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Results 201 - 250 of 271
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Stratta P - - 1989
The possibility of evaluating the ratio between aldosterone and atrial natriuretic peptide (ANP) instead of the two hormones by themselves in studying sodium handling in normal pregnancy and in preeclampsia in the steady state and following albumin infusion was examined in this study. In 32 normal pregnancies monitored monthly, the ...
Addy M - - 1989
For antimicrobials such as chlorhexidine antiplaque activity appears due to persistence of considerable antimicrobial action in the mouth. The substantivity of antimicrobial compounds can be evaluated by measuring the magnitude and duration of salivary bacterial counts following a single exposure. Such data has been shown to correlate with plaque inhibitory ...
Durbin P W - - 1989
The linear tetracarboxycatecholate ligand, 3,4,3-LICAM(C) (N1,N5,N10,N14-tetrakis(2,3-dihydroxy-4-carboxybenzoyl-tetraaza tet radecane, tetra sodium salt) injected within 1 h after injection of Pu(IV) citrate, removes about the same fraction of Pu from animals as CaNa3-DTPA (diethylenetriaminepentaacetate, calcium, sodium salt) but removes less inhaled Pu than CaNa3-DTPA and leaves a Pu residue in the renal ...
Tupker R A - - 1989
The rôle of different factors in the susceptibility of the skin to weak irritants was studied by means of multiple linear regression models. The skin of 37 healthy subjects was exposed to a solution of sodium lauryl sulphate of low molarity 2 x daily for 4 days. The condition of ...
Mehta A R - - 1989
Early pregnancy factor (EPF) is a pregnancy-associated protein detected in the maternal serum by using the rosette inhibition assay and by evaluating the suppression of adoptive transfer of contact sensitivity. Because of its inhibitory effect on the functional reactivity of immunocompetent cells, EPF is thought to be involved in immunoregulation ...
Valdés E - - 1989
Fillets of a hake, Merluccius merluccius hubbsi, were exposed to 2 kGy, 6 kGy, and 10 kGy of ionizing radIation from a Cobalt 60 source and were subsequently stored frozen at 0 degree C. Both these irradiated samples and control samples were examined to determine their bacterial counts and organoleptic ...
Brown M A - - 1988
To examine the short-term regulation of sodium excretion, plasma volume, and the renin-aldosterone system in pregnancy, women in their first pregnancy received either a high-salt (HS) (250 mmol/day) or a low-salt (LS) (20 mmol/day) diet for 7 days during the second and third trimester and after delivery (total 213 studies). ...
Shopova M - - 1988
The influence of the polarity of the medium on the efficiency of Type I and Type II photosensitization as carried out by hematoporphyrin and its derivative Photofrin II was studied by EPR techniques. Our results suggest that porphyrin aggregates do not participate as such in the photosensitized processes. Thus, the ...
Milligan S R - - 1988
Vascular permeability in the uterus and other tissues of mice was assessed using the accumulation of 125I-human serum albumin 30 min after its intravenous injection. The anaesthetic agent employed for the 125I-albumin injection differentially affected the estimates of vascular permeability: intraperitoneal (i.p.) tribromoethanol of pentobarbitone sodium produced significantly higher values ...
Brown M A - - 1988
One hundred fifty-eight intravenous saline solution infusions (3 mmol Na per kilogram body weight) were performed in (1) normal primigravid women during the second and third trimesters and post partum, after 1 week of either a high, low, or ad libitum salt intake; (2) normotensive primigravid women during midpregnancy who ...
Brown M A - - 1988
Twelve women in their first 3 months of pregnancy received an i.v. saline load (3 mmol sodium/kg) and a graded infusion of angiotensin II (Ang II; i.e. 4, 8 and 16 ng/kg per min). As controls, twelve comparable pregnant subjects received the saline infusion alone. Eight non-pregnant women underwent both ...
Gallery E D - - 1988
1. Active electrolyte transport was examined in erythrocytes from women in the second and third trimesters of pregnancy and post partum, and compared with that in ovulating women. 2. There was a significant reduction in intracellular sodium ([Na]i) and increase in intracellular potassium ([K]i) in pregnancy with a return towards ...
Atherton J C - - 1988
1. Sodium and water reabsorption were determined in virgin controls and rats at 9 and 20 days of pregnancy during a water diuresis induced and maintained by infusion of 2.5% dextrose and in normally hydrated women during the third trimester and again 2-3 months after delivery. 2. Reabsorption from the ...
Borg K - - 1988
Brown trout, Salmo trutta, were exposed to water containing 0.1 microgram/l 203Hg2+, alone or with potassium ethylxanthate (PEX), sodium isopropylxanthate (SIX), sodium diethyldithiophosphate (SEP), sodium diisopropyldithiophosphate (SIP), sodium dimethyldithiocarbamate (SMC), sodium diethyldithiocarbamate (SEC) or sodium pyridinethione (SPyr), respectively. After 1 week the uptake and distribution of the 203Hg2+ in the ...
Michell A R - - 1988
Sodium preference was examined in three groups of sheep which had all sustained two consecutive pregnancies and lactations on either adequate sodium intakes (group C) or low sodium diets (B and C). Group B received a potassium supplement as well as a low sodium diet during the present experiment. No ...
Gallery E D - - 1987
In this chapter are outlined the many factors involved in the regulation of sodium and volume homeostasis in normal human pregnancy and their interrelationships. New developments concerning the role of sodium/potassium ATPase, atrial natriuretic peptide, arginine vasopressin and angiotensin II as regulatory forces are outlined, together with a review of ...
Illowsky B P - - 1987
Considerable controversy has followed the recent publication of studies indicating that central pontine myelinolysis is caused by rapid correction of hyponatraemia. Alternative suggestions have been that myelinolysis is due to uncorrected hyponatraemia, that it occurs only with over-correction of hyponatraemia or that it is due to coincidental hypoxia. The following ...
Schrier R W - - 1987
With pregnancy, the expansion of plasma and extracellular fluid volume, increased cardiac output, and increased glomerular filtration rate (GFR) and renal blood flow (RBF) are compatible with primary renal sodium and water retention with secondary enlargement of the vascular compartment (overfill hypothesis). Alternatively, a primary enlargement of the vascular compartment ...
Gallery E D - - 1987
Sodium and water retention are normal accompaniments of pregnancy achieved by many significant and complex interrelated alterations in homeostatic forces. Furthermore, potentially harmful derangements in sodium and volume control are found in women with pregnancy-associated hypertension (P-AH, preeclampsia). None of these alterations is completely understood, and many of them appear ...
Barron W M - - 1987
This article reviews alterations in volume and sodium handling during rat pregnancy, noting similarities and contrasts to events in human gestation. Gravid rodents undergo extracellular and plasma volume increases of 50% to 70%, and these changes accompany a marked cumulative sodium retention shared by both dam and fetuses. Pregnancy alters ...
Schindler M - - 1987
Whole rat liver nuclei were reacted with UDP-[14C]galactose in the presence of bovine beta(1----4) galactosyltransferase. The reaction mixture was electrophoresed on a reducing sodium dodecyl sulfate-polyacrylamide gel. Autoradiograms of the gel demonstrated a major labeled broad band migrating with an apparent molecular weight of 65,000-66,000. A number of other less ...
Dzau V J - - 1987
Using specific antibody raised against renal renin, we have documented that the majority of the uterine renin-like activity in gravid and nongravid uteri is immunoreactive renin. To characterize its physiochemical properties, we obtained highly purified uterine renin by two affinity chromatographic steps, pepstatin and antirenin. Uterine renin has a pH ...
Lorenz J M - - 1986
The renal response to volume expansion with sodium chloride or sodium bicarbonate was studied in 15 newborn and 13 adult dogs. Proximal and distal nephron function were estimated using the technique of distal nephron blockade. Fractional sodium reabsorption was 99.0 +/- 0.3% in newborn and 96.6 +/- 0.06% in adult ...
Lazarchick J - - 1986
It has been suggested that the basis for the marked discordance in factor VIII parameters in preeclampsia is the result of proteolysis of the factor VIII procoagulant component (VIII:C) owing to activation of the coagulation system. To investigate this further, levels were compared of factor VIII:C and VIII:C (Ag), the ...
Wong T - - 1986
Active and inactive renin were measured in individual juxtaglomerular apparatus (JGA) and in whole kidney homogenates. The morphology of the JGA was examined in microbiopsy glomerular specimens and in kidneys fixed by arterial perfusion. In rats on high and normal salt intake the total renin content of a single JGA ...
Daniels C R - - 1986
In healthy normotensive pregnancy, a complex functional network develops between the cardiovascular system, the volume and composition of the extracellular fluid and the renin-angiotensin system (RAS). Cardiac output and heart rate increase, but blood pressure is reduced. The kidneys increase in size and both the glomerular filtration rate and renal ...
Joels N - - 1985
The pressor responses to angiotensin II injections of 29, 117 and 468 pmol/kg and infusion at 54 pmol/kg per min were compared in near-term pregnant and matched non-pregnant rabbits. The responses to noradrenaline injections of 652, 2608 and 10 432 pmol/kg and infusion at 1185 pmol/kg per min were similarly ...
Holmes K K - - 1985
To explore of the association of bacterial vaginosis with anaerobic bacterial growth in the vagina, we measured the redox potential (Eh) at the vaginal epithelial surface of women with this syndrome. Among normal women, the value for Eh in the vagina ranged from +322 mV to +137 mV (mean, +170 ...
Apple J S - - 1985
Forty patients were randomized in a double-blind study to compare the safety and diagnostic quality of Hexabrix vs. Renografin-60 without epinephrine in knee arthrography. Hexabrix is a monoacidic dimer of meglumine and sodium salts of ioxaglic acid with a lower osmolality than conventional contrast agents of similar concentration (32% iodine). ...
Willoughby J S - - 1984
Pregnancy should not greatly alter the anaesthetic management of a patient with intracranial aneurysms. Controlled hypotension is the method of choice for meeting surgical requirements. Primary attention to the mother with judicious use of sodium nitroprusside is unlikely to compromise the foetus. Sodium nitroprusside is not teratogenic in animal experiments. ...
Lee J R - - 1984
To determine whether combinations of saline and surface-acting laxatives have any superior action over saline laxatives alone in cleansing the colon, patients having double-contrast barium enema examinations were randomly allocated to magnesium citrate alone and magnesium citrate with either oral or rectal bisacodyl. The addition of bisacodyl conferred no benefit ...
Paller M S - - 1984
The mechanism of decreased pressor responsiveness to pressor agents was examined serially throughout pregnancy in conscious rats. Rats, 15 and 20 days pregnant, showed marked blunting of the pressor response to graded doses of angiotensin, whereas after only 5 days of pregnancy there was a normal response and at 10 ...
Marklund S L - - 1984
A further characterization of human extracellular superoxide dismutase is reported. The study was especially aimed at the interaction with substances known to interfere with CuZn superoxide dismutase and other superoxide dismutases. Extracellular superoxide dismutase is efficiently inhibited by cyanide and is about 3 times more sensitive than is human CuZn ...
Mandelbaum F R - - 1984
Two hemorrhagic factors were isolated from the venom of Bothrops neuwiedi (jararaca pintada) by ammonium sulfate precipitation followed by chromatography on DEAE-Sephadex A-50 and DEAE-cellulose DE-32, gel filtration on Sephadex G-100 and polyacrylamide-gel electrophoresis. These factors were named neuwiedi hemorrhagic factors NHFa and NHFb. They are acidic proteins of pI ...
Linden S - - 1983
Because of possible teratogenicity, lithium should be used during the first trimester only if clinically essential. Lithium levels should be monitored throughout pregnancy and dosage adjusted as necessary. Sodium-restricted diets and diuretics should be used with caution. Lithium dose should be reduced with the onset of labor. Mothers who choose ...
Weissberg P L - - 1983
In a cross sectional study of 137 women of childbearing age (16-40) the effects of normal pregnancy, hypertensive pregnancy, and oral contraceptives on red cell electrolyte content and sodium efflux rates were examined and the results compared with values in a control group of normotensive, non-pregnant women. Efflux rate constants ...
Caldwell J R - - 1983
One hundred forty-one subjects with osteoarthritis completed this double-blind, multicenter, crossover trial comparing four nonsteroidal anti-inflammatory (NSAI) agents after single-blind aspirin stabilization. Preferences of both patients and physicians showed the following rank order from most to least preferable: tolmetin sodium, naproxen, ibuprofen, fenoprofen calcium. By all but three of more ...
Perentesis G P - - 1983
The stability of bretylium tosylate when mixed with large-volume parenteral (LVP) solutions was assessed over a four-week period, and the compatibility of bretylium tosylate when mixed with eight frequently used drugs was evaluated. Bretylium tosylate admixtures of approximately 1 mg/ml were prepared in both polyvinyl chloride (PVC) bags and glass ...
Jaspers W J - - 1983
Angiotensin II (A-II) sensitivity was determined in 23 nonmedicated nulliparas in the third trimester of pregnancy, before and after a 7- to 10-day period of bed rest and a strongly sodium-restricted diet (maximal 20 mmol Na+/24 hr). Seventeen nulliparous women had pregnancy-induced hypertension (PIH). The effective pressor dose (EPD), that ...
Boyd R D - - 1983
The volumes of distribution of 22Na and 24Na, 51Cr-EDTA and albumin labelled with 131I and 125I were measured in cotyledons and skeletal muscle taken from pregnant sheep and the fetuses near term. Radiolabelled substances were injected through chronically implanted catheters 0.5-3.2 hr before removal of tissues in 'short-term' experiments and ...
Jakinovich W W - - 1983
The sugar methyl 4,6-dichloro-4,6-dideoxy-alpha-D-galactopyranoside (DiCl-gal) is a new type of inhibitor of the gerbil's electrophysiological taste response to sucrose or saccharin. Saturated solutions of this compound alone barely stimulate the gerbil's taste nerve. But, when mixed with sucrose or saccharin, DiCl-gal suppresses the gerbil's taste response to these two sweeteners. ...
Horton R J - - 1983
The comparative safety and efficacy of the orally active gold compound, auranofin, and parenteral gold compounds, principally gold sodium thiomalate, are reviewed. No difference in efficacy was detected in eight of the 12 published studies which compared auranofin and gold sodium thiomalate. Two studies favoured auranofin and two gold sodium ...
Hinton D E - - 1982
Studies on isolated perfused tubules of the tiger salamander (Ambystoma tigrinum) have shown that the distal nephron is heterogeneous with respect to function (Stoner, 1977). In this study, the initial portion of the distal tubule (diluting segment) exhibited a voltage, positive in the lumen, and a net absorption of chloride. ...
Normann S J - - 1982
Pregnancy inhibits macrophage accumulation within the peritoneal cavity of Wistar rats when inflammation is induced by phytohaemagglutinin (PHA). The inhibition of macrophages was considerably greater than that of polymorphonuclear leucocytes (PMNs) induced by sodium caseinate. Pregnancy did not significantly alter macrophage accumulation to PHA injected into the pleural space or ...
Rapoport J - - 1982
We wished to compare the natriuretic and diuretic effect of extracellular volume expansion (ECVE) with 0.9% NaCl to that obtained with up-to-the-neck immersion (NI) in healthy volunteers. Clearance techniques during maximal antidiuretic hormone suppression were utilized to pinpoint the sites of tubular NaCl reabsorption. Mean glomerular filtration rate (GFR) did ...
Lindbloom G - - 1982
The Rotter, Adult Nowicki-Strickland, and Levenson IE scales were completed by 175 undergraduate students. Factor analyses reconfirmed the factor structure of the Levenson IE scale. Partial correlation analyses showed that the portion of common variance shared by the Rotter IE and the Adult Nowicki-Strickland IE scales associated closely with Levenson's ...
Oats J N - - 1982
In a prospective study the interactions between ACE and the renin-angiotensin system in 18 primigravid normotensive women were investigated throughout pregnancy. ACE activity was found to be depressed throughout pregnancy, rising in the last trimester and returning to non-pregnant values by 6 weeks post partum. No significant differences were found ...
Oney T - - 1982
Normal pregnancy is associated with refractoriness to the pressor effects of i.v. administered angiotensin II (A II). In pre-eclampsia, this refractoriness to A II is lost several weeks prior to the increase of blood pressure. Infusions of 200 ml of 3% saline or of 40% sorbitol over 30 min, or ...
Atherton J C - - 1981
1. Glomerular filtration rate (G.F.R.) and salt and water reabsorption were measured in age-matched (12- to 13-week-old) virgin rats and rats at different stages of pregnancy and infused with saline at 37.5 and 200 microliters/min. 2. G.F.R. and salt and water reabsorption were significantly higher in early pregnancy and remained ...
Rickwood A M - - 1980
Phimosis, defined as scarring of the tip of the prepuce, was studied prospectively in a series of 23 boys aged 4 to 11 years. There was little to support the contention that the condition is caused by trauma, or by ammoniacal or bacterial inflammation of the prepuce, nor could any ...
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