(1) During control, no significant difference between systolic fluctuation (delta Pa) and pleural swings (delta Ppl) was found.
(2) If tracer is introduced into the carotid artery after osmotic treatment, brain uptake is increased by a net factor of 50 (a factor of 70 due to elevation of PA, multiplied by 7 due to infusion by the carotid route) as compared to uptake by normal, untreated brain with infusion into a peripheral vein.
(3) Whole-virus vaccines prepared by Merck Sharp and Dohme (West Point, Pa.) and Merrell-National Laboratories (Cincinnati, Ohio) and subunit vaccines prepared by Parke, Davis and Company (Detroit, Mich.) and Wyeth Laboratories (Philadelphia, Pa.) were given intramuscularly in concentrations of 800, 400, or 200 chick cell-agglutinating units per dose.
(4) The polymerization of dATP, dCTP, and dGTP onto the defined length initiator, d(pA)10, has been carried out in four buffers.
(5) We have shown that human monocytes can synthesize both urokinase-type PA (u-PA) and tissue-type PA (t-PA).
(6) A variant t-PA (G K1 K2 P), which contained only one of the two fibrin binding sites, i.e.
(7) Patients with inflammatory bowel disease showed decreased tissue-type plasminogen activator antigen release (t-PA Ag), no significant Von Willebrand antigen release (vWF Ag), and a residual plasminogen activator inhibitor activity (PAI activity) after venous occlusion.
(8) Proper function of proteinases such as PA may require focusing of activity on a cellular level.
(9) It was then determined whether reducing the PA wedge pressure during exercise with prazosin (9 patients) or dobutamine (6 patients) reduced ventilatory levels toward normal.
(10) A similar concentration of estradiol had no effect on PA activity of the myocytes.
(11) Plasminogen activator inhibitor-1 (PAI-1), the primary physiological inhibitor of tissue-type plasminogen activator (t-PA) in plasma, is a serine proteinase inhibitor (serpin) that forms a 1:1 stoichiometric complex with its target proteinase leading to the formation of a stable inactive complex.
(12) In 130 patients, who were considered to be anti-HTLV-I positive or negative by the PA method, we compared the anti-HTLV-I detection rates and the specificity of the following three EIA methods: the Ei-test ATL and two new EIA methods using different recombinant antigens which recognize different sites.
(13) Plasminogen activator inhibitor (PAI-I) rapidly inactivates tissue plasminogen activator (t-PA) and urokinase (UK) with nearly identical association rate constants.
(14) Heart block occurred in 214 patients (12%); 113 (6.3%) had heart block on presentation and 101 (5.7%) developed heart block in the 24 h after treatment with rt-PA.
(15) The frequency spectra of transmission coefficients for ultrasound passing through a sheet of gas-filled micropores have been measured using incident waves with amplitudes up to 2.4 x 10(4) Pa.
(16) In testing the hypothesis that Lp(a) can competitively inhibit plasma clot lysis mediated by plasmin, the present study shows that Lp(a) significantly enhanced plasma clot lysis mediated by streptokinase or t-PA.
(17) The in vivo hepatic lipid peroxide content of rats was increased by aspirin or 4-pentenoic acid (4-PA) administration but was decreased by clofibrate (CPIB) administration.
(18) The predominant u-PA binding protein isolated from whole cell detergent extracts migrated with a molecular mass of approximately 36 Kd using affinity chromatography.
(19) These studies demonstrate that alpha-thrombin is a potent stimulus for human PLD-mediated PA formation and that cyclic adenosine nucleotides modulate agonist-induced cellular PLD activity.
(20) From the stress-strain curve the following values were selected: strain, stress, and slope at 80 mmHg equivalent pressure (1 mmHg = 133.3 Pa); maximum stress, strain, and slope; and breaking stress, strain, and slope if the sample broke.
Pah
Definition:
(interj.) An exclamation expressing disgust or contempt. See Bah.
(n.) A kind of stockaded intrenchment.
Example Sentences:
(1) In contrast, Leydig cells from rat testis contain monooxygenase systems which catalyze the metabolism of PAH, such as DMBA.
(2) The reason we have postulated that one-electron oxidation plays an important role in the activation of PAH derives from certain common characteristics of the radical cation chemistry of the most potent carcinogenic PAH.
(3) It is suggested that the atmosphere of Athens favours the formation of secondary direct-acting mutagens due to the oxidation and nitration of PAH by ozone and nitrogen oxides, which are more abundant in the late spring months.
(4) The cytosol binding activity apparently decreased but reincubation of the cytosol with the radioactive ligand completely restored "4S" PAH-BP activity.
(5) PAH levels have progressively decreased in the last few decades, most probably due to the introduction of anti-smoke regulations and the decrease of coal burning for heating.
(6) The haplotype associations, relative frequencies, and distributions of five prevalent PAH mutations (R158Q, R261Q, IVS10nt546, R408W, and IVS12n1) were established in a comprehensive European sample population and subsequently were examined to determine the potential roles of several genetic mechanisms in explaining the present distribution of the major PKU alleles.
(7) The stimulation was followed by short-term hyperpolarization of primary afferents (PAH; 1-5 min) and by depression of dorsal root potentials (DPRs) which had a similar time course to the delta [K]e, and were not blocked by naloxone.
(8) An isolated rat kidney preparation was used, and the uptake of UB by renal tissue, the UB appearance in the urine, and the secretion of PAH were analyzed throughout the perfusion.
(9) The analytical method for PAH determination is based on filter extraction, two-dimensional thin-layer chromatography and fluorescence spectrometry; lead is measured by atomic absorption.
(10) Thus, the substantially invasive procedure of ureteral catheterization is not required to ascertain left and right kidney PAH clearance in patients already at risk from renal disease.
(11) Uroporphyrin, heptacarboxylic acid porphyrin, and coproporphyrin are the major porphyrins to accumulate in response to PAHs (for example, 3,3',4,4'-TCBP in chick embryo liver cell culture).
(12) We have also found useful for the determination of acceptable concentration levels for the noncarcinogenic PAHs an analogous methodology based on the relative toxicities of the noncarcinogenic PAHs.
(13) The carcinogenic potency not only of PAH-containing extracts but also of the whole exhausts has often been estimated from their benzo[a]pyrene (BP) content.
(14) Deposition fluxes of Pb, Cd, Cu and a range of 11 PAH compounds have been determined at distances of 3.8-220 m from the M6 motorway in northwest England over a period of 21 months.
(15) Sucrose-gradient analysis of BeP binding activity indicated that BeP bound with high affinity to the 4S PAH-binding protein, but not to the Ah receptor.
(16) The air was sampled daily by glass fiber's filters; a ponderal determination of total particulate was made; PAH was dosed by gas-chromatography and by mass spectrometry, metals was determined by atomic absorption spectrometry.
(17) Both the occupational and in particular the therapeutic exposure to coal tar resulted in clear increases in urinary levels of PAH metabolites as compared to unexposed subjects.
(18) Simultaneous imposition of the pH gradient (outward OH- gradient) and inward Na+ gradient stimulated PAH uptake significantly over that with an Na+ gradient alone.
(19) Using PAH as a marker for the maximal extractable perfusion flow, 1-naphthol could be regarded as a high-extraction compound even at high perfusion flow rates.
(20) Experiments with basolateral membrane vesicles prepared from rat kidney cortex were performed to study the mechanism by which p-aminohippuric acid (PAH) is taken up across the contraluminal membrane and is concentrated in proximal tubule cells.