Given a passage, construct a question on the basis of the information present in the passage. Construct the question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) it answer uses text phrases from the passage. Avoid creating questions that (i) can't be answered correctly without actually understanding the passage and (ii) uses the same words or phrases given in the passage.

Input: Consider Input: Epinephrine commonly is added to epidural opioids and local anesthetics, however, little is known about the fate of epidurally administered epinephrine. Studies have identified the epinephrine metabolizing enzyme, catechol-O-methyl transferase (COMT), in the cranial meninges of several species. The purpose of this study was to determine whether the spinal meninges also contain COMT and are capable of metabolizing epinephrine. If so, then the spinal meninges may have an important impact in limiting the bioavailability of epinephrine in both the spinal cord and epidural space.', 'Spinal meningeal specimens measuring 4 cm2 were obtained from monkeys (M. nemestrina) and farm-bred pigs and were incubated in bicarbonate-buffered mock cerebrospinal fluid. Epinephrine (200 micrograms base) was added at t = 0, and 200 min later, the mock cerebrospinal fluid was collected for metanephrine analysis. In separate experiments, pig meningeal specimens were separated into dura mater, pia-arachnoid mater, and pia mater, and the experiments were repeated to determine which meninx had the greatest COMT activity.', 'Metanephrine was produced by monkey meninges at the rate of 0.47 ng.min-1.cm-2 and by pig meninges at the rate of 0.23 ng.min-1.cm-2 (P > 0.05). The pia-arachnoid meninx produced metanephrine at a greater rate (4.48 +/- 0.46 ng.min-1.mg-1 tissue) than did the pia mater (1.3 +/- 0.15 ng.min-1.mg-1 tissue) or dura mater alone (1.82 +/- 0.23 ng.min-1.mg-1 tissue).

Output: Is epinephrine metabolized by the spinal meninges of monkeys and pigs?


Input: Consider Input: Although it has been postulated that liver injury results in impaired clearance of bacteria from the blood, no prior study has evaluated hepatic bacterial clearance during sepsis.', 'We hypothesized that liver injury during the evolution of sepsis would result in impaired hepatic bacterial clearance.', 'Mild and severe bacteremia were generated in C57BL/6 mice by low- and high-dose intratracheal inoculation with Pseudomonas aeruginosa.', 'The mortality rates with mild and severe bacteremia were 20% and 60%, respectively. Hepatic bacterial clearance was preserved throughout the evolution of mild bacteremia but was lost late with severe bacteremia. The loss of hepatic bacterial clearance resulted in increased systemic bacteremia and mortality. Pretreatment with a caspase inhibitor resulted in preservation of hepatic bacterial clearance with severe bacteremia and eventual control of the bacteremia. When Kupffer cells were ablated before the onset of bacteremia, there was a loss of hepatic bacterial clearance. This converted an initially mild bacteremia into severe bacteremia with increased organ injury and mortality.

Output: Does severe bacteremia result in a loss of hepatic bacterial clearance?


Input: Consider Input: Although falls in people with Parkinson's disease (PD) associate with dual tasking and freezing of gait (FoG), it is not known whether falls during dual tasking are due to FoG. This study investigated the effects of a cognitive task on the occurrence of falls and FoG when subjects with PD step in response to a postural perturbation.", 'Ten subjects with PD and a history of FoG as well as 10 age-matched subjects without PD stepped in response to large, backward displacements of the support surface, with and without performing a fluency task of listing items in a category. Subjects with PD performed the task in the "off" and "on" dopaminergic medication states. We recorded the percentage of trials with FoG (a lack of step in response to the perturbation), foot-lift latencies, and trials with falls into a safety harness.', 'Dual tasking significantly increased the incidence of falls in people with PD, but subjects without PD did not fall in any condition. Dual tasking did not significantly increase trials without steps or foot-lift latencies. Falls were often coincident with a lack of step (FoG) in the single-task condition, but the increased falls with dual tasking occurred on trials with steps. Levodopa tended to decrease FoG and falls with or without dual tasking. However, medication did not significantly alter the effects of dual tasking on FoG or falls.


Output: Does dual tasking during postural stepping responses increase falls but not freezing in people with Parkinson 's disease?