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.

Q: Context: Cigarette smoke disrupts the protective barrier established by the airway epithelium through direct damage to the epithelial cells, leading to cell death. Since the morphology of the airway epithelium of smokers does not typically demonstrate necrosis, the most likely mechanism for epithelial cell death in response to cigarette smoke is apoptosis. We hypothesized that cigarette smoke directly up-regulates expression of apoptotic genes, which could play a role in airway epithelial apoptosis.', 'Microarray analysis of airway epithelium obtained by bronchoscopy on matched cohorts of 13 phenotypically normal smokers and 9 non-smokers was used to identify specific genes modulated by smoking that were associated with apoptosis. Among the up-regulated apoptotic genes was pirin (3.1-fold, p < 0.002), an iron-binding nuclear protein and transcription cofactor. In vitro studies using human bronchial cells exposed to cigarette smoke extract (CSE) and an adenovirus vector encoding the pirin cDNA (AdPirin) were performed to test the direct effect of cigarette smoke on pirin expression and the effect of pirin expression on apoptosis.', 'Quantitative TaqMan RT-PCR confirmed a 2-fold increase in pirin expression in the airway epithelium of smokers compared to non-smokers (p < 0.02). CSE applied to primary human bronchial epithelial cell cultures demonstrated that pirin mRNA levels increase in a time-and concentration-dependent manner (p < 0.03, all conditions compared to controls). Overexpression of pirin, using the vector AdPirin, in human bronchial epithelial cells was associated with an increase in the number of apoptotic cells assessed by both TUNEL assay (5-fold, p < 0.01) and ELISA for cytoplasmic nucleosomes (19.3-fold, p < 0.01) compared to control adenovirus vector.
Answer: These observations suggest that up-regulation of pirin may represent one mechanism by which cigarette smoke induces apoptosis in the airway epithelium, an observation that has implications for the pathogenesis of cigarette smoke-induced diseases.

A: Is upregulation of pirin expression by chronic cigarette smoking associated with bronchial epithelial cell apoptosis?
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Q: Context: Stomatal guard cells monitor and respond to environmental and endogenous signals such that the stomatal aperture is continually optimised for water use efficiency. A key signalling molecule produced in guard cells in response to plant hormones, light, carbon dioxide and pathogen-derived signals is hydrogen peroxide (H(2)O(2)). The mechanisms by which H(2)O(2) integrates multiple signals via specific signalling pathways leading to stomatal closure is not known.', 'Here, we identify a pathway by which H(2)O(2), derived from endogenous and environmental stimuli, is sensed and transduced to effect stomatal closure. Histidine kinases (HK) are part of two-component signal transduction systems that act to integrate environmental stimuli into a cellular response via a phosphotransfer relay mechanism. There is little known about the function of the HK AHK5 in Arabidopsis thaliana. Here we report that in addition to the predicted cytoplasmic localisation of this protein, AHK5 also appears to co-localise to the plasma membrane. Although AHK5 is expressed at low levels in guard cells, we identify a unique role for AHK5 in stomatal signalling. Arabidopsis mutants lacking AHK5 show reduced stomatal closure in response to H(2)O(2), which is reversed by complementation with the wild type gene. Over-expression of AHK5 results in constitutively less stomatal closure. Abiotic stimuli that generate endogenous H(2)O(2), such as darkness, nitric oxide and the phytohormone ethylene, also show reduced stomatal closure in the ahk5 mutants. However, ABA caused closure, dark adaptation induced H(2)O(2) production and H(2)O(2) induced NO synthesis in mutants. Treatment with the bacterial pathogen associated molecular pattern (PAMP) flagellin, but not elf peptide, also exhibited reduced stomatal closure and H(2)O(2) generation in ahk5 mutants.
Answer: Our findings identify an integral signalling function for AHK5 that acts to integrate multiple signals via H(2)O(2) homeostasis and is independent of ABA signalling in guard cells.

A: Does the histidine kinase AHK5 integrate endogenous and environmental signals in Arabidopsis guard cells?
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Q: Context: To find sensitive and specific laboratory examination items for early diagnosing and monitoring liver transplantation reject reaction.', 'Randomly investigate 41 liver transplantation patients, among them there were 16 patients with reject reaction (including 12 with acute rejection, 4 with chronic rejection). Plasma soluble thrombomodulin (STM) and von Willebrand factor (vWF) levels were measured before operation and every other day after operation.', 'Plasma STM level increased significantly after operation, two days before rejection and after acute rejection (5.58 ng/ml +/- 0.42 ng/ml, 5.93 ng/ml +/- 0.45 ng/ml, and 7.88 ng/ml +/- 0.29 ng/ml, respectively), so did vWF level (101.2% +/- 4.68%, 104.3% +/- 5.78%, and 127.7% +/- 5.74%, respectively). STM level was much higher in acute rejection than that in chronic rejection (7.88 ng/ml +/- 0.29 ng/ml vs. 6.35 ng/ml +/- 0.54 ng/ml, t = 2.46, P < 0.05), in no reaction group after impacting therapy than in effective group (8.30 ng/ml +/- 0.19 ng/ml vs. 3.82 ng/ml +/- 0.22 ng/ml, t = 12.98, P < 0.01), and in dead group after treatment than in living group (7.98 ng/ml +/- 0.18 ng/ml vs. 6.51 ng/ml +/- 0.41 ng/ml, t = 3.39, P < 0.01).
Answer: Plasma STM and vWF can be taken as laboratory items for monitoring liver transplantation rejection. Plasma STM can act as not only an early prognosticating marker, but also suitable to distinguish acute from chronic reject reaction, and as a marker for monitoring impacting therapy effect and judging prognosis.

A:
Do [ Values of soluble thrombomodulin and von Willebrand factor judging reject reaction in liver transplantation ]?
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