ObjectiveTo explore the relationship between the status of vitamin A and the level of AntiHBs in infants.Methods One hundred and ninty eight infants met the criteria were recruited into an investigation through local vaccination service.Two milliter venous blood was drawn from each studied child,and the infants' feeding information of successive 72 hours was collected through the 24-hour dietary recall method and 2-day diet records method.The nutrients intakes were analyzed with a NCCW software for calculation.The concentration of serum vitamin A and Anti-HBs was analyzed by HPLC and ECLIA,respectively.The logarithm of anti-HBs concentrations was compared among sub-clinical vitamin A deficiency (87 cases ),suspicious subclinical vitamin A deficient group (51 cases )and normal group (60 cases )and the relationship between the logarithm of anti-HBs concentrations and vitamin A were analyzed.ResultsThere were only 19.7％ of children whose average daily intake of vitamin A reached the 80％ of recommended nutrient intakes(RNI).The incidence rate of vitamin A malnutrition was 67.2％.The serum Anti-HBs GMC was 402.8 U/L The positive rate was 98.0％.There were significant differences on Anti-HBs Ig GMC between Sub-clinical vitamin A deficiency (SVAD) group,suspicious SVAD group and normal group( F =15.88,P ＜ 0.001 ).The correlation coefficient between the level of serum vitamin A and Anti-HBs lg GMC was 0.441 ( P =0.01 ).ConclusionThe results show that the level of serum vitamin A may have influence on the maintenance of an effective anti-HBs level against hepatitis B virus.

Objective To understand the prevalence,treatment and influence factors of hypertension in maintenance hemodialysis (MHD) patients in Anhui Province.Methods A total of 2724 adult patients on MHD from January 1st 2014 to March 31st 2014 in 26 hospitals of southern,northern and central Anhui Province were investigated.Their demographic characteristics,primary disease,complications,medications,dialysis and laboratory examination were explored.The prevalence treatment rate and control rate of hypertension were analyzed.Associated factors for controlling hypertension [systolic blood pressure (SBP) ＜ 140 mmHg and diastolic blood pressure (DBP) ＜ 90 mmHg] were assessed by logistic regression analysis.Results (1) The prevalence of hypertension in the hemodialysis patients was 87.0％.Their treatment rate and control rate were 93.2％ and 23.9％ respectively.The average of SBP was (145.90±21.18) mmHg,and the DBP on average was (83.60± 12.21) mmHg.The most commonly used anti-hypertensive drug is calcium channel blocker (88.2％).Over one third (45.7％) of patients were treated with two kinds of anti-hypertensive drug,26.2％ with 1 kind,21.7％ with 3 kinds,and 6.4％ with 4 kinds or more.(2) Compared with non-hypertension patients,patients with hypertension have older age,higher body mass index (BMI),phosphorus,SBP and DBP,as well as lower hemoglobin and Kt/V (all P ＜ 0.05).(3) The multivariate logistic regression analysis showed that Ca ＞ 2.50 mmol/L (OR=2.084,95％CI 1.008-4.307,P=0.047) positively correlated with controlling hypertension,while smoke (OR=0.594,95％CI 0.356-0.911,P=0.046) and BMI 18.5 ～ 23.9 kg/m2 (OR=0.516,95％CI 0.293-0.907,P=0.022) negatively correlated with it.Conclusions High prevalence yet low control rate of hypertension in MHD patients in Anhui Province were observed.Hypocalcemia may be a protective factor for hypertension control,while smoke and BMI may be risk factors for it.