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Results 351 - 400 of 479
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Ramsay R E - - 1990
Free and total carbamazepine (CBZ) and carbamazepine-epoxide (CBZ-EP) plasma levels were obtained on 113 patients with epilepsy (18-61 years old) controlled on either monotherapy or coadministration with either phenobarbital (PB), phenytoin (PHT), valproic acid (VPA), or all three. A subset of patients were administered tetradeuterium labeled CBZ to evaluate the ...
Zellner J L - - 1990
Extravascular lung water (EVLW) can be measured using the double indicator dilution technique (DD). However, because this method is highly invasive and complicated, its clinical used has been limited. In theory, changes in thoracic conductivity, or bioimpedance (BI), can reflect changes in EVLW. However, past studies were unable to directly ...
Wöltgens J H - - 1990
During a cariogenic attack at the enamel surface a white spot can be formed (initiation) or disappear (regression) or remain the same (stabilisation). In the present clinical study it was shown that at least regression and stabilisation depend significantly on the posteruptive age and may be associated therefore with changes ...
Kandarkar S V - - 1990
In this study initially a precancerous condition, leukoplakia, was develop at 6 weeks treatment of DMBA whereas in the animals treated both DMBA + Vit. A, leukoplakia was seen at 10 weeks followed by papilloma or nodules at 12 weeks. Tumours induced by DMBA were more in number than DMBA ...
Symons E - - 1991
We have previously shown that the tilt aftereffect (TAE) appears to respond to changes in central dopaminergic function. In this study, the TAE was investigated during the preovulatory and the premenstrual phases of the menstrual cycle. Results in the preovulatory phase mimicked those previously found associated with increased dopaminergic function, ...
Condeelis J - - 1990
In this work we evaluate the cortical expansion model for amoeboid chemotaxis with regard to new information about molecular events in the cytoskeleton following chemotactic stimulation of Dictyostelium amoebae. A rapid upshift in the concentration of chemoattractant can be used to synchronize the motile behavior of a large population of ...
Van Gaal L F - - 1989
In an attempt to explain reverse T3 changes during protein supplemented semistarvation, reverse T3 (rT3) and T3 changes have been evaluated in regard of bw changes and changes of nutrient combustion. Significant (p less than 0.001) bw and body mass decrease was characterized by a significant (p less than 0.01) ...
Risey J - - 1989
The results of two procedures for measuring the loudness level of tinnitus will be presented. The traditional procedure yielded significantly smaller loudness matches, when expressed in decibel sensation level (i.e., dB SL), than did the Goodwin procedure. The Goodwin procedure is more sensitive to pharmacologically induced changes in tinnitus loudness ...
Faurschou P - - 1989
When turpentine was instilled into the right pleural cavity in rabbits a pleural effusion developed in half of the animals, with a low pH, low glucose concentration, high lactic dehydrogenase activity and the constant presence of rheumatoid arthritis cells in the affected pleural cavity. The biochemical values in the pleural ...
Spicer L J - - 1989
High performance liquid chromatography was utilized to characterize changes in the content of various steroids in adrenal glands with time postpartum. Adrenal glands were obtained from 32 beef cows on either days, 7, 14, 28, 42 or 56 after parturition (n = 6-8/group). Of the major glucocorticoids, only cortisone significantly ...
Schoning P - - 1989
Frost-bite lesions were produced in five Hanford Miniature Swine exposed to - 75 degrees C air for 1, 3, 5, 10, or 20 min. Biopsies were taken at 0, 3, 6, 12, 24, and 48 h, and 1 and 2 weeks. Two hundred slides were evaluated microscopically: superficial and deep ...
Rusin M M - - 1989
The status of the blood-retinal barrier (BRB) in carriers of choroideremia and X-linked retinitis pigmentosa (XLRP) was determined by vitreous fluorophotometry (VF) and compared with that in female control subjects. Electroretinographic (ERG) amplitudes were measured to determine the overall functional integrity of retinal rods and cones. Comparison of the VF ...
Egelberg J - - 1989
The purpose of this report was to evaluate the magnitude of the regression towards the mean (RTM) relative to the observed changes in probing measurements following periodontal therapy in 2 groups of patients. Regression lines were calculated for observed changes in probing depths and probing attachment levels related to the ...
Omokawa S - - 1989
The effect of different surface areas on cellular, humoral, and hemodynamic changes and on plasma separation performance were investigated. Membrane plasmapheresis, consisting of plasma separation and on-line reinfusion, was carried out on dogs for 3 h with 0.6 and 0.3-m2 polyethylene (PE) and polyvinyl alcohol (PVA) modules. The plasma separation ...
Lindberg M - - 1989
A transient epidermal hyperplasia was induced in guinea pig epidermis by a single application of n-hexadecane. The epidermal response was analysed by light microscopy and by energy dispersive X-ray microanalysis (EDX). The epidermal hyperplasia reached a maximum between 96 and 192 h after the application. The hyperplastic response was associated ...
Carter J W - - 1989
Exercise at a heart rate corresponding to 30% VO2max for 15 min was associated with an increase in the volume of bleeding time blood from a mean of 133 microliters before exercise to a mean of 218 microliters during and immediately after the exercise. There was similarly an increase in ...
Markiewicz A - - 1989
The aim of the present study was to investigate the possible existence of rhythmicity of some morphological structures of the duodenum [correction of jejunum] in man. The height of intestinal villi was found to vary significantly during the 24 h time span, being higher during the day than during the ...
Rogan M T - - 1989
During the first 4 days following infection, early tegumentary changes are confined to the protoscolex soma of Echinococcus granulosus, the thick glycocalyx being lost and the blunt elevations, flattened. The Golgi complexes within the tegumentary cytons produce T2 vesicles that increase in number in the tegument from days 4 to ...
Sarles H - - 1989
Acute pancreatitis is not the cause but may be a complication of chronic pancreatitis. Different forms of chronic pancreatitis are described. The most frequent type in all climates, chronic calcifying pancreatitis, has different causes but similar pathological changes. It is a lithiasis in which a new family of molecules. PSP, ...
Scott R T - - 1988
Endometrial biopsy specimens (n = 62) were evaluated by five pathologists to assess the effect of interobserver variation on histologic dating of the endometrium. The potential effect of this variation on the diagnosis of luteal phase defects (LPDs) and resulting clinical management was also determined. Mean (+/- standard error) interobserver ...
Gentile B J - - 1988
We characterized the in vivo mechanical properties of segments of upper descending thoracic aorta (UDTA) in terms of volume distensibility, which was derived from measurements of pulsatile intravascular pressure, inner wall radius, and length changes. Data for this analysis were obtained from six dogs at rest and during moderate treadmill ...
Thoelke M S - - 1988
In Bacillus subtilis, addition of chemotactic attractant causes an immediate change in distribution of methyl groups on methyl-accepting chemotaxis proteins (MCPs), whereas in Escherichia coli, it causes changes that occur throughout the adaptation period. Thus, methylation changes in B. subtilis are probably related to excitation, not adaptation. If labeled cells ...
Sok???? W - - 1988
The uptake rate of phenol by washed cells of Pseudomonas putidagrown on phenol in fermenter in an un steady state, caused by the step increase of dilution rate and/or phenol concentration in the feed, was studied. The Monod-Haldane type equation was applied to fit the data and the best kinetic ...
Smallwood R H - - 1988
For substances eliminated from blood by the liver, the effect of a change in unbound fraction of drug (fu(b)) on steady state total (Cb) and unbound (Cu(b)) blood concentrations has hitherto only been considered for the two limiting cases, i.e., at the upper and lower extremes of hepatic intrinsic clearance ...
Dennerll T J - - 1988
We assessed the mechanical properties of PC-12 neurites by applying a force with calibrated glass needles and measured resulting changes in neurite length and deflection of the needle. We observed a linear relationship between force and length change that was not affected by multiple distensions and were thus able to ...
Cohen P R - - 1988
Becker's nevus is a benign lesion that may be congenital or acquired, macular or papular, hairless or hypertrichotic. It is most commonly located on the upper trunk of young men. Histologic examination shows characteristic changes, but dermal nevus cells are never present. Bony and soft tissue structural anomalies occur with ...
Labeeuw M - - 1988
The spontaneous changes in renal handling of uric acid, the consequences of methyclothiazide (M) and of a combination of M with three doses of triamterene (25, 50, 75 mg) were assessed in eight normal men, in a ten-week placebo controlled, double-blind study. In untreated subjects, significant correlations were found between ...
Wienbeck M - - 1988
The actions of sennosides on colonic motility are incompletely understood. We therefore studied the effects of sennosides A + B on colonic myoelectric activity and transit of a radio-opaque meal in 7 conscious cats. Intraduodenal application of sennosides (2 mg/kg body weight) accelerated the half colon transit time from 60 ...
Brucher J M - - 1988
The main data concerning the pathophysiology of cerebral ischaemia are reviewed and subdivided into five chapters: elementary cellular changes, elementary circulatory disturbances, pathology at the cellular and tissular levels, causes of ischaemia, and topography of ischaemic brain lesions. Local, regional and general factors are discussed and the prominent role played ...
Bovet J - - 1988
Osgood's Semantic Differential was applied to a group of 35 neurotic patients at initial and final stage of individual psychoanalytical psychotherapy. When compared to 'normal' subjects who had not undergone treatment but were examined under the same conditions, neurotic subjects showed, between test and retest, more conspicuous semantic changes, several ...
James P S - - 1987
1. Lysine and alanine uptake by pig enterocytes has been measured in piglet mid intestine both during normal development and 3 days after injection of dexamethasone and epidermal growth factor (EGF) into 3-day-old animals. 2. Alanine uptake measured in the presence of sodium increased markedly during the first 4 weeks ...
Panagia V - - 1987
To evaluate changes in heart sarcolemmal phosphatidylethanolamine (PE) N-methylation, left ventricular hypertrophy was induced in rabbits by banding the abdominal aorta for 4, 8, 14, and 22 wk. The degree of cardiac hypertrophy did not change over the period of time studied. Three catalytic sites involved in the sequential methyl ...
Behera B K - - 1987
The effects of a sugar mill effluent on respiration of rice (Oryza sativa L.c.v. Mushoori) seedlings have been investigated. Each experiment consisted of two parts, the effect of various concentrations of the effluent and the time-dependent changes induced by the undiluted effluent. A marked increase in the rate of respiration ...
Fisher S K - - 1987
Tonic accommodation and tonic vergence were measured in symptomatic and asymptomatic subjects before, during, and after 45 min of binocular reading at near (5 D). Reading produced significant increases in both tonic levels, with the magnitude of change being similar in the two groups. After reading, both groups exhibited rapid ...
Fletcher J P - - 1987
Serum transferrin and prealbumin levels were determined at intervals of 3 to 4 days in 16 patients requiring nutritional support. Caloric and nitrogen intake were measured and nitrogen balance calculated. There were 117 intervals available for analysis. A mean decrease in transferrin of 12.95 mg/dl was associated with a mean ...
Morgan P M - - 1987
This study was undertaken to determine whether cyclical changes in the endometrium of the rhesus monkey could be observed by using ultrasound. Three indices of endometrial size were examined: the antero-posterior (or ventro-dorsal), longitudinal, and transverse diameters. Changes in the ultrasonic reflectivity of the endometrium were also assessed. We have ...
Girard D M - - 1987
Certain reproductive parameters in animals are particularly sensitive endpoints in toxicological experiments. Measured changes in one of these endpoints, estrous cycling in the rat, can reflect aberration in the underlying hormonal environment or end organ response. This article proposes the use of Markov chains to measure subtle changes in estrous ...
Wolf K S - - 1987
Changes in tonic accommodation and tonic vergence were monitored before, during and immediately after a 45 min period of reading adult level text displayed on either a computer monitor or hard copy at 20 cm under binocular viewing conditions. Both tonic accommodation and tonic vergence gradually increased during the reading ...
Loree S W - - 1986
A technique is proposed that applies variance analysis to the aged trial balance to break down the total change in reserve requirement, from one balance sheet date to the next, into a volume variance, a composition variance, and a rate variance. This breakdown allows the accountant or auditor to focus ...
Panzetta G - - 1986
Nine patients intolerant to acetate hemodialysis were treated with biofiltration. This consisted in a 4-h acetate hemodialysis during which an additional 2 liters of ultrafiltrate were replaced by a bicarbonate solution (100 mEq/l). Hypotensive episodes disappeared and six out of nine patients were symptom-free during the session. Compared to standard ...
Jakobsen C J - - 1986
Intravenous administration sets were changed at varying time intervals between every 24 h and 120 h in 387 patients. The rates of intraluminal contamination of the cannulae and of local inflammation were measured in relation to the time interval between changing sets. There was no correlation between phlebitis and intraluminal ...
Yung M W - - 1986
Extratympanic electrocochleography was performed on three patients following tobramycin injection and ten patients during cisplatin (cis-dichlorodiamine platinum II infusion. The compound eighth nerve action potential and the cochlear microphonic decreased considerably in magnitude up to 45 to 60 minutes after tobramycin injection, followed by a gradual recovery to normal in ...
Ramirez V D - - 1986
We probed the activity of the neural LHRH apparatus by means of push-pull cannulae implanted in the hypothalamus of conscious intact anestrous unrestrained New Zealand White female rabbits raised under natural light. The data revealed that the neuropeptide LHRH is released in a pulsatile manner (one pulse per 46.4 +/- ...
Fleischer A C - - 1986
Pelvic sonograms were performed every 2-3 days in 10 volunteers in order to study changes in thickness and texture that occur in the normal endometrium. A total of 75 sonograms were performed. The accuracy of sonographic estimates of endometrial thickness was also evaluated in eight patients who underwent hysterectomy for ...
Caraceni T A - - 1986
Some aspects of the problems of long-term L-dopa treatment syndrome are reviewed, with special attention to the changes in response to treatment with dopaminergic agents, specifically end-of-dose deterioration, the on-off phenomenon and hyperkinesia. The various hypotheses for interpreting these are presented, with particular stress on changes in the function of ...
Yano T - - 1986
The threshold for proboscis extension to sucrose stimulus of a single sugar receptor on different labellar hairs was elevated by raising blowflies on higher concentrations of sucrose. The reaction time was defined as the duration from stimulus of a single sugar receptor in the LL-type hair until occurrence of proboscis ...
Gorse G J - - 1985
Prescribing physicians at our institution were required to obtain approval from the Section of Infectious Disease for use of gentamicin sulfate and other aminoglycosides. We studied the effect of removing gentamicin from the list of restricted antibiotics, noting that gentamicin usage increased while tobramycin sulfate usage decreased during the six-month ...
Watson P D - - 1985
Experiments were performed to demonstrate that papaverine can increase capillary filtration coefficient, CFC, and to investigate whether this increase could be reversed by isoproterenol, norepinephrine and plasma. The study used the isolated cat hindlimb, perfused at constant flow with a recirculated blood-albumin solution. It was observed that papaverine increased CFC ...
Adair T H - - 1985
This paper will focus on physiological evidence for a lymph node concentrating-diluting mechanism. The mechanism is based on the finding that the protein concentration of efferent lymph leaving the node will change in the direction required to establish equilibrium of the Starling forces acting across the blood-lymph barrier of the ...
Carpenter H M - - 1985
The ability of hexachlorobenzene (HCB) to cause changes in the isozymic composition of hepatic monooxygenases of Japanese quail was assessed. HCB-induced changes in the relative concentrations of benzo[a]pyrene metabolites produced in vitro were apparent. HCB treatment also resulted in changes in the responsiveness of ethoxycoumarin O-deethylase (ECOD) and ethoxyresorufin O-deethylase ...
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