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.

[EX Q]: Brain-derived neurotrophic factor (BDNF) acts rapidly to modulate synaptic neurotransmission in the brain. Although present in neurons, glial cells, and mucosal cells of the colon, and in higher concentrations than in brain, the action of BDNF in gut have not been characterized. The aim of this study was to identify the role of BDNF in mediating the peristaltic reflex.', 'BDNF and a specific antiserum were examined for their effects on the peristaltic reflex and release of the sensory mediators serotonin and calcitonin gene-related peptide in rat colon. The peristaltic reflex and release of serotonin and calcitonin gene-related peptide were also examined in genetically modified mice (BDNF(+/-)) with reduced levels of BDNF.', 'Endogenous brain-derived neurotrophic factor was released into the sensory compartment in a stimulus-dependent manner during the peristaltic reflex induced by mucosal stimulation but not muscle stretch. BDNF stimulated and immunoneutralization of endogenous BDNF reduced ascending contraction and descending relaxation of circular muscle and release of serotonin and calcitonin gene-related peptide during the peristaltic reflex induced by mucosal stimulation but not muscle stretch. The peristaltic reflex and release of serotonin and calcitonin gene-related peptide during the peristaltic reflex induced by mucosal stimulation but not muscle stretch were significantly reduced in BDNF(+/-) mice.
[EX A]: Does brain-derived neurotrophic factor augment peristalsis by augmenting 5-HT and calcitonin gene-related peptide release?

[EX Q]: Video-EEG monitoring in the epilepsy monitoring unit (EMU) is a limited clinical resource. Knowledge of the predicting factors for length of stay (LOS) in the EMU may allow providers to more efficiently utilize EMU bed space.', 'The records for all consecutive admissions to the EMU at the University of Colorado Hospital between December 1, 2010 and May 31, 2011 (n = 142) were retrospectively reviewed.', 'Univariate analyses focusing on variables known prior to admission showed that EMU LOS (in hours) was not significantly correlated with patient age, number of event types, or number of antiepileptic drugs at admission. Patients who were admitted to the EMU for event characterization had statistically significantly shorter average LOS than patients who had been admitted as a part of a presurgical evaluation. Patients who reported < = 1 seizure per week had a statistically significantly higher average LOS than patients who reported >= 1 seizure per day. These variables were also significantly predictive of total LOS (p < 0.0001 and p = 0.03, respectively) in multivariate analysis.
[EX A]: Do pre-admission clinical factors affect length of stay in the epilepsy monitoring unit?

[EX Q]: Violence and safety exposures, primarily in the form of intimate partner violence (IPV) exposures, have been associated with increased healthcare utilization in women and variable associations with preventive services. It remains unknown, however, if broader measures of violence and safety exposures are associated with preventive healthcare utilization.', 'Data from the 2004 The Philadelphia Health Management Corporation survey were used to compare self-reported utilization of preventive healthcare services for participants who did and did not report exposures to violence or have safety concerns during the past year, using novel but nonvalidated measures of violence and safety concerns. The sample included women aged 18-96 years who reported having a usual source of care. Measures of preventive healthcare utilization included timing of last mammogram, cervical cytology, breast examination, blood cholesterol testing, blood pressure measurement, and screening for colon cancer.', 'The survey had an American Association for Public Opinion Research response rate of 30.4%. Of the 6285 women surveyed who reported having a usual source of care, 456 (7.3%) reported either an exposure to violence or safety concerns, and 5821 did not. Using logistic regression models, women aged 18-65 years who reported safety concerns were less likely to report having cervical cancer testing in the past 12 months (OR 0.68, 95% CI 0.49-0.94). Women > or =40 years who reported safety concerns in the last year were less likely to report having clinical breast examinations (OR 0.63, 95% CI 0.43-0.93) or mammography (OR 0.57, 95% CI 0.39-0.83). Physical violence exposure was not significantly associated with preventive healthcare utilization.
[EX A]:
Do women with safety concerns report fewer gender-specific preventive healthcare services?