TASK DEFINITION: Indicate the presence of numerical data in the abstract (whether numerical data plays a key role in medical records), solely using the information from the abstract.
PROBLEM: Abstract: The effect of 17 beta-estradiol (17 beta E2) on anterior pituitary dopaminergic receptor (D2) content was studied in vitro in relation to PRL secretion. Anterior pituitaries from ovariectomized rats were incubated for short periods in medium 199, with or without the steroid. Dopamine (DA) receptors in partially purified pituitary membranes were quantified by equilibrium binding using [3H]spiperone; the PRL released into the incubation medium was analyzed by RIA. Addition of 10(-10) to 10(-6) M 17 beta E2 to the incubation medium of anterior pituitaries rapidly and reversibly decreased the number of DA receptors (P less than 0.01 to 0.001), while increasing PRL release, in a dose-related fashion. The maximal effect on both receptor numbers and PRL secretion was obtained with 10(-8) M 17 beta E2. This effect involved no change in receptor affinity (Kd = 0.11 +/- 0.01 nM in presence or in absence of 17 beta E2). This estrogen-induced decrease in DA-binding capacity was apparently not the result of the occupation of spiperone binding sites by the steroid, since after a 30-min incubation with 10(-8) M [3H]17 beta E2, no radioactivity was detectable on the partially purified membranes. Moreover, the presence of 17 beta E2 at the same time as the labeled D2 ligand did not modify the kinetics of association or dissociation of spiperone with pituitary membranes. This decrease in anterior pituitary DA receptor content and the increase in PRL release were already significant after a 7-min incubation in the presence of 10(-8) M 17 beta E2. Finally, these effects of 17 beta E2 were not mimicked by its 17 alpha-stereoisomer, nor by progesterone, or testosterone. These results suggest that the stimulatory effect of 17 beta E2 on PRL secretion may be due, at least in part, to the desensitization of anterior pituitary cells to DA. The steroid may produce this desensitization directly by decreasing the number of D2. The short latency of this effect likely discards the possibility of a genomic action of 17 beta E2.
Question: Does the abstract contain any numerical data?

SOLUTION: Yes

PROBLEM: Abstract: Everyone knows that some fractures in children have a great capacity for remodeling and require minimal care. Likewise, everyone knows that some growth-plate injuries have great potential for disaster. The skill comes in knowing which is which.
Question: Does the abstract contain any numerical data?

SOLUTION: No

PROBLEM: Abstract: Digital subtraction angiography is a new imaging technique that uses a computer to subtract background distractions and to enhance contrast and density. The intravenous administration of contrast material permits safe outpatient screening for arterial disease. The exact role of intravenous digital subtraction angiography in cerebrovascular disease is still in evolution and remains the subject of debate. The value of intravenous digital subtraction angiography in screening for renovascular hypertension is less controversial, but selection of patients remains a subject for further study. Intra-arterial digital subtraction angiography has become a standard imaging technique that offers both the inherent safety produced by reduction of the volume of contrast material and the added safety afforded by reduction of both the size of the catheter and the time required to perform complex arterial interventional procedures. With the evolution of more sophisticated computed technology and radiographic equipment, the impact of both intravenous and arterial digital subtraction angiography will become even more dramatic.
Question: Does the abstract contain any numerical data?

SOLUTION:
No