Objective To investigate the therapeutic effects of two parenteral nutrition (PN)methods in preterm infants. Methods Forty-two preterm infants who could not tolerate full enteral feeding were randomly divided into two groups. Twenty-two cases of the experimental group started to receive amino acids (AA) by 1.0 g/(kg·d) within 24 h after birth. Then AA was increased by 1.0 g/(kg·d)each day to maximum of 3.0 g/(kg·d)The dose and add method of intralipid was given alike AA within 48 h. Complete PN was achieved 5 d after birth. Twenty cases of the control group started to receive AA by 0. 5 g/(kg·d) ,and then increased by 0. 5 g/(kg·d) each day to maximum of 3.0 g/(kg ·d). The dose and add method of intralipid was given alike AA after 72 h. Complete PN was achieved at 8 or 9 d after birth. The feeding results was observed,the blood biochemistry was monitored at 72 h and 10 d after birth,and the incidence of complication was recorded. Results In comparison with the control group, time returning to birth weight, the weight loss rate, PN time and time returning to full enteral feeding were shorter in the experimental group (P ＜0. 01). There were no significant differences in the blood glucose,total bilirubin, urea nitrogen,carbon dioxide combining power,total cholesterol and the incidence of complication between the two groups (P ＞ 0. 05). Conclusion Quantity sufficient and early parenteral nutrition can be tolerated by preterm infants within 24 h after birth.

Objective To assess the health risk of soil-mouth exposure of soil heavy metal pollution by in vitro method. Methods Collected the soil sampling from the heavy metals contaminated field and roadside. Digested the soil sample by in vitro device and determined the content of Cd, Pb, Zn in the solution in the simulated stomach phase and intestine phase respectively with ICP-MS after centrifuging. Calculated the exposure and assess health risk. Results Bioaccessibility of Cd, Pb and Zn at the stomach phase was 21%-33%, 2%-28%, 33%-43% respectively in the polluted areas, and 27%, 23%, 95% in the control area; At the intestine phase was 16%-19%, 3.4%-4.9%, 8%-14% in polluted areas and 11%,2.6%,18% in control area respectively. The amount of available Cd, Pb and Zn in the stomach phase was 0.04-1.46 ?g/d, 3.09-5.53 ?g/d, 3.86-9.39 ?g/d in polluted areas and 0.01 ?g/d, 0.74 ?g/d ,5.64 ?g/d in control area for children, and 0.01-0.36 ?g/d, 0.77-3.88 ?g/d, 0.97-9.85 ?g/d in polluted areas and 0.00 ?g/d. 0.19 ?g/d, 1.41 ?g/d in the control area for adult ; at intestine phase the amount of available Cd, Pb and Zn was 0.03-0.71 ?g/d, 0.50-9.92 ?g/d, 1.26-9.55 ?g/d in polluted areas and 0.00 ?g/d, 0.08 ?g/d, 1.07 ?g/d in the control area respectively for children, 0.01-0.18 ?g/d, 0.11-2.48 ?g/d, 0.31-2.39 ?g/d in the polluted areas and 0.00 ?g/d,0.02?g/d,0.27 ?g/d in the control area respectively for adult. Conclusion Heavy metals exposure through soil-mouth pathway will increase the total health risk of heavy metal to exposed population.

Esophageal gastric variceal bleeding(EGVB)is a serious complication of cirrhotic portal hypertension with high mortality rate. Prevention of EGVB is an important mean to improve the survival of patients. Non-selective beta-blockers(NSBBs)is one of the first-line drugs for primary and secondary prevention of EGVB,however,only about 1 / 3 of cirrhotic patients respond to this treatment when evaluated by hepatic venous pressure gradient( HVPG). This may be related to the genetic polymorphisms of NSBBs’receptors and the metabolic enzymes. This article reviewed the progress in study on therapeutic efficacy of NSBBs and its influencing factors for preventing EGVB in cirrhotic patients.

Objective To study the health effects and contributing factors of cold and humid residence in rural areas with cold climate. Methods 213 rooms of 125 families in rural areas of Huinan county,Jilin province were observed.The microclimate,the temperatures on the surface of inside and outside walls,the condition of heating and heat insulation of 58 rooms among 213 rooms were determined according to the various condition of the cold and humid environment.The health questionnaire,physical examination,determination of skin temperature and tachogram of finger,test of picking up beads were carried out among residents with residential history of more than 5 years. Results The average skin temperature of bodies and fingers and total amount of beads picked up among the observed residents were significantly lower than those of control group.Significant positive correlation was found between the skin temperatures of fingers of observed residents and their indoor air temperatures( t=0 7839,P

OBJECTIVE:To study anti-inflammatory,analgesic and anti-fatigue effects of polysaccharides from Acanthopanan trifoliatus (ATMP) in rats and mice. METHODS:In hot plate experiment,150 mice were randomly divided into normal control group (constant volume of normal saline),aspirin group [200 mg/(kg·d)],and ATMP high-dose,medium-dose and low-dose groups [400,200,100 mg(gross polysaccharide)/(kg·d)];the threshold of pain was determined,and analgesic effect of ATMP was investigated. 150 mice were included in exhaustive swimming test and then randomly divided into normal control group(con-stant volume of normal saline),Chongcao yangshen jijing group [400 mg/(kg·d)by total saponins],and ATMP high-dose,medi-um-dose and low-dose groups [200,100,50 mg(gross polysaccharide)/(kg·d)];the body weight and exhaustive swimming time of mice were determined,and biochemical process was used to determine the contents of hepatic glycogen and muscle glycogen, and serum levels of BUN,LDH and CK in mice. The anti-fatigue effect of ATMP was investigated. In carrageenan-induced paw swelling experiment,40 rats were divided into normal control group (constant volume of normal saline),dexamethasone acetate group [5 mg/(kg·d)],ATMP high-dose,medium-dose and low-dose groups [100,50,25 mg(gross polysaccharide)/(kg·d)];the degree of paw swelling was recorded,and anti-inflammatory of ATMP was investigated. RESULTS:Compared with normal control group,the threshold of pain in mice were increased in ATMP 400,200,100 mg(gross polysaccharide)/(kg·d)groups;the exhaus-tive swimming time of mice were prolonged significantly,and the contents of hepatic glycogen in mice were increased significant-ly,while serum contents of CK decreased in ATMP 200,100 mg(gross polysaccharide)/(kg·d)groups;the content of muscle gly-cogen in mice was increased significantly in ATMP 200 mg (gross polysaccharide)/(kg·d) group,while serum contents of BUN and LDH were decreased;the degree of paw swelling in rats was decreased in ATMP 100,50,25 mg(gross polysaccharide)/(kg·d) groups,with statistical significance (P<0.01 or P<0.05). There was no significant difference in body weight of mice before and after medication. CONCLUSIONS:ATMP has significant analgesic and anti-fatigue effects on mice and anti-inflammatory effect on rats.

Objective To study the value of CT and barium radiograpy in diagnosis of gastric schwannoma.Methods A retrospectiveanalysis was made on imaging of 8 patients with pathologically approved gastric schwannoma.Plain abdominal CT scan was performed in all patients, additional enhanced CT scan was carried out in 6 cases and barium radiography of upper digestive tract was carried out in 5 cases. Results The lesions localized in fundus ventriculi in 2 cases, curvatura ventriculi minor in 4 cases and pars pylorica in 2 cases. Three main types were seen: localized mass type (n=4), localized thickening of gastric paries type (n=2) and huge mass type (n=2).Conclusion In comparison with barium radiography of upper digestive tract, CT can accurately demonstrate the shape, the location and internal structure of lesions.Three main patterns of this lesion also can be showed clearly by CT scans and suggestive diagnosis can be made in some patients combined with barium radiography of upper digestive tract images.

OBJECTIVE To evaluate the clinical effect of a new foaming skin disinfectant Angaote using in operating room.METHODS The Angaote group included 48 persons of operating room who disinfected their hands and their bacterial culture results were detected retrospectively and 544 surgical cases whose incision infection rate was detected.The control group included 56 persons of operating room using alcohol for hands disinfection.RESULTS The bacterial culture results of disinfected hands were all negative in both groups.There were 15 cases of incision infection in Angaote group,the infection rate was 2.8%,compared wih 26 cases and 3.6% in alcohol group.The infection rate between the two groups showed no statistically significant difference(?2=0.690,P=0.253).CONCLUSIONS Correct application of new foaming skin disinfectant Angaote can also obtain surgical asepsis,without increase in incision infection rate.

Objective: To study the anticarcinogenic effects of raisin grape produced in Turpan in vitro; to determine the content of the components related to anticarcinogenesis.Methods: The effect of Turpan raisin grape on the growth of four tumor cell lines and one normal cell line was observed. The survival rate and protein content of cells were detemined. Four components in the Turpan raisin grape were measured, including vitamin C, polysaccharide, bioflavonoids and selenium.Results: The extracts of Turpan raisin grape significantly inhibited the growth of four tumor cell lines (P

Objective: The antitumor mechanism of Pleurotes sapidus on 4 kinds of tumor cell lines was studied. The active components of its ethanol extracts were studied. Methods:Using techniques of cell culture in vitro, phytochemical methods, FACS and RT-PCR, expressions of p53 and fas gene of four tumor cell lines treated with Pleurotas sapidu were analysed. Results:The apoptosis rates were remarkably increased after treated by ethanol extracts (0.1g/ml) and water extracts (0.1g/ml) for 12 h and 24 h respectively. The expression of P53 protein in the groups of ethanol and water extracts were significantly increased, and the gene expressions of p53 and fas were aslo highly up-regulated. Conclusion:The antitumor effect of Pleurotas sapidus on tumor cell lines in vitro is evident, and its mechanisms are probably associated with the regulation of apoptosis by inducing the gene expressions related to apoptosis.

Objective To investigate the effect of CDT1 gene over-expression on the apoptosis and cell cycle distribution in liver cells with a characteristic of genomic instability induced by radiation(GIR).Methods Lentivirus particles were transferred into liver cells of GIR to up-regulate the expression of CDT1 gene.The apoptosis and the cell cycle were detected by flow cytometry (FCM).The expression changes of p53,ATM,ATR,Bcl-2,and Caspase-3 genes were analyzed by real-time fluorescence quantitative PCR.Results CDT1 gene was efficiently increased by the gene transfection(t =15.56,P ＜ 0.05).In the CDT1 over-expressed cells,while the apoptosis ratio was increased (t =4.19,P ＜ 0.05),the expressions of p53 and Bcl-2 gene were decreased (t =-4.21,-2.06,P ＜ 0.05),but the expression of ATM,ATR and Caspase-3 changed with no significant difference compared with control.Conclusions Over-expression of CDT1 could regulate genomic instability through apoptosis pathway and checkpoint independent of p53.