Given an abstract, indicate which of the provided candidate titles (Option1 and Option2) best describes it (respond with the text of the title, not option1/2).

[Q]: Abstract: To evaluate the role of beta-adrenergic receptors in the control of human sweating, we studied six subjects during 40 min of cycle-ergometer exercise (60% maximal O2 consumption) at 22 degrees C 2 h after oral administration of placebo or nonselective beta-blockade (BB, 80 mg propranolol). Internal temperature (esophageal temperature, Tes), mean skin temperature (Tsk), local chest temperature (Tch), and local chest sweat rate (msw) were continuously recorded. The control of sweating was best described by the slope of the linear relationship between msw and Tes and the threshold Tes for the onset of sweating. The slope of the msw-Tes relationship decreased 27% (P less than 0.01), from 1.80 to 1.30 mg X cm-2 X min-1 X degree C-1 during BB. The Tes threshold for sweating (36.8 degrees C) was not altered as the result of BB. These data suggest that BB modified the control of sweating via some peripheral interaction. Since Tsk was significantly (P less than 0.05) reduced during BB exercise, from a control value of 32.8 to 32.2 degrees C, we evaluated the influence of the reduction in local skin temperature (Tsk) in the altered control of sweating. Reductions in Tch accounted for only 45% of the decrease in the slope of the msw-Tes relationship during BB. Since evaporative heat loss requirement during exercise with BB, as estimated from the energy balance equation, was also reduced 18%, compared with control exercise, we concluded that during BB the reduction in sweating at any Tes is the consequence of both a decrease in local Tsk and a direct effect on sweat gland.
Which is the apt title for the abstract? option1: Influence of beta-adrenergic blockade on the control of sweating in humans. option2: Permeability and secondary membrane formation of a high flux polysulfone hemofilter.
[A]: Influence of beta-adrenergic blockade on the control of sweating in humans.

[Q]: Abstract: The effects of cimetidine on the healing and recurrence of duodenal ulcers and gastric ulcers were compared. The extent of the acid secreting areas was examined by the endoscopic Congo red methylene blue test. Using the extent of acid secreting areas gastric ulcers were classified into ulcers with and without extensive acid secreting areas. Duodenal ulcers were all associated with extensive acid secreting areas. The gastric acid outputs in the basal state and after maximal stimulation with gastrin were highest in duodenal ulcers, and lowest in gastric ulcers without extensive acid secreting areas. Cimetidine treatment significantly promoted the healing of duodenal ulcers and gastric ulcers with extensive acid secreting areas when compared with placebo, but not of the gastric ulcers without extensive acid secreting areas. Cimetidine also significantly diminished the recurrence of duodenal ulcers, but not gastric ulcers with and without extensive acid secreting areas. These findings indicate that in Japan cimetidine promotes the healing of duodenal and gastric ulcers associated with high gastric acid production and prevents recurrence of duodenal ulcers, but has little or no influence on the healing and recurrence of gastric ulcers associated with low acid secretion.
Which is the apt title for the abstract? option1: Effects of cimetidine on the healing and recurrence of duodenal ulcers and gastric ulcers. option2: Blocking the filter vents of cigarettes [letter]
[A]: Effects of cimetidine on the healing and recurrence of duodenal ulcers and gastric ulcers.

[Q]: Abstract: We report a rare case of supra- and infratentorial arteriovenous malformations (AVMs), which were separate and consisted of aneurysmal dilations with two or three afferent arteries and efferent veins. Surgical resections were performed without the occurrence of additional neurological deficits. We discuss the treatment of multiple AVMs and stress that size and the structures involved are more important factors in the prognosis than the multiplicity of the lesions.
Which is the apt title for the abstract? option1: Supra- and infratentorial arteriovenous malformations with an aneurysmal dilatation: a case report. option2: Lipoprotein mutations in pigs are associated with elevated plasma cholesterol and atherosclerosis.
[A]:
Supra- and infratentorial arteriovenous malformations with an aneurysmal dilatation: a case report.