Given an abstract, indicate which of the provided candidate titles (Option1 and Option2) best describes it (respond with the text of the title, not option1/2).
One example is below.
Q: Abstract: Some patients converted from ventricular fibrillation to organized rhythms by defibrillation-trained ambulance technicians (EMT-Ds) will refibrillate before hospital arrival. The authors analyzed 271 cases of ventricular fibrillation managed by EMT-Ds working without paramedic back-up. Of 111 patients initially converted to organized rhythms, 19 (17%) refibrillated, 11 (58%) of whom were reconverted to perfusing rhythms, including nine of 11 (82%) who had spontaneous pulses prior to refibrillation. Among patients initially converted to organized rhythms, hospital admission rates were lower for patients who refibrillated than for patients who did not(53% versus 76%, P = NS), although discharge rates were virtually identical (37% and 35%, respectively). Scene-to-hospital transport times were not predictively associated with either the frequency of refibrillation or patient outcome. Defibrillation-trained EMTs can effectively manage refibrillation with additional shocks and are not at a significant disadvantage when paramedic back-up is not available.
Which is the apt title for the abstract? option1: Refibrillation managed by EMT-Ds option2: Maintenance of compliance in a small diameter arterial prosthesis.
A: Refibrillation managed by EMT-Ds
Rationale: The abstract is about refibrillation and it is also mentioned in the abstract that it is managed by EMT-Ds. So it is an apt title.
Q: Abstract: The contractile action of cholecystokinin (CCK) on smooth muscle of the gut is either direct (gallbladder and gastric fundus) or both direct and neurally mediated (small intestine). These regional differences were used to characterize pharmacologically CCK receptors on smooth muscle cells and neurons of the gastric fundus, gallbladder, and ileum of the guinea pig. In circular and longitudinal ileal smooth muscle, tetrodotoxin was used to separate direct from neurally mediated contractile effects. Cholecystokinin receptors on smooth muscle cells were found in all locations. The muscle cells displayed a decreasing order of sensitivity to the C-terminal octapeptide of cholecystokinin as expressed in the median doses, and to the selective cholecystokinin antagonist, proglumide, as expressed in the inhibitory dissociation constants. The median doses of the octapeptide of cholecystokinin ranged from 5.5 nM in gallbladder muscle to 185 nM in circular ileal muscle; the corresponding inhibitory dissociation constants of proglumide ranged from 180 to 437 microM [corrected]. Cholecystokinin receptors on cholinergic neurons were confined to circular and longitudinal ileal muscle; the neurons were 80-300 times more sensitive to the octapeptide of cholecystokinin (D50's 0.5 and 2.3 nM) than the corresponding muscle cells, and 19-21 times more sensitive to proglumide (inhibitory dissociation constants, 20 microM [corrected]). The results provide clear evidence of cellular heterogeneity of cholecystokinin receptors (i.e., difference in sensitivity between muscle cells and neurons from the same location) as well as regional heterogeneity (i.e., difference in sensitivity between muscle cells from various locations).
Which is the apt title for the abstract? option1: Regional and cellular heterogeneity of cholecystokinin receptors mediating muscle contraction in the gut [published erratum appears in Gastroenterology 1987 Jun;92(6):2055] option2: Ex vivo renal artery reconstructions: indications and techniques.
A:
Regional and cellular heterogeneity of cholecystokinin receptors mediating muscle contraction in the gut [published erratum appears in Gastroenterology 1987 Jun;92(6):2055]