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: The present study was undertaken to determine whether exposure of the sclera to prostaglandin (PG)F(2alpha) or to the PGF(2alpha) analogue latanoprost acid alters mRNA for matrix metalloproteinases.', 'Fifteen human eye bank eyes were studied. Circular pieces of sclera were either immediately preserved in a stabilization reagent or cultured in low-serum DMEM/F-12 medium. The cultures were treated for 24 hours with medium supplemented with PGF(2a), latanoprost acid, or vehicle. Total RNA was then isolated, and the expression of mRNA for matrix metalloproteinase (MMP)-1, -2, -3, -8, -9, -10, and -12 were determined by real-time PCR. All results were normalized according to the GAPDH mRNA in each sample. Altered mRNA expression after PG treatments also was evaluated with microarrays containing 19 MMP genes and 4 tissue inhibitor of matrix metalloproteinase (TIMP) genes.', 'Real-time PCR results showed that 24 hours of exposure to 100 nM PGF(2alpha) significantly increased mRNA for MMP-1 and -9 (P < 0.06 Wilcoxon test) and that exposure to 100 nM latanoprost acid significantly increased mRNA for MMP-9 (P < 0.06 Wilcoxon test). Array analysis demonstrated increases of MMP-3 and -10 mRNA after exposure to 100 nM latanoprost and further increases after exposure to 200 nM latanoprost. The array results also showed that latanoprost induced dose-dependent increases in the expression of TIMP-1, -2, and -3 mRNA in the scleral cultures.
Answer: PGF(2alpha) and latanoprost acid induce coordinated alterations of MMP gene transcription in scleral organ cultures. These results indicate that PGs can directly trigger MMP gene transcription changes within the sclera. These changes support a role for increased MMPs in the enhancement of uveoscleral outflow that occurs after topical treatment with latanoprost.

A: Do prostaglandin FP agonists alter metalloproteinase gene expression in sclera?
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Q: Context: There are few studies of quality interventions to mitigate the risk of transfusion-associated circulatory overload (TACO). Our aim was to reduce TACO risk in patients admitted to internal medicine at our hospital, by addressing gaps in transfusion practice.', 'A 3-month baseline audit of red blood cell (RBC) transfusion orders was conducted. An intervention consisting of a transfusion order set and physician checklist was developed and implemented based on identified gaps, followed by a 3-month post-intervention audit. Compliance with appropriateness criteria for RBC transfusion was ascertained, along with documentation of transfusion rate, diuretic usage and consent.', 'A total of 97 transfusion orders from 68 inpatients and 95 orders from 62 inpatients were audited in the baseline and post-intervention groups, respectively. Compliance with appropriateness criteria was similar pre- and post-intervention (87 versus 85%, P = 0·81). Specification of transfusion rate improved (84 versus 98%, P < 0·01), and diuretics were appropriately ordered more frequently for patients with TACO risk factors (37 versus 64%, P < 0·01). Timing of diuretics shifted from between or post-transfusion to pre-transfusion (35 versus 86%, P < 0·01), without increases in hypokalemia or acute kidney injury. No case of TACO was observed during the study. Documentation of specific risks discussed during consent discussion improved (4 versus 23%, P < 0·01).
Answer: A checklist and order set are tools that can improve the quality of transfusion orders by increasing the judicious use of pre-transfusion diuretics and augmenting the specification of transfusion rate. These interventions could be adapted to electronic order formats to improve transfusion safety.

A: Do an order set and checklist improve physician transfusion ordering practices to mitigate the risk of transfusion-associated circulatory overload?
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Q: Context: Complement Factor I (CFI) and the CD46 complement regulator (CD46) play an important role in the complement activation pathways, which is known to affect the development of uveitis. The present study was performed to investigate the association of the CFI and CD46 genes with acute anterior uveitis (AAU).', 'A total of 600 subjects (300 patients with AAU and 300 healthy controls) were recruited for this case-control study. Six CFI single nucleotide polymorphisms (SNP) (rs7356506, rs10029485, rs11726949, rs12512308, rs7438961, rs998538) and four CD46 SNPs (rs12138764, rs2466571, rs2796278, rs7545126) were genotyped using Sequenom MassARRAY technology. Allele and genotype frequencies were compared between patients and controls using the χ(2) test. Analyses were stratified for gender, human leukocyte antigen (HLA)-B27, and ankylosing spondylitis status.', 'Rs7356506 in the CFI gene was found to be protective against AAU. There was a significant increase in the frequency of the A allele (p=0.003, pc=0.03, OR=0.684, CI 0.534 to 0.876) and AA homozygosity (p=0.004, pc=0.04, OR=0.624, CI 0.452 to 0.862) in AAU patients as compared to controls. Stratified analysis, according to gender and HLA-B27 status for AAU, also revealed the association with CFI-rs7356506. None of the tested SNPs of CD46 were associated with AAU.
Answer: This study has revealed a significant association between AAU and CFI-rs7356506, suggesting that CFI is involved in the pathogenesis of AAU, and that its influence on AAU may differ depending on gender and HLA-B27 status.

A:
Is cFI-rs7356506 a genetic protective factor for acute anterior uveitis in Chinese patients?
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