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.

Input: Consider Input: Context: Oxidative stress has been considered to play a primary role in the pathogenesis of stress-induced gastric damage. The aim of this study was to investigate the effects of melatonin, ascorbic acid and β-carotene on stress-induced gastric mucosal damage.', 'Fifty-six male Wistar albino rats were divided into control, stress, stress + standard diet, stress + saline, stress + melatonin, stress + ascorbic acid and stress + β-carotene groups. The rats from stress groups were exposed to starvation, immobilization and cold by immobilizing for 8 h at +4°C following 72-hour food restriction. Following stress application, melatonin, ascorbic acid and β-carotene were administered for 7 days. Specimens of gastric tissue were prepared for microscopic and biochemical examinations.', 'Mean histopathological damage scores and mean tissue malondialdehyde levels were significantly decreased but mean tissue glutathione levels and glutathione peroxidase and superoxide dismutase activities were increased in treatment groups vs. stress groups in general. Mean histopathological damage scores of the stress + Mel group was lower than those of stress + D, stress + S, stress + β-car (p < 0.05) and stress + Asc groups (p < 0.005). Additionally, mean tissue catalase activity of the stress + Mel group was higher than that of stress + S (p < 0.005), stress + D (p < 0.05) and stress + β-car groups (p < 0.05).
Answer: Melatonin is more effective than ascorbic acid and β-carotene in improvement of gastric damage induced by intensive stress. We suggest that as well as the direct antioxidant and free radical scavenging potency of melatonin, its indirect effect via the brain-gut axis might account for its greater beneficial action against stress-induced gastric damage.

Output: Is melatonin more effective than ascorbic acid and β-carotene in improvement of gastric mucosal damage induced by intensive stress?


Input: Consider Input: Context: Immunologic abnormalities have been found in bipolar disorder but pentraxin 3, a marker of innate immunity, has not been studied in this population.', 'Levels of pentraxin 3 were measured in individuals with bipolar disorder, schizophrenia, and non-psychiatric controls. Linear regression models were used to compare the pentraxin 3 levels in each of the psychiatric groups to that in the control group, adjusting for demographic and clinical variables. Logistic regression models were used to calculate the odds ratios associated with levels of pentraxin 3 which differed from specified levels of the control group.', 'The sample consisted of 831 individuals: 256 with bipolar disorder, 309 with schizophrenia, and 266 without a psychiatric disorder. The levels of pentraxin 3 in the bipolar disorder, but not in the schizophrenia, group were significantly lower than those of controls, adjusting for age, gender, race, maternal education, smoking status, and body mass index (t = -3.78, p < 0.001). The individuals with bipolar disorder also had significantly increased odds of having low levels of pentraxin 3 relative to both the 10th and 25th percentile level of the controls and significantly decreased odds of having a level greater than the 75th and the 90th percentile level of the controls, adjusting for the same covariates.
Answer: Individuals with bipolar disorder have low levels of pentraxin 3 which may reflect impaired innate immunity. An increased understanding of the role of innate immunity in the etiopathogenesis of bipolar disorder might lead to new modalities for the diagnosis and treatment of this disorder.

Output: Is pentraxin 3 reduced in bipolar disorder?


Input: Consider Input: Context: Hepatocellular carcinoma is one of the most common malignancies worldwide. The only curative treatment is surgery. As hepatocellular carcinoma is often associated with liver cirrhosis, patients are at risk for postoperative liver failure. In the recent years, platelets are thought to play an important role in liver regeneration.The aim of this study was to discover the relevance of postoperative platelet counts after liver resection for hepatocellular carcinoma.', 'Data of 68 patients who underwent liver resection for hepatocellular carcinoma between July 2007 and July 2012 in a single centre were analysed. Postoperative morbidity and mortality were evaluated in regard to postoperative platelet counts. Comparative analysis between patients with platelet counts ≤100 2x109/ l and >100 x109/ l at d1 was performed in regard to postoperative outcome.', 'Within this cohort, 43 patients (63%) suffered from histologically proven liver cirrhosis. Postoperative mortality was statistically significant associated with postoperative reduced platelet counts. Comparative analysis showed significantly elevated postoperative bilirubin levels and lower prothrombin time in patients with platelet counts ≤ 100 1x109/ l at d1.
Answer: Postoperative low platelet counts are associated with poor outcome after hepatic resection for hepatocellular carcinoma.


Output: Is low postoperative platelet count associated with negative outcome after liver resection for hepatocellular carcinoma?