jerks (hyperekplexia), apnoeic episodes, and progressive microcephaly. They died at 7 weeks of ...
Blaney S P - - 2000
The biology of scaling (allometry) can prove a useful tool in comparative anatomical studies. Amongst primates only the African Great Apes and Man possess a frontal sinus. The aim of this study was to identify the allometric properties of the frontal sinus in order to gain clues as to the ...
Treloar S A - - 2000
In a twin sample where duration of gestation can be controlled, a specific example of the fetal origins hypothesis concerning association between low birth weight and early age at menopause is explored. The hypothesis is based on the physiologically plausible path from intrauterine growth retardation and reduced numbers of primary ...
Ambach E - - 2000
A case of superfecundation and dual paternity in a twin pregnancy is presented. Placental abruption developed at week 33 of gestation and the two boys had to be saved by emergency cesarean section. As they shared one placenta, had almost identical weight and had the same sex, they were assumed ...
Kringlen E - - 2000
Twin studies in schizophrenia have been reviewed with special emphasis on concordance rates in population-based investigations. Sources of error have been discussed with particular focus on sampling. The pair-wise concordance rates in schizophrenia are 30-40% in MZ and 5-10% in DZ, with somewhat higher rates for proband concordance. The findings ...
Aricò M - - 1999
Langerhans cell histiocytosis (LCH) is considered a non-hereditary disorder. Evaluation of the few familial cases might provide insight into its aetiology and pathogenesis. We conducted a survey to identify familial LCH cases. Data on family history, zygosity assessment in twins, clinical and laboratory features, treatment outcome, and present status were ...
Peña-Méndez E M - - 1999
The hydrocarbons contents (n-alkanes, polycyclic aromatic hydrocarbons) were determined in the sea urchin Arbacia lixula. Multivariate data analysis as principal component analysis, factor analysis and, cluster analysis were applied to elucidate sources of pollution. PCA and FA were performed to establish the relationships between variables (hydrocarbons), samples (sea urchin) and ...
Piontelli A - - 1999
Diagnostic advances have made it possible to use ultrasonograph to assess placentation and therefore zygosity in utero in the case of monochorionic-monozygotic twins. Foetal behaviour of 15 monozygotic and 15 unlike-sexed dizygotic twin pairs was studied serially with ultrasounds from 10 to 22 weeks gestational age. Each twin, regardless of ...
Satoh K - - 1999
To find out whether the palatal plane is a useful indicator for evaluating the level of velopharyngeal closure, we did a cross-sectional study from early childhood to puberty of the vertical relationship between the palatal plane and the level of velarpharyngeal contact during velopharyngeal functioning in 61 patients with repaired ...
Kläning U - - 1999
BACKGROUND: A previous study demonstrated a higher rate of first hospitalisation for schizophrenia in twins than in singletons. AIMS: To compare the schizophrenia rates in monozygotic twins, dizygotic twins and the general population. METHOD: Through record linkage between the Young Cohort of the Danish Twin Register and the Danish Psychiatric ...
Imamura Y - - 1999
OBJECTIVE: The aim of this study was to examine the relationship between prenatal exposure to atomic bomb (A-bomb) radiation and the development of schizophrenia in adulthood. METHOD: We investigated the lifetime prevalence of schizophrenia among people prenatally exposed to the 1945 Nagasaki A-bomb, using the schizophrenia register and the A-bomb ...
Gervil M - - 1999
To investigate the importance of genetic and environmental factors to the etiology of migraine without aura and to compare the symptomatology of migraine without aura in monozygotic and dizygotic twins, 2,680 twin pairs were recruited from the population-based Danish Twin Registry. Monozygotic (MZ) and same-sex dizygotic (DZ) twin pairs, where ...
Reda M - - 1999
OBJECTIVES: Define differences in palatal and uvular dimensions between habitual snorers and healthy nonsnoring control subjects. Document the changes in palatal configuration after different types of palatoplasty. STUDY DESIGN: A prospective controlled clinical study was performed analyzing video recordings of the soft palate and oropharynx of 251 subjects (121 habitual ...
Chaushu S - - 1999
OBJECTIVE: The purpose of this investigation was to develop a reliable method of diagnosing the position of a displaced maxillary canine on the basis of a single panoramic radiograph. STUDY DESIGN: A total of 115 panoramic radiographs depicting 164 displaced maxillary canines were evaluated. The ratio of the width of ...
Gutknecht L - - 1999
The long-term effect of differences in placentation in MZ twins is a controversial subject. An effect has been clearly established for birth weight but data on psychological traits are still under debate. We studied 20 pairs of monochorionic MZ (MC MZ) and 24 pairs of dichorionic MZ (DC MZ) twins. ...
Witt P D - - 1999
This prospective study was undertaken to assess the long-term stability of velopharyngeal perceptual speech ratings of patients with repaired cleft palate. All patients were evaluated and managed at the Cleft Palate and Craniofacial Deformities Institute, St. Louis Children's Hospital. Patients alternately received palatoplasty with or without intravelar veloplasty. Two senior ...
Hopkins W D - - 1999
Heritability of hand preference was tested in a sample of 188 chimpanzees (Pan troglodytes). Hand preference was measured by coordinated bimanual actions, and concordance percentages were compared between parents and offspring and siblings. Among siblings, concordance percentages were compared for dyads in which both individuals were raised by chimpanzees, both ...
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