Objective To investigate the prevalence of hypertension in ocean seamen and major influencing factors,as well as the association between hypertension and serum microRNA21 and microRNA133a.Methods Health examination and a questionnaire survey were performed for 780 ocean seamen who underwent physical examination in an international travel healthcare center in Fujian,China from January to June,2014.TaqMan RT-qPCR was used to measure the serum levels of microRNA21 and microRNA133a in seamen with hypertension.Results The prevalence of hypertension differed significantly between the ocean seamen with different ages,education levels,marital status,body mass index (BMI) values,drinking frequencies,and numbers of sailing years (P＜0.05).The prevalence rate of hypertension in the ocean seamen increased with the increasing drinking frequency (x2=9.02,P＜0.05),decreased with the increase in degree of education (x2=1 1.578,P＜0.05),and increased with the increase in the number of sailing years (x2=28.06,P＜0.05).The hypertensive ocean seamen had significantly higher expression levels of microRNA21 and MicroRNA133a than the healthy ocean seamen (microRNA21:7.87±5.46 vs 1.03 ±0.80,P ＜0.05;MicroRNA133a:7.45±1.94 vs 4.52±1.15,P＜0.05).The multivariate analysis showed that a high level of microRNA21 (OR=1.61,95％CI:1.22～2.11),a high level of microRNA133a(OR=1.52,95％CI:1.24～1.87),drinking(OR=1.64,95％CI:1.08～2.50),overweight based on BMI(OR=1.18,95％CI:1.07～1.30),and many sailing years (OR=2.89,95％CI:1.14～7.30) were risk factors for hypertension.Conclusion The prevention and treatment of hypertension in ocean seamen should be enhanced.Excessive drinking should be controlled,and sailing time should be arranged reasonably.The microRNA21 and microRNA133a may be associated with the development and progression of hypertension in ocean seamen.

Objective To investigate the prevalence of hypertension in ocean seamen and major influencing factors,as well as the association between hypertension and serum microRNA21 and microRNA133a.Methods Health examination and a questionnaire survey were performed for 780 ocean seamen who underwent physical examination in an international travel healthcare center in Fujian,China from January to June,2014.TaqMan RT-qPCR was used to measure the serum levels of microRNA21 and microRNA133a in seamen with hypertension.Results The prevalence of hypertension differed significantly between the ocean seamen with different ages,education levels,marital status,body mass index (BMI) values,drinking frequencies,and numbers of sailing years (P＜0.05).The prevalence rate of hypertension in the ocean seamen increased with the increasing drinking frequency (x2=9.02,P＜0.05),decreased with the increase in degree of education (x2=1 1.578,P＜0.05),and increased with the increase in the number of sailing years (x2=28.06,P＜0.05).The hypertensive ocean seamen had significantly higher expression levels of microRNA21 and MicroRNA133a than the healthy ocean seamen (microRNA21:7.87±5.46 vs 1.03 ±0.80,P ＜0.05;MicroRNA133a:7.45±1.94 vs 4.52±1.15,P＜0.05).The multivariate analysis showed that a high level of microRNA21 (OR=1.61,95％CI:1.22～2.11),a high level of microRNA133a(OR=1.52,95％CI:1.24～1.87),drinking(OR=1.64,95％CI:1.08～2.50),overweight based on BMI(OR=1.18,95％CI:1.07～1.30),and many sailing years (OR=2.89,95％CI:1.14～7.30) were risk factors for hypertension.Conclusion The prevention and treatment of hypertension in ocean seamen should be enhanced.Excessive drinking should be controlled,and sailing time should be arranged reasonably.The microRNA21 and microRNA133a may be associated with the development and progression of hypertension in ocean seamen.

Enterotoxigenic Escherichia coli（ETEC）infection can induce watery diarrhea，leading to dehydration，electrolyte disturbance，and even death in severe cases. Recombinant B subunit/inactivated whole-cell cholera（rBS/WC）vaccine is effective in preventing ETEC infectious diarrhea. On the basis of the latest evidence on etiology and epidemiology of ETEC，as well as the effectiveness，safety，and health economics of rBS/WC vaccine，National Clinical Research Center for Child Health（The Children’s Hospital，Zhejiang University School of Medicine）and Zhejiang Provincial Center for Disease Control and Prevention invited experts to develop expert consensus on rBS/WC vaccine in prevention of ETEC infectious diarrhea. It aims to provide the clinicians and vaccination professionals with guidelines on using rBS/WC vaccine to reduce the incidence of ETEC infectious diarrhea.