Objective To assess the effectiveness of different concentration of iodized salt for preventing iodine deficiency disorders. Methods Using the principle and method of systematic review, we searched Cochrane Library(from 1994 to Mar. 2007), Medline(from 1966 to Mar. 2007), BA(from 1969 to Mar. 2007), PubMed(from 1950 to Mar. 2007), OC1D(from 1950 to Mar. 2007), ISI Web of Knowledge(from 1966 to Mar. 2007), Vip (from 1989 to Mar. 2007), Wanfang(from 1997 to Mar. 2007), CBMDisc(from 1978 to Mar. 2007) and CNKI(1994 to Mar. 2007) and hand searched 6 relevant Chinese journals, including Chinese Journal of Preventive Medicine, Chinese Journal of Endemiology, Chinese Journal of Epidemiology, Chinese Journal of Control of Endemic Disease, Endemic Diseases Bulletin and Modern Preventive Medicine. We screened the for eligible studies according to the inclusion and exclusion criteria to be rigorously evealuatecl descriptly and qualitatively. Results Thirteen studies were included, of which, the first six were intervention trials with comparison, including two community intervention trials, which classified all objects into different groups, using iodized salt at different concentration as intervention, four were RCTs with different intervention methods, compare the iodized salt with other intervention measures. Seven were cross-sectional studies, which analyzed the iodine nutrition of people after the concentration of iodized salt was lowered down. Because of different interventions in control groups and different outcome measures, it was difficult to perform recta-analysis, a descriptive analysis of the results was presented. Most studies showed that urinary iodine level decreased as the concentration of iodized salt went down gradually. When the concentration of iodized salt went down to the best level recommended, goiter rate decreased obviously. Conclusions Iodized salt was considered as the hest method of iodine supply to prevent iodine deficiency disorders. But effectiveness of preventing iodine deficiency disorders with various concentration of iodized salt is different. To lower the concentration of iodized salt properly can not only prevent iodine deficiency disorders but also reduce the side effect of excess iodine intake to the minimum. And it can also save a lot of iodine resource. Well-designed community-based intervention trials with large sample size are needed to confirm the effect of different concentration of iodized salt on preventing iodine deficiency disorder.

The hemoglobin A1c(HbA1c) results can reflect the average level of blood glucose over the past 2-3 months,its clinical application value is transforming from evaluation indicator to diagnosis indicator.The application of HbA1c as a diagnostic indicator of diabetes is limited by many factors,such as multi-factor influence on measurement and its late start on standardization process in our country,optimal cut-point and the defect of HbA1c existing in the molecular level,etc.Therefore,clarifying the limitations of HbA1c in the practical application is of great significance for its clinical application.

4-Hydroxycoumarins ; poisoning ; Adolescent ; Adult ; Female ; Humans ; Male ; Rodenticides ; poisoning ; Young Adult

Objective To Analyze the examination meaning of b-type brain natriuretic peptide precursor (NT-proBNP),homocysteine and coagulation-fibrinolysis indexes for patients with acute cerebral infarction.Methods Selected 40 patients with acute cerebral infarction (experimental group) to hospital from March 2014 to May 2015 and 40 healthy check-up cases (control group).Then,compared the indicators in blood between the two groups of patients,namely homocysteine (Hcy),NT-proBNP,activated clotting time live enzymes enzyme (APTT),original activator inhibitory factor (PAI-1) and tissuetype fibrinolytic enzyme original activator (tPA).Meanwhile,also compared these indicators for the experimental group before and after treatment.Results Before treatment,the levels of Hcy,t-PA,NT-proBNP,PAI-1 and ATPP for experiment group were 17.7±3.6 μmol/L,29.4±7.9 μmol/L,3 212.8±2 511.4 ng/L,130.1±17.8 μmol/L and 37.8±4.5 s,respectively.The levels of Hey,t-PA,NT-proBNP,PAI-1 and ATPP for control group were 7.2± 2.1 μmol/L,15.1 ± 3.7 μmol/ L,198.7 ± 1 14.8 ng/L,67.8 ± 7.9 μmol/L and 37.8 ± 4.5 s,respectively.After treatment,the levels of Hcy,t-PA,NT-proBNP,PAI-1 and ATPP for experiment group were 12.2±1.5 μmol/L,18.2±2.3 μmol/L,348.7±194.8 ng/L,78.6±9.8 μmol/L and 32.2±4.5 s,respectively.Before treatment,the indicator of APTT for experiment patients was significantly shorter than it after treatment and that of the control group.The other four indicators were significantly higher than them after treatment and those of the control group.The differences were statistically significant (P ＜0.05).Conclusion Hcy,NT-proBNP,APTT,PAI-1,and t-PA had closely relation with the occurrence of acute cerebral infarction development,and they can be helpful to evaluate disease progression and predict prognosis for patients with acute cerebral infarction.

Adult ; Anemia, Macrocytic ; etiology ; Benzene ; poisoning ; Female ; Humans

Objective To explore the role of process management in preventing peripheral central venous catheter (PICC)-related bloodstream infections (CRBSI). Methods A standard process management policy was established for the uniform management of PICC in our hospital. The incidences of CRBSI before and after the implementation of this policy were compared. Results The incidences of CRBSI was 6.0‰ (48/79 793 ) every 1000 catheter-days before process management and 2.9‰ (29/99643) after process management (P =0.000).Conclusion Standard process management can effectively prevent and control CRBSI caused by PICC.

?AlM: To study the correlation between monocular mild myopic juvenile myopia degree and dominant eye.
? METHODS: Totally 158 patients with juvenile monocularly mild myopia in our hospital from December 2012 to December 2013 were retrospectively analyzed, and cylindrical mirror astigmatism was used for spherical equivalent conversion. On the basis of the myopic degree, they were divided into three groups, 30 cases in group A (-0. 25~-0. 75D), 92 cases in B group (-1. 0~-2. 0D), 36 cases in group C (-2. 25 ~ -3. 0D). The card hole method was selected to measure dominant eye for subjectsat nearly 33cm and 5m. After glasses correction of ametropia, the far and near dominant eyes were received measurement again.
?RESULTS:The monocular mild myopia of dominant eye was compared with the non-dominant eye adjustment function, and there was no significant difference ( P>0. 05 ) . The dominant eye, non - dominant eye mean diopter and other correlations of eyes in the three groups were compared, and there was no significant difference (P>0. 05). The dominant eye of three groups at 5m was compared, and there was significant difference (P<0. 05). The dominant eye of three groups at 33cm was compared, and there was significant difference (P<0. 05). Dominant eye at different visual distance was compared, and there was significant difference (P<0. 05). Monocular uncorrected eye was compared with dominant eye mild afte myopia glassesr, and there was significant difference (P< 0. 05).
?CONCLUSlON: The formation of myopic anisometropia is related to the degree of clearly seeing objects, although glasses correction can improve the clarity and visual, but affect the choice of the dominant eye, because the myopic anisometropia appears most early in the dominant eye, therefore optician correction stage, which should be taken into consideration, and avoid the severity of the adolescent myopia.

Biomarkers ; metabolism ; Cholesterol ; metabolism ; Coronary Disease ; Humans

OBJECTIVETo explore different regulatory effects of electroacupuncture (EA) at the same acupoint on the heart and the stomach.

METHODSEighty male SD rats were randomly divided into eight groups equally, i.e., the Neiguan (PC6) group, the Quchi (LI11) group, the Tianshu (ST25) group, the Danzhong (RN17) group, the Zusanli (ST36) group, the Sanyinjiao (SP6) group, the Xinshu (BL15) group, and the Weishu (BL21) group, 10 in each group. The regulatory effects of EA (2/15 Hz, 3 mA, 2 min) at different acupoints on the gastric motility (intragastric pressure) and the cardiac function (the left ventricular pressure) were observed. The mean values of effect of two-min pre-EA and after-EA were compared.

RESULTSCompared with the pre-EA in the same group, the left ventricular pressure decreased in the Neiguan (PC6) group, the Quchi (LI11) group, the Danzhong (RN17) group, the Sanyinjiao (SP6) group, and the Xinshu (BL15) group (P <0.05). The intragastric pressure increased in the Quchi (LI11) group, the Zusanli (ST36) group, the Sanyinjiao (SP6) group, and the Xinshu (BL15) group, while it decreased in the Tianshu (ST25) group, the Danzhong (RN17) group, and the Weishu (BL21) group (P <0.05). The difference of the left ventricular pressure was sequenced from high to low as Xinshu (BL15) >Danzhong (RN17) >Neiguan (PC6) >Sanyinjiao (SP6) >Quchi (LI11). The difference of the intragastric pressure was sequenced from high to low as Tianshu (ST25) >Weishu (BL21) > Xinshu (BL15) > Danzhong (RN17) > Zusanli (ST36) > Sanyinjiao (SP6) > Quchi (LI11).

CONCLUSIONSEA at the same acupoint (2/15 Hz, 3 mA) showed different regulatory effects on the heart and stomach. There existed some difference in the direction and size due to the acupoint location, meridians, dominant nerve segment or relating organs. A fixed effect direction to the specific target was also shown.

Acupuncture Points ; Animals ; Electroacupuncture ; Heart ; physiology ; Male ; Meridians ; Rats, Wistar ; Stomach ; physiology

Plant transgenic system secures a safe,economical and reliable supply of recombinant proteins.Plant oilbody expression system simplifies the downstream purification steps and reduces capital investment based on the nature of oleosin including high expression and easy extraction.The structures and characteristics of seed oil body and oleosin were reviewed.And the research progress and industry of the seed oil body expression system,as a new bioreactor,to produce valuable recombinant proteins were discussed.The benefits and questions of the oil body expression system were also set forth.New medicine haFGF based on the oilbody system is being developed,and its biological activity is being analyzed.As a new resource for medicine protein,oilbody expression system will be perfected and applied broadly.