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Results 601 - 650 of 1280
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Leiman M - - 2000
Ogden's concept of the matrix of transference as the inter-subjective basis in psychotherapy and psychoanalysis is examined by using the notion of sign-mediated activity. After an introduction to the concept of activity, Ogden's account of the autistic-contiguous position and his restatement of the Kleinian paranoid-schizoid and depressive positions as the ...
Nijland M J - - 2000
OBJECTIVE: Ultrasound studies of hourly urine production rate in human fetuses have suggested that a fall in urine production occurs in state 2F (fetal quiet sleep) secondary to a state-dependent decrease in renal blood flow. We sought to ascertain the relationship between fetal hourly urine production rate and behavioral state ...
Tancini B - - 2000
It is believed that the lysosomal glycohydrolase beta-N-acetylhexosaminidase plays a part in several important processes of reproduction and it has been postulated that this enzyme is subject to hormonal regulation. During pregnancy, activity levels of the enzyme are strongly increased in both human and rat serum. However, little is known ...
Riley S C - - 2000
Type 1 NAD(+)-dependent 15-hydroxyprostaglandin dehydrogenase (PGDH) is the key enzyme for metabolism of active primary prostaglandins to inactive forms in gestational tissues. The present study examined the activity and immunolocalization of PGDH in the ovine placenta, fetal membranes and uterus over the latter half of pregnancy, and its potential regulation ...
Moutsatsou P - - 2000
Human chorionic gonadotrophin (hCG) has been used as a serum biochemical marker of Down's syndrome (DS) pregnancies, and recent studies have reported an increase in a hyperglycosylated form of the protein associated with DS. In the present study, the activity of the combined soluble serum sialyltransferase (ST) enzymes was examined ...
Crocker I P - - 2000
BACKGROUND: Pregnancy exerts suppressive effects on rheumatoid arthritis (RA). An attenuation in neutrophil function in late pregnancy which may explain this amelioration has previously been reported. OBJECTIVE: A longitudinal investigation of neutrophil activity in healthy pregnant women (n=9) and pregnant patients with RA (n=9), compared with age matched non-pregnant patients ...
Fassett M J - - 2000
OBJECTIVE: This study was undertaken to describe pregnancy-associated activated protein C resistance and the presence of the factor V Leiden mutation in a sample population of pregnant Hispanic women. STUDY DESIGN: Twenty healthy Hispanic women with single intrauterine pregnancies were randomly selected. Blood samples were taken before 8 weeks' gestation, ...
Blaszczyk T - - 2000
In the present study we screened extracts of 56 widely used dried Chinese medical plants or their parts (TCD) for their antimycotic properties against pathological phyla of Aspergillus fumigatus, Candida albicans, Geotrichum candidum and Rhodotorula rubra. The highest activity against Aspergillus fumigatus was shown by Carthamus tinctorius L. (flos) and ...
Applegarth D A - - 2000
We report three false negative prenatal diagnostic results, using direct measurement of glycine cleavage enzyme activity in uncultured chorionic villus tissue from 290 pregnancies at risk for non-ketotic hyperglycinaemia (NKH). Testing was done by two centres: Vancouver, Canada and Lyon, France. One false negative result had activity near the lower ...
Hughes J R - - 2000
The goal of this study was to determine distinctive aspects of Mozart music that may explain the "Mozart Effect," specifically, the decrease in seizure activity. As many as 81 musical selections of Mozart, but also 67 of J.C. Bach, 67 of J.S. Bach, 39 of Chopin and 148 from 55 ...
Shu H - - 2000
BACKGROUND: Since protein C inhibitor (PCI) inhibits activated protein C (APC) and a number of proteases, one would expect lower concentrations of PCI in a hypercoagulable state due to increased consumption of the inhibitor. Normal pregnancy is associated with a state of activated hemostasis, where response to APC is depressed. ...
Valoti M - - 2000
The monoamine oxidase inhibitor L-deprenyl [(-)-deprenyl, selegiline] is an effective therapeutic agent for improving early symptoms of idiopathic Parkinson's disease. It appears to exert this action independently of its inhibition of monoamine oxidase B (MAO-B) and some of its metabolites are thought to contribute. Cytochrome P450 (CYP) activities are known ...
Baiza-Gutman L A - - 2000
Peroxidase has been associated with estrogen action in the uterus. This enzyme plays an important role in the control of hydrogen peroxide levels and in catechol estrogen production. Since the uterus, during early pregnancy, is subjected to estrogen and progesterone regulation, we analyzed the changes of peroxidase activity in relation ...
Davis G L - - 2000
Routine hemostatic laboratory tests lack sensitivity and are of little value in the detection of the pregnancy associated hypercoagulable conditions. Assays for F 1 + 2, AT levels, TAT complex, APC activity, FPA, D-Dimers, tPA, plasminogen, PAI 1, and PAI 2 are more specific for fibrin formation and lysis. Monitoring ...
Groner B - - 2000
The mammary epithelium undergoes cyclical periods of cellular proliferation, differentiation and regression. These processes are under the control of the hormones secreted during pregnancy, lactation and involution. Signaling pathways have been identified that connect the hormonal stimuli with the transcription of genes responsible for the determination of the cellular fate. ...
Shafik A - - 2000
The levator ani (LA) is a muscle of evacuation and acts as well to support the pelvic viscera. An increase of the intra-abdominal pressure beyond the physiologic limits and visceral overload are speculated to interfere with LA functional activity. This consideration was a stimulus to study the effect of pregnancy ...
Wu J J - - 2000
Expression of the cx43 gene for the gap junction protein, connexin43 (Cx43), through activator protein (AP)-1 activity has been shown to be inhibited in human primary myometrial cultures pretreated with estrogen. In the present study, the primary myometrial cultures were shown to express predominantly ERbeta, a subtype of estrogen receptor ...
Kuriyama S N - - 2000
Xenobiotic metabolism is influenced by a variety of physiological and environmental factors including pregnancy and nutritional status of the individual. Pregnancy has generally been reported to cause a depression of hepatic monooxygenase activities. Low-protein diets and protein-energy malnutrition have also been associated with a reduced activity of monooxygenases in nonpregnant ...
Bennett D - - 1999
Phosphatase inhibitor-2 (I-2) is a mammalian phosphoprotein that binds to the catalytic subunit of type 1 serine/threonine phosphoprotein phosphatase (PP1c) and inhibits its activity in vitro. Recombinant PP1c differs from native PP1c in several biochemical criteria, including the requirement for Mn(2+), sensitivity to vanadate, and p-nitrophenyl phosphate (pNPP) phosphatase activity. ...
Narkewicz M R - - 1999
Serine is an amino acid that is not transported from the placenta to the ovine fetus. Thus, fetal plasma serine levels may be controlled by flux through their relevant biosynthetic pathways. This study was designed to determine, in fetal sheep tissues, the ontogeny of the three key enzymes in the ...
Sulaiman S - - 1999
The efficacy of three insecticides, fipronil 3G, lambda-cyhalothrin 10%CS, and sumithion 50EC were evaluated against the dengue vector Aedes albopictus in discarded tires in Kuala Lumpur, Malaysia. The dosage given for each insecticide was 0.01 g of active ingredient/m2. Fipronil 3G was the most effective larvicide with a residual activity ...
Middleton J W - - 1999
OBJECTIVE: To investigate the effect of medially linking knee-ankle-foot orthoses (KAFOs) on postural stability and sway during (1) quiet standing and (2) functional activities for persons with spinal cord injury (SCI). DESIGN: A randomized, mixed design, with the factors being activity (quiet standing and two function-mimicking tasks), SCI (present or ...
Maitz P K PK Microsearch Foundation of Australia, the Centre for Lasers and Applications, Macquarie University Sydney, NSW, Australia. - - 1999
A new sutureless technique to successfully anastomose the abdominal aorta of rats (1.3 mm in diameter) by using a fully biodegradable, laser-activated protein solder is presented. A total of 90 rats were divided into two groups randomly. In group one, the anastomoses were performed by using conventional microsuturing technique, whereas ...
Eskelinen L - - 1999
Analyses of the occupational activity of the 45-59-year-old Danes in the 10-year period 1984-1994 show that the decrease in occupational activity status is marked for women at the age of 50 and for men about 5 years later. Moreover, it is not possible to detect an increase in the occupational ...
Lee Y - - 1999
During the first half of gestation in the rat, prolactin (PRL) from the anterior pituitary gland exerts its luteotropic function on the ovary to stimulate progesterone secretion. During this period, beta-endorphin stimulates PRL secretion by regulation of dopaminergic neurons in the hypothalamus. During the second half, placental lactogens (PLs) take ...
de Bakker J M - - 1999
OBJECTIVES: The aim of the study was to elucidate the mechanism of double component action potentials in the posterior approach to the atrioventricular (AV) junctional area. BACKGROUND: Double component action potentials are often associated with activation delay and therefore might be a marker of the location of the so-called slow ...
Dufour D L - - 1999
BACKGROUND: This study examined the components of energy balance in poor, free-living pregnant women living in an urban setting of a developing country. OBJECTIVES: We tested the following hypotheses: 1) energy intake increases in pregnancy and is greater than when nonpregnant and nonlactating (NPNL), 2) basal metabolic rate (BMR) increases ...
von Sydow K - - 1999
The aim of this study is to gain a systematic overview of all existing studies on parental sexuality during pregnancy and the postpartum period (months 1-6). Investigations of psychological and medical data banks and cross-references revealed 59 relevant studies published in English or German between 1950 and 1996. These primary ...
Sharma V K - - 1999
This paper reports study of day-to-day instability in the locomotor activity rhythm of the nocturnal field mouse Mus booduga. The free-running period (tau) of this rhythm was estimated in constant darkness in n = 347 adult male mice. The "onset" and "offset" of locomotor activity rhythm were used as phase ...
Merlet I - - 1999
OBJECTIVE: In order to validate dipole-modeling results, we compared dipole localizations with the distribution of intracerebral potentials occurring simultaneously with scalp EEG paroxysms. METHODS: Firstly, scalp EEGs were recorded from 11 patients. Dipole sources were estimated on averaged spikes and projected on 3D-MRIs. Secondly, stereoelectroencephalography (SEEG) was recorded from implanted ...
Chen G Y - - 1999
We have compared measures of heart rate variability (HRV) in 15 women in late pregnancy before and 3 months after delivery and in 20 non-pregnant controls, to study the effect of aortocaval compression on autonomic nervous activity. Normalized high-frequency power was used as an index of vagal activity and the ...
Favre J - - 1999
OBJECTIVE: Intraoperative analysis of microrecording data during pallidotomy often depends on subjective interpretation of the oscilloscope signal, especially during the analysis of phasic activity. The goals of this project were: 1) to develop an inexpensive system that allowed on-line, objective characterization of single-unit pallidal discharges, and 2) to have objective ...
Lee Y - - 1999
PRL in the rat exerts its luteotropic action during the first half of pregnancy. After midpregnancy, placental lactogens (PLs) take the place of PRL to stimulate progesterone secretion from the corpus luteum. Simultaneously, PLs trigger a negative feedback on PRL secretion. However, the brain mechanisms for the negative feedback induced ...
Wellings R P - - 1999
OBJECTIVES: Endothelial monocyte-activating polypeptide-2 (EMAP-2) is a novel protein that demonstrates potent proinflammatory activity in vivo and in vitro. The purpose of this study was to investigate the expression of EMAP-2 in normal pregnancy and in pregnancies complicated with preeclampsia and to test the hypothesis that EMAP-2 is a causative ...
Watanabe C - - 1999
Pregnant ICR mice were subcutaneously injected with 0,5, or 3x3 mg Hg/kg of methylmercury (MeHg) on days 12,13, and 14(G12-14) of gestation and were sacrificed on G17. Activity of selenoenzymes, including glutathione peroxidase (GPx) and 5'- or 5-iodothyronine deiodinases (5'-DI, 5-DI), was determined in fetal brain and placenta. MeHg did ...
Minakami H - - 1999
BACKGROUND/AIMS: Decreased antithrombin III (AT-III) activity and/or thrombocytopenia associated with an elevated serum level of aspartate aminotransferase in late pregnancy can threaten the lives of both the mother and the fetus. We investigated whether antenatal declines in AT-III activity and the platelet count occur in late twin pregnancy and whether ...
Seslija D - - 1999
Relationship of superoxide dismutase and catalase activities and aging were tested using bean weevil lines selected for postponed senescence. The beetles of different age (young and old) and mating status (virgin and mated) from the extended longevity lines were compared with their counterparts derived from the short-lived lines for activities ...
Curtis K M - - 1999
The Ontario Farm Family Health Study provided data for examination of the effects of pesticide exposure on time to pregnancy. In this retrospective cohort study of farm couples in Ontario, Canada, the farm operator, husband, and wife completed questionnaires during 1991-1992. We asked about pesticides used on the farm and ...
Peleg L - - 1999
Activity levels of total and placental alkaline phosphatase (AP) were determined in maternal serum and neutrophils of normal and Down syndrome pregnancies. The placental iso-enzyme (PAP) was identified by its relative stability to urea and heat. Significant increase in the activity of all iso-enzymes across gestational stages was observed in ...
Chapple I L - - 1999
The current study aimed to apply a novel enhanced chemiluminescence assay in the analysis of gingival crevicular fluid (GCF) alkaline phosphatase (ALP) levels from patients with untreated adult periodontitis. 3666 sites in 25 patients were monitored prior to and after attachment loss was detected with a Florida disc probe. Parameters ...
Hill B T - - 1999
The antitumour activity of vinflunine, 20',20'-dichloro-3',4'-dihydrovinorelbine, a fluorinated Vinca alkaloid obtained by reaction in superacid media, was evaluated in comparison with vinorelbine against a series of subcutaneously-implanted human tumour xenografts. The tumours studied were established from bladder (BXF1299), pancreas (PAXF546), kidney (RXF944LX), colon (DLD-1, HT-29, TC37), central nervous system (SF-295), ...
Vargiu C - - 1999
Agmatine has been proposed as the physiological ligand for the imidazoline receptors. It is not known whether it is also involved in the homoeostasis of intracellular polyamine content. To show whether this is the case, we have studied the effect of agmatine on rat liver cells, under both periportal and ...
Pucher J J - - 1999
This investigation was undertaken to determine if an ionic toothbrush was effective at removing plaque and reducing gingivitis in patients wearing orthodontic appliances. Fifty-two orthodontic patients were randomly assigned to one of two groups and completed a six-week double-blind study. Group 1 consisted of the test group using the ionic ...
Jonasson Aino - - 1999
The objective of this study was to elucidate the mechanisms involved in the formation of a functional decidua. The concentrations of plasminogen activators and plasminogen activator inhibitors in intrauterine decidua from normal and ectopic pregnancies were compared. Intrauterine decidua was obtained by curettage from 17 women with ectopic pregnancies and ...
Oulton M - - 1999
Conversion of heavy-aggregate alveolar surfactant (H) to a light-aggregate, nonsurface active form (L) is believed to involve the activity of an enzyme, namely, convertase. This conversion can be reproduced in vitro by the surface-area cycling technique. The purpose of the present study was to use this technique to investigate the ...
Bourguignon C - - 1998
Neuronal differentiation in the vertebrate nervous system is temporally and spatially controlled by mechanisms which are largely unknown. Here we investigate the role of XBF-1, an anterior neural plate-specific winged helix transcription factor, in controlling the pattern of neurogenesis in Xenopus ectoderm. We show that, in the anterior neural plate ...
Mahaney J - - 1998
During late pregnancy, the rat undergoes massive plasma volume expansion due to cumulative renal sodium retention. In the present study, conducted in virgin, mid- (days 11-13), and late-pregnant (days 18-20) rats, we measured both Na+-K+-ATPase activity (by coupled enzyme assay) and abundance of the alpha-subunits of the Na+-K+-ATPase (by Western ...
Bottini E E Chair of Preventive and Social Pediatrics, University of Rome Tor Vergata, School of Medicine, Italy. - - 1998
Intracellular kinases mediate positive signalling from surface receptors by phosphorylating critical target proteins whereas phosphatases inhibit this process. Differential phosphatase activity at the feto-maternal interface could determine the appropriate relative growth and development on each side of the placenta. The highly polymorphic cytosolic low molecular weight phosphotyrosine-phosphatase (ACP1-cLMWPTPase) has been ...
St-John W M - - 1998
Normal respiration, termed eupnea, is characterized by periodic filling and emptying of the lungs. Eupnea can occur 'automatically' without conscious effort. Such automatic ventilation is controlled by the brainstem respiratory centers of pons and medulla. Following removal of the pons, eupnea is replaced by gasping, marked by brief but maximal ...
Ball D K - - 1998
Connective tissue growth factor (CTGF) is a growth and chemotactic factor for fibroblasts encoded by an immediate early gene that is transcriptionally activated by transforming growth factor ss. Although the primary translational product of the pig CTGF gene is predicted to be of approximate Mr 38 000, pig uterine luminal ...
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