Given a passage with a context and an answer, 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.

Context: To explore the effect of delta-opioid receptor (DOR) in electroacupuncture (EA) protecting the brain against acute ischemic injury.', 'Fifty-one rats were randomly divided into sham ischemia group, ischemia group, sham EA group, EA group, and EA+DOR antagonist (naltrindole) group. Transient focal cerebral ischemia (1 hour) was induced in rat brain by middle cerebral artery occlusion (MCAO) method. EA was applied on Shuigou (GV 26) and Neiguan (PC 6) for 30 min, starting immediately after the onset of reperfusion. Neurological deficit scores and volume of cerebral infarction were detected after 24-hour reperfusion. Other 12 rats were randomly divided into sham ischemia group, ischemia group, EA group and EA + naltrindole group. DOR protein expressions were assessed by Western blotting after 24-hour reperfusion.', 'In comparison with the ischemia group and sham EA group, EA significantly reduced ischemic infarction and neurological deficits (P<0.05); EA significantly increased the expression of 60 kD DOR protein (P<0.05) and tended to increase that of 36 kD DOR protein (P>0.05). When naltrindole was combined with EA, the naltrindole completely abolished the EA-induced protection in ischemic infarction and neurological deficits, and also arrested the expression of DOR.
Answer: EA can up-regulate DOR expression and protect the brain from ischemia-reperfusion injury.
Does [ Electroacupuncture protect the brain against acute ischemic injury via up-regulation of delta-opioid receptor in rats ]?

Context: To determine the role of herpes simplex virus-1 (HSV-1) glycoprotein K(gK) in corneal infection, neuroinvasion, and virus latency in trigeminal ganglia of mice.', 'The recombinant virus HSV-1 (McKrae) Delta gK (MKDelta gK) carrying a deletion of the gK gene was constructed by insertional/deletion mutagenesis and replaced by a gene cassette constitutively expressing the enhanced green fluorescence protein. The gK deletion of the MKDelta gK virus was rescued to produce the wild-type-like virus MKgK. Balb/c mice were infected ocularly with either virus, and the infection pattern in the eye, clinical disease progression, and establishment of viral latency was monitored.', 'Mice infected with the MKDelta gK strain produced in a gK complementing cell line did not exhibit clinical signs when compared with mice infected with the MKgK virus. Direct visualization of infected eyes revealed that the MKDelta gK virus was unable to spread in mouse corneas, while the MKgK rescued virus spread efficiently. Nineteen of 20 scarified and 5/12 unscarified mice infected with the MKgK virus produced infectious virus after coculture with permissive cells, while 0/20 scarified and 0/12 unscarified mice infected with the MKDelta gK virus produced infectious virus. HSV DNA was detected in trigeminal ganglia by PCR in 19/20 scarified and 9/12 unscarified mice inoculated with MKgK, while HSV DNA was detected in the trigeminal ganglia of 3/20 scarified and 0/12 unscarified mice inoculated with MKDelta gK.
Answer: The results show that HSV-1 gK is essential for efficient replication and spread in the corneal epithelium and trigeminal ganglia neuroinvasion in MKDelta gK inoculated mice.
Is the herpes simplex virus type 1 ( HSV-1 ) glycoprotein K ( gK ) essential for viral corneal spread and neuroinvasiveness?

Context: The first Heschl's gyrus (HG) is believed to receive the core projection of the acoustic radiation. We examined if it were possible to differentiate the subcortical white matter of the HG from the superior temporal gyrus (STG) using diffusion tensor (DT) imaging.", 'The study was approved and informed consent was obtained in accordance with the guidelines of our Institutional Review Board for human subject studies. We examined six healthy adult volunteers with DT images using 20 orientations and repeated 11 times. The fractional anisotropy (FA) and the apparent diffusion coefficient (ADC) were calculated.', 'The mean FA of the subcortical white matter of the HG (0.37) was higher than that of the STG (0.27) on both sides (P < .01). There was no statistically significant difference when comparing left and right HG and STG (P > .05). There was no statistically significant difference in mean ADC of the HGs and STGs (0.75 x 10(-3) mm(2)/sec, P > .05).
Answer: The FA in the subcortical white matter of the HG was higher than that of the STG in both hemispheres. These changes in DT imaging may be accounted for by the presence of the auditory radiations.

Is fractional anisotropy higher in Heschl 's gyrus than in superior temporal gyrus in normal subjects?