TASK DEFINITION: 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.
PROBLEM: It has been shown that the circulating Renin-Angiotensin System (RAS) is activated during normal pregnancy, but little is known about RAS in pregnancies complicated by gestational diabetes (GDM). GDM is considered not merely a temporary condition, but a harbinger of hypertension and type 2 diabetes. The aim of this study was to evaluate the circulating RAS profile in normotensive women with GDM at the third trimester of pregnancy and to compare the results with healthy pregnant and non-pregnant age-matched women.', 'The diagnostic criteria for GDM followed the recommendations of the American Diabetes Association. Angiotensin I (Ang I), Angiotensin II (Ang II) and Angiotensin 1-7 [Ang-(1-7)] were determined in 24 pregnant patients with GDM; 12 healthy pregnant women and 12 non-pregnant women by radioimmunoassay.', 'Levels of Ang I, Ang II and Ang-(1-7) were higher in pregnant women (p<0.05), but showed a different pattern in the GDM group, in which reduced Ang-(1-7) circulating levels were found (p<0.05). This observation was confirmed by the significantly lower Ang-(1-7)/Ang I ratio (p<0.05).

SOLUTION: Does the pregnancy-induced increase of plasma angiotensin- ( 1-7 ) is blunt in gestational diabetes?

PROBLEM: To test the effect of substituting a modified-fat cheese product into the diets of hypercholesterolemic adults.', 'A 4-month, randomized, double-blind, crossover substitution trial.', 'General community outpatient study.', 'Twenty-six healthy adult volunteers (17 men, 9 women) with moderate hypercholesterolemia (total cholesterol > 5.69 mmol/L but < 7.24 mmol/L).', "Daily substitution of 100 g of cheese, either partial skim-milk mozzarella or modified-fat (vegetable oil) mozzarella cheese product, into participants' normal diets. Participants consumed an assigned cheese for 2 months, at which time they crossed over to consume the other study cheese.", 'Plasma lipid and apolipoprotein levels were measured at baseline and at 2 and 4 months after initiation of the study. Compliance was assessed by body weight and by biweekly dietary records and interviews.', 'No differences in weight or in the amount or type of calories consumed were found during the study. No statistically significant changes in lipid values resulted from consumption of mozzarella cheese. Modified-fat cheese substitution resulted in a decreased low-density lipoprotein cholesterol level when compared with levels at both baseline (-0.28 mmol/L; 95% Cl, -0.14 to -0.42 mmol/L) and during consumption of the skim-milk mozzarella cheese (-0.38 mmol/L; 95% Cl, -0.2 to -0.70 mmol/L). Findings for total cholesterol were similar. High-density lipoprotein cholesterol, plasma triglyceride, and apolipoprotein A-l and B-100 levels were unaltered. Both sexes responded similarly.

SOLUTION: Does a linoleate-enriched cheese product reduce low-density lipoprotein in moderately hypercholesterolemic adults?

PROBLEM: To investigate the effect of rhein on endothelial plasminogen activator inhibitor-1 (PAI-1) mRNA expression and protein production induced by transforming growth factor beta1 (TGFbeta1), and to explore the mechanism of the protective action of rhein on endothelial cells.', 'A human umbilical endothelium derived cell line (ECV-304) from ATCC was used in this study. The PAI-1 mRNA expression and protein synthesis in the endothelial cells were detected by Northern blot and flow cytometry analysis, respectively. The activity of phospho-p44/p42 MAP kinase induced by TGFbeta1 was determined by immunoprecipitation analysis and western blot.', 'TGFbeta1 rapidly increased PAI-1 mRNA expression in the endothelial cells, and this effect lasted at least 24 hours. The upregulation of PAI-1 mRNA expression induced by TGFbeta1 in endothelial cells was inhibited by rhein in a dose-dependent manner. In addition, rhein inhibited endothelial PAI-1 protein production. Further study revealed that rhein had a significant inhibitory effect on the activity of phospho-p44/p42 MAP kinase induced by TGFbeta1 in human endothelial cells.

SOLUTION:
Does rhein inhibit transforming growth factor beta1 induced plasminogen activator inhibitor-1 in endothelial cells?