Objective To observe the influence mannitol combined with psychological intervention on post-operative swelling of extremities fractures.Methods96 patients from January 2013 to March 2015, were randomly divided into observation group and control group of 48 cases.In the control group were treated with mannitol treatment, observation group were treated with mannitol combined with psychological intervention, the two groups were recorded cases of fracture after swelling sweling.Results①After treatment, patients swelling time was (7.02+1.02) d, than the control group (9.87±1.23) d, and the difference was statistically significant (P<0.05).②The observation group were 6 days and 9 days after treatment forearm limb circumference, respectively (25.76±1.06) cm, (23.15±0.76) cm, were lower than in the control group (27.12±1.10) cm, (24.20±0.79) cm, and the difference was significant sex (P<0.05).The observation group were 6 days and 9 days after treatment were leg limb circumference (35.18±0.74) cm, (32.04±0.31) cm, were lower than in the control group (36.76±0.78) cm, (33.17±0.37) cm, and the difference was significant sex (P<0.05).③ Observation group patients after the treatment of anxiety and depression were on average lower than the control group, and the difference was statistically significant (P<0.05).ConclusionMannitol combined with psychological intervention effect fracture surgery swelling of extremities significant, can significantly reduce the postoperative pain is worthy of further research and application.

Objective: To investigate the interaction between methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism and sleeping duration on risk of stroke in a Chinese Han ethnic population. Methods: In the case-control study and epidemiological investigation, the self-reported sleep duration and MTHFR C677T polymorphism of 245 patients with cerebral infarction, 222 patients with cerebral hemorrhage and 282 controls were collected. Multiple logistic regression was performed to analyze the interaction between MTHFR C677T polymorphism and sleeping duration on risk of stroke. Results: After adjustment for major confounding variables, multiple logistic regression analysis showed that: (1) There was significant association between long sleep duration (>8 hours of sleep per night) and cerebral infarction (OR=3.90; 95% CI:2.43-6.26), but not for cerebral hemorrhage (OR=1.16, 95% CI: 0.71-1.92). On the other hand, insomnia (sleep duration less than 6 hours) was neither associated with cerebral infarction nor hemorrhage. (2) MTHFR TT genotype increased the risk of cerebral infarction significantly (OR=2.01; 95% CI:1.12-3.61), but not for cerebral hemorrhage (OR=1.16,95% CI:0.71-1.92). (3) There was a significant synergistic effect of interaction between MTHFR TT677 genotype and long sleep duration on risk of cerebral infarction (OR=6.22; 95% CI:2.44-15.83). Conclusion: MTHFR TT677 genotype and long sleep duration increase the risk of cerebral infarction independent of confounding factors, respectively. Furthermore, there is a significant synergistic effect between MTHFR TT677 genotype and long sleep duration on risk of cerebral infarction in the Chinese Han ethnic population.