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: Although diabetic patients often have gastrointestinal complications, the gastric mucosal function in diabetes has not been well documented.', 'To investigate the effect of fasting on the gastric mucosa in C57BL/KsJ-db +/+ db (db/db) mice, genetically non-insulin-dependent diabetic animals.', 'Blood glucose levels, gastric mucosal morphology, and the amount of gastric mucin were examined before and after 18 h of fasting with free access to water in db/db mice and their non-diabetic littermates (db/m).', 'Although 18 h of fasting reduced the blood glucose levels of both db/db and db/m mice, fasting decreased the amount of gastric adherent mucin and caused haemorrhagic gastric lesions only in db/db mice. After fasting, oral administration of ethanol induced much more severe gastric damage in db/db than in db/m mice. The above fasting-induced gastric damage such as haemorrhagic lesions, loss of the mucin, and the increased sensitivity to ethanol worsened as the duration of diabetes became longer. Glucose ingestion in drinking water during the fasting counteracted the fall in blood glucose and prevented the decrease in the amount of gastric mucin and the formation of gastric mucosal lesions in db/db mice.
Answer: These findings indicate that fasting-induced glucose deficit causes gastric mucosal lesions and increases the susceptibility of gastric mucosa to noxious agents owing to the loss of mucus glycoprotein in db/db mice. Prolonged diabetes is likely to augment the severity of fasting-induced impairment of the gastric mucosal function.

A: Does fasting induce impairment of gastric mucosal integrity in non-insulin-dependent diabetic ( db/db ) mice?
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Q: Context: A new protocol for postoperative calcium management was developed with the aim of achieving an increase in the proportion of patients being safely discharged on the first postoperative day. We present our experience with the first 50 patients treated under this new protocol.', 'A cohort study was performed involving the first 50 patients admitted for total or completion thyroidectomy, those data were then compared with a control group. Intact PTH (iPTH) was measured at 4-h postoperatively and patients with iPTH in the normal range were discharged on the first postoperative day.', 'Mean age and sex distribution were similar in both groups. Mean lowest postoperative corrected calcium levels in the study group were 2.19 mmol/l and 2.15 mmol/l in the control group (P = 0.24). Parathyroid auto-transplantation was associated with low PTH levels (risk ratio = 0.49). Over 50% of patients (n = 27) were successfully discharged on the first postoperative day in the study group and no patient required readmission. Length of stay was significantly shorter in the study group, mean 1.64 vs. 2.20 days (P < 0.05).
Answer: The use of iPTH accurately predicts hypocalcaemia after total thyroidectomy and can be used to facilitate safe early discharge for patients.

A: Does postoperative PTH measurement facilitate day 1 discharge after total thyroidectomy?
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Q: Context: The purpose of this study was to investigate the relation between preoperative chronic cerebral ischemia and postoperative new cerebral ischemia in patients undergoing carotid endarterectomy (CEA).', 'We reviewed the diffusion weighted magnetic resonance images (DWI) of the 51 patients (37 men, mean age 68.8\u2009±\u20098.4 years) undergoing isolated CEA in the preoperative and early postoperative period. The number, anatomic location and the size of new ischemic lesions were recorded.', 'In the preoperative period, 28 (54.9 %) patients were symptomatic. There was chronic cerebral infarction in the preoperative DWI images of 17 patients (33.3 %). In the postoperative period, there was newly developed cerebral ischemia in postoperative DWI images of eight (15.7 %) patients. Six of the eight patients with newly developed cerebral ischemia had chronic cerebral infarction in their preoperative DWI images. The incidence of newly developed cerebral ischemia after CEA in patients with preoperative chronic cerebral ischemia was significantly higher than the incidence in patients without preoperative chronic cerebral ischemia (p\u2009=\u20090.01).
Answer: The results of the present study suggest that preoperative chronic cerebral ischemia may aggravate postoperative newly developed cerebral ischemia in patients undergoing CEA.

A:
Is previous chronic cerebral infarction predictive for new cerebral ischemia after carotid endarterectomy?
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