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Reviews the nonequilibrium features of the magnetic susceptibility of spin glasses. Discussion on the equilibrium effects of the magnetic susceptibility caused by aging of the zero-field spin-glass state; Investigation of the aging process of the zero-field state by low-field alternating current susceptibility and zero-field-cooled susceptibility measurements; Discussion on the characteristic time variation of the field-cooled susceptibility.

RATIONALE: Gastroesophageal reflux disease (GERD) is common among patients with asthma; however, studies investigating the effect of proton pump inhibitors on asthma outcomes report conflicting results. OBJECTIVES: To investigate the effect of esomeprazole 40 mg once or twice daily on asthma outcomes in patients with concomitant symptoms of GERD. METHODS: This 26-week, randomized, double-blind, placebo-controlled study (NCT00317044) included adult patients (18-70 yr) with moderate-to-severe asthma and symptomatic GERD. The change in morning peak expiratory flow (primary variable), evening peak expiratory flow, FEV(1), asthma symptoms, Asthma Quality of Life Questionnaire, Reflux Disease Questionnaire, and tolerability were assessed. MEASUREMENTS AND MAIN RESULTS: A total of 961 patients were randomized and 828 completed the study. Relative to baseline, improvement in morning peak expiratory flow was observed for both esomeprazole 40 mg once daily (+3.5 L/min; 95% CI, -3.2 to 10.2) and 40 mg twice daily (+5.5 L/min; 95% CI, -1.2 to 12.2), although no statistically significant between-treatment differences were apparent. At treatment end, both doses of esomeprazole significantly improved FEV(1) versus placebo (+0.09 L and +0.12 L; P = 0.0039 and P < 0.0001, respectively). However, only esomeprazole 40 mg twice daily demonstrated a significant improvement when FEV(1) was calculated over the entire 26-week period (+0.07 L; P = 0.0042). Significant improvements in Asthma Quality of Life Questionnaire total score were demonstrated for both esomeprazole doses compared with placebo (+0.28 and +0.41; P = 0.0006 and P < 0.0001, respectively). CONCLUSIONS: Esomeprazole may improve pulmonary function and asthma-related quality of life. However, the improvements were minor and of small clinical significance. [ABSTRACT FROM AUTHOR]

Rationale: Gastroesophageal reflux disease (GERD) is common in patients with asthma, suggesting an interaction between the two conditions. Objectives: To assess the effect of gastric acid suppression with the proton pump inhibitor esomeprazole on asthma outcomes in subjects with persistent moderate to severe asthma treated with antiinflammatory asthma medication. Methods: In this double-blind study, subjects were randomized to receive esomeprazole 40 mg or placebo twice daily for 16 wk. According to nocturnal respiratory symptoms (NOC) and GERD, subjects were divided into three strata: GERD-/NOC+, GERD+/NOC-, and GERD+/NOC+. Measurements and Main Results: A total of 770 subjects were randomized. There was no statistically significant improvement in morning peak expiratory flow (PEF) over placebo in the overall study population: 6.3 L/min (p = 0.061). Over the whole treatment period, in GERD+/NOC+ subjects (n = 350), esomeprazole provided an 8.7-L/min improvement (p = 0.03) in morning PEF, and a 10.2-L/min improvement (p = 0.012) in evening PEF over placebo. Among 307 subjects taking long-acting beta(2)-agonists, improvements over placebo were observed in morning PEF (12.2 L/min, p = 0.017) and in evening PEF (11.1 L/min, p = 0.024); these improvements were more pronounced in GERD+/NOC+ subjects. Esomeprazole 40 mg twice daily was well tolerated and no safety concerns were noted. Conclusions: Esomeprazole improved PEF in subjects with asthma who presented with both GERD and NOC. In subjects without both GERD and NOC, no improvement could be detected. [ABSTRACT FROM AUTHOR]