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Results 351 - 400 of 535
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Dark J - - 1996
We tested the hypothesis that continued secretion of gonadal steroids is necessary to suppress hibernation in male golden-mantled ground squirrels in the weeks after the terminal arousal in spring. Juvenile and adult males were gonadectomized or sham gonadectomized 1 wk after the terminal arousal; 64% of castrated and none of ...
Koponen H J - - 1996
In this case report we describe an interaction between clozapine and fluvoxamine in two physically healthy patients meeting the DSM-IIIR criteria for paranoid schizophrenia. The substantial rise of clozapine serum levels suggest that caution should be exercised when combining fluvoxamine with clozapine as the clozapine concentration may increase by a ...
Pappas D G - - 1996
Recounted are some, not all, of the most significant contributions to otology. The history of otology has, for the most part, followed the history of medicine: Little was known of otology by the ancient physicians, but their work must be reviewed to appreciate the progress that has been made. Most ...
Muro M - - 1996
To elucidate the mechanism of the resting-active cycles (RAC) of fetal heart rates (FHR), in the resting and non-resting phases (RP and NRP), 24-h FHR recordings were made on 16 normal full-term pregnant women. RP, NRP, RAC-1 (NRP-NRP cycle), and RAC-2 (RP-RP cycle) were defined based on the criteria of ...
Rejmankova E - - 1995
Remote sensing is particularly helpful for assessing the location and extent of vegetation formations, such as herbaceous wetlands, that are difficult to examine on the ground. Marshes that are sparsely populated with emergent macrophytes and dense cyanobacterial mats have previously been identified as very productive Anopheles albimanus larval habitats. This ...
Balogun J A - - 1995
The Biomechanical Ankle Platform System (BAPS) is widely used in medical rehabilitation; however, the cardiovascular demand and subjective acceptability of the BAPS rehabilitation exercise are presently not documented. The purpose of this study was to evaluate the pattern and magnitude of the cardiovascular adjustments and rating of perceived exertion (RPE) ...
Kropf D L - - 1995
The role of cytosolic pH (pHc) in establishment and expression of developmental polarity was examined in zygotes of the brown alga Pelvetia. pHc was measured and manipulated at specific developmental stages during the first zygotic cell cycle. pHc was measured using pH-sensitive microelectrodes and by confocal ratio imaging of dextran-conjugated ...
Baubin M A - - 1995
We evaluated the force-depth compression characteristics of 8 different CPR manikins during mechanical cardiopulmonary resuscitation by a thumper. The force required to compress the manikin's thorax of 1, 2, 3, 4 and 5 cm was measured. It ranged between 6.3 and 14 kp at a depth of 1 cm, 11.6-30 ...
Ohtsuka Y - - 1995
Although the prevalence of serum precipitating antibodies for farmer's lung disease (FLD) is lower in smokers than in nonsmokers and FLD predominates in nonsmokers, the affects of smoking on the clinical course of the disease is not known. We compared the clinical findings and the prognosis between 12 smokers (SM-FLD) ...
Devaraj V R - - 1995
Proteinase inhibitory activity in ten different varieties of Dolichos lablab perpureus. L. was determined. All the varieties tested exhibited appreciable level of proteinase inhibitory activity (PIA). The trypsin inhibitory activity (TIA) (Mean: 20170 TIU/g) was relatively higher than the chymotrypsin inhibitory activity (CIA) (Mean: 15380 CIU/g). Effect of temperature and ...
Spaldin V - - 1995
Oxidative metabolism of the cognition activator tacrine (1,2,3,4-tetrahydro-9-aminoacridine) is thought to be catalyzed by cytochrome P4501A2 (CYP1A2). In this study, the use of tacrine as a specific substrate to measure CYP1A2 activity in vitro was investigated. Tacrine metabolism was assessed in 16 human liver microsomal samples. Initially, the percentage conversion ...
Isom T L - - 1995
Root thickness in the mesial canals of lower first and second molars was compared before and after flaring by using a muffle system. Gates Glidden burs or M-Series Canal Openers were used with either a straight up-and-down motion or with an anticurvature motion. It was found that Gates Glidden burs ...
Dennison Z - - 1995
The kindling effect is generally thought to be highly persistent and possibly permanent, but little direct evidence is available to support this idea. Retention of amygdala kindling was examined after a 12-wk interval in groups of rats that had been electrically kindled to different seizure stages (stages 1, 3, or ...
Waldron E M EM - - 1995
As musicians occasionally report that their dextral facility is improved by recent exercise, it was hypothesized that manual dexterity would be influenced by a task requiring exertion. Before and after exertion on the Harvard Step Test, the experimental group's (n = 25) manual dexterity was tested on a grooved peg ...
Middlekauff H R - - 1995
BACKGROUND: The sympathetic nervous system has been implicated in the circadian pattern of myocardial infarction and sudden death. It has been postulated that sympathetic nerve activity is higher in the morning than at other times of the day and that this increase reflects an endogenous circadian pattern or is triggered ...
Cabrini D A - - 1995
1. The mechanisms underlying bradykinin (BK)-mediated contractions in strips of guinea-pig gallbladder (GPG) were examined by use of selective bradykinin (BK) receptor agonists and antagonists. 2. Addition of BK and related kinins (0.1 pM-10 microM) after 2 h of equilibration of the preparation caused graded contractions characterized by two distinct ...
Tangugsorn V - - 1995
A comprehensive cephalometric analysis of uvulo-glossopharyngeal morphology in 100 patients with obstructive sleep apnoea (OSA) and 36 controls was performed. The aberrations in OSA patients included: 1. Increased length, thickness, and sagittal area of soft palate (PM-U; SPT; SPA: P < 0.001) with a more upright position (NL/PM-U: P < ...
Gandhi V - - 1995
Previous in vitro investigations demonstrated that human leukemia cells, when incubated with hematopoietic growth factors such as granulocyte-colony-stimulating factor (G-CSF), augment the accumulation of the triphosphate 1-beta-D-arabinofuranosylcytosine (ara-C cytarabine). To test whether G-CSF infusion prior to ara-C infusion would biologically modulate the accumulation of ara-9-beta-D-arabinofuranosylcytosine 5'-triphosphate (ara-CTP) and other ara ...
Lamm L C - - 1995
OBJECTIVE: To determine on a state by state, province by province basis what diagnostic and treatment procedures are allowed by statute in the various practice acts. DESIGN: A survey administered by mail. SUBJECTS: All state and provincial licensing boards. RESULTS: The response rate to the survey was 90%. More than ...
Tanaka J - - 1995
BASTA is a herbicide containing glufosinate ammonium 18.5% and a surface-active agent. There were six fatalities in 34 cases of glufosinate ammonium poisoning reported by the Japan Poison Information Center. To evaluate efficacy in the removal of glufosinate ammonium from the blood, two bottles were prepared containing 600 mL of ...
Sasaki Y - - 1995
In the present study, an attempt was made to determine the precise pharmacokinetics of 7-ethyl-10-[4-(1-piperidino)-1-piperidino]carbonyloxycamptothecin (CPT-11) and its active metabolite, 7-ethyl-10-hydroxycamptothecin (SN-38). The relationship between pharmacokinetic parameters and pharmacodynamic effects was also investigated to elucidate the cause of interpatient variation in side effects. Thirty-six patients entered the study. CPT-11, 100 ...
Doust T - - 1994
For many years the regulation of veterinary chemicals has been a State responsibility. The clearance process involves the evaluation of a wide range of aspects for each candidate product including quality, efficacy and safety. In recent years the clearance process has been governed by the Commonwealth Agricultural and Veterinary Chemicals ...
Virga G - - 1994
Creatinine clearance (CRCL) was studied in 20 patients on CAPD in relation to the dwell times (DT), in order to establish a personalised dialysis schedule with the best clearance (CL) results, while respecting the patient's life-style. By calculating the CRCL from the two exchanges with dwell-times of 4 and 8 ...
de Kretser D M - - 1994
To determine whether the human term placenta contains inhibin, activin, and follistatin, placental homogenates from normal placentae were subjected to several fractionation procedures: 1) dye affinity chromatography; 2) hydrophobic interaction chromatography using phenyl sepharose; 3) gel filtration under acid conditions; 4) reversed phase-high pressure liquid chromatography (RP-HPLC); and 5) preparative ...
Churchill D R - - 1994
A total of 48 adults were tested in 24 separate pairs either during the morning (10:00 A.M.) or evening (10:00 P.M.). One member of each pair was instructed to record (write) impressions and descriptions of 8 different art pieces (5 min. each). At the same time the other member of ...
Engeler C E - - 1994
RATIONALE AND OBJECTIVES: Easy dislodgment and a pneumothorax rate of up to 50% have been reported with the use of mammographic hookwires for radiologic guidance in thoracoscopic surgery. An alternative design is described and preliminary in vitro results are reported. METHODS: The new design is based on the T-fastener used ...
Le Sueur D - - 1993
Laboratory assessment of the residual efficacy of lambda-cyhalothrin (Icon) 10% AI against Anopheles arabiensis and Cimex lectularius was carried out. The insecticide was applied to daub substrates, simulating the wall surface of houses from 3 areas within the endemic malaria area of Natal, South Africa. Variability in residual efficacy was ...
Tan N H - - 1993
1. The biological properties of venoms from juvenile and adult common tiger snakes (Notechis scutatus) were compared. 2. The lethality, procoagulant activity and enzymatic activities of the juvenile venom were not substantially different from those of the adult venom. 3. Electrophoretic studies, however, indicated some minor differences in the protein ...
Chang Y C - - 1993
The solvent accessibility of the four tryptophans of rabbit skeletal muscle myosin rod was investigated using steady-state and time-resolved fluorescence quenching by iodide, acrylamide, and cesium. The quenching by iodide and acrylamide was biphasic; the discrete, long lifetime component was quenched with bimolecular collision constants (kq) of 1 x 10(9) ...
Nakagawa Y - - 1993
1. Diflubenzuron and polyoxin D clearly inhibited the incorporation of [3H]-N-acetylglucosamine ([3H]NAGA) into chitin in the isolated integument from newly molted American cockroaches under the experimental condition. 2. Upon homogenization, or tissue slicing, such an inhibitory effect of diflubenzuron on chitin synthesis totally disappeared, while that of polyoxin D did ...
Roberts G W - - 1993
A non-blinded, randomized, cross-over investigation of the pharmacokinetic interaction between tobramycin and ticarcillin was performed in 18 healthy cystic fibrosis (CF) patients with normal renal function. On consecutive mornings the patients were given either tobramycin intravenously (i.v.) over 3-5 min (TOB phase), or tobramycin i.v. over 3-5 min followed immediately ...
Reilly T - - 1993
The influence of negative air ions on rectal temperature (Tr), heart rate (HR), oxygen uptake (VO2) and ventilation (VE) was examined in male subjects (n = 8) at rest and during two successive exercise bouts of 90 W and 180 W, each for 20 min on a cycle ergometer. Exposures ...
Weiss G - - 1993
The hypothalamic-pituitary adrenal axis (HPAA) is activated during kindled seizures and the circadian changes in this axis may contribute to the circadian variation in the kindling rate. Changes in the rate of seizure development were examined in rats that were amygdala kindled in the a.m., at midday and in the ...
McCarthy J E - - 1993
Postsplenectomy septic sequelae may be fatal, but the mechanisms are unclear. We hypothesized that peritoneal macrophage (PM phi) antimicrobial function is abnormal following splenectomy and that this may predispose to increased mortality from the fungal pathogen Candida albicans. Study 1 (in vivo): female CD-1 mice were randomized into control (C), ...
Seligson D - - 1993
Aminoglycoside-impregnated polymethylmethacrylate beads, which are used to deliver antibiotic directly to infected sites in the musculoskeletal system, are available as a manufactured product or they can be mold-made by a pharmacy or hand-rolled by the orthopaedist in the operating suite. We investigated the leaching of antibiotic from each of these ...
Canepari P - - 1993
Peptidoglycan synthesis and its fine chemical composition were studied in dividing and in non-dividing Klebsiella pneumoniae cocci and compared with rods. The beta-lactam mecillinam, a specific inhibitor of lateral wall elongation which causes rod-to-sphere transition in rods, showed 50% inhibition of the peptidoglycan in normal rods of the parent Mir ...
Lothman E W - - 1993
Kindling is a widely used model of epilepsy. While intriguing hypotheses have recently emerged about how kindling occurs, the mechanisms behind kindling remain to be elucidated. In order to test whether certain anatomical changes that have been detected in the brains of animals that have completed kindling are necessary for ...
Yuen H K - - 1993
A single-subject study with an ABAB design investigated an adaptation of a work activity through the purposeful use of an additional template to improve productivity for a woman with cortical blindness resulting from anoxic brain damage. The activity required the subject to outline brackets (as parts of a handi-rack woodwork ...
Hickey M S - - 1993
To investigate the influence of time of day on sympathoadrenal and pressor reactivity during exercise, eight trained men [age, mean (SD), 24 (0.5) years; maximal oxygen uptake (VO2max), 4.7 l.min-1] performed bouts of static (ST) and dynamic (DYN) exercise at 0600-0800 hours (AM) and at 1600-1800 hours (PM). The ST ...
Reilly T - - 1992
Previous work has demonstrated that exercise performance varies with time of day. The aim of this study was to investigate the influence of time of day on measures of anaerobic power and anaerobic capacity. Twelve male subjects, aged 18-22 years, performed a stair run test, a standing broad jump and ...
Judge W Q WQ - - 1992
The level of a board of directors' involvement in strategic decisions can be viewed as an institutional response or as a strategic adaptation to external pressures for greater board involvement. We examined the antecedents and effects of board involvement from both the institutional and strategic choice perspectives. Data obtained from ...
Jarjour N N - - 1992
Although the mechanisms of nocturnal worsening of pulmonary function in asthmatics have not been entirely established, airway inflammation is felt to be a major factor in disease severity. Consequently, to determine whether changes in bronchoalveolar lavage (BAL) fluid cellular components and their functions are related to nocturnal airway obstruction, we ...
Saura-Calixto F - - 1992
Resistant starch (RS) was determined in deproteinized and non-deproteinized whole and milled beans (Phaseolus vulgaris) after cooking and freezing. The highest RS values were obtained in the whole bean preparations (3.7-8.7%). Milled and milled and deproteinized beans presented lower RS contents (1.64% and 0.91%, respectively). The results suggest that the ...
Schumacher M J - - 1992
To study biochemical differences between venom from individual honeybees, venom sacs from 103 European (EU) bees and 92 Africanized bees representing 12 different colonies were dissected, and the dry weight (DW) of venom from each bee was determined. Venom from each of these bees was studied with isoelectric focusing and ...
al-Omari M A - - 1992
A total of 300 simulated root canals of various angles and positions of curvature in clear resin blocks were prepared by hand using either K-files, K-Flex files, Flexofiles, Flex-R files, Hedstrom files or Unifiles. Each file type was used to prepare 50 canals employing a linear filing motion and an ...
Baker C H - - 1992
Endotoxin decreases arteriolar sensitivity to norepinephrine and sympathetic neural activity, but vasopressin sensitivity is increased. Vascular responses to the renin-angiotensin system may also be altered by endotoxin (ENDT). Reactivity of cremaster muscle microvessels of pentobarbital anesthetized Wistar rats was studied using videomicroscopy. Escherichia coli endotoxin (6 mg/kg) was infused i.v. ...
Gandhi V - - 1992
Our previous work has shown that incubation of K562 cells or lymphocytes from patients with advanced chronic lymphocytic leukemia (CLL) with arabinosyl-2-fluoroadenine (F-ara-A) potentiates the rate of arabinosylcytosine 5'-triphosphate (ara-CTP) synthesis during subsequent treatment with arabinosylcytosine (ara-C). To test the biochemical modulation of ara-CTP in a clinical setting, we designed ...
Ayoubi S - - 1992
Twenty-five human placentas were studied for suitability in a microvascular exercise. The size and useful length of vessels were measured, and different microvascular anastomoses were performed. The size of the placenta vessels compared well with reported sizes of intracranial arteries. We suggest the use of placenta by neurosurgeons as complementary ...
Kreis W - - 1992
Two phenotypes for 1-B-D-arabinofuranosylcytosine (ara-C) deamination corresponding to a ratio of distribution for "slow" (ratio, less than or equal to 14) vs "fast" (ratio, greater than 14) deaminators of 70%:30%, have been determined on the basis of studies on plasma ratios of 1-B-D-arabinofuranosyluracil/ara-C (ara-U/ara-C) in 56 subjects treated with high-dose ...
Barker J G - - 1992
There is much research to support the claim that the penile plethysmograph is a reliable and valid method of objectively measuring and assessing the erectile response in male sex offenders. The authors have reviewed some of the most recent literature dealing with this subject. The conclusion is that although the ...
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