Objective To investigate and analyze the constitution and health condition of senior high school graduate students,and to find methods to improve and promote teenagers' health.Methods Seventy-four thousand six hundred and twenty-four senior high school students graduated from the vear 2003 to 2007 were taken the health examination according to common university and college recruitment examination standard by special medical personnel.The whole data were statistically analyzed.Results The data showed that there were 30 cases of acute viral hepatitis,41 cases of infiltrative pulmonary tuberculosis,5 cases of congenital heart diseases,the rate of hepatitis B virus(HBV)infection was 9.0%(6959/74 624),nearsightedness 82.0%(61 082/74 624);and that the rate of purely qualification,unqualified quantity and specialty limit rate(contain Single disease accumulated) for registering was 14.0%,72 cases and 93.0%(69 593/74 624) respectively.Conclusion The constitution of senior high school graduate students was unsatisfactory.

Objective To study the clinical effect of percutaneous laser disc decompression(PLDD) combined with ozone injection in the treatment of cervical spondylosis.Methods 183 cases of cervical spondylosis were randomly divided into two groups.One group of 80 cases with 118 cervical discs herniation were treated with PLDDonly.while the other group of 103 cases with 142 cervical discs herniation were treated with PLDD combined with ozone injectlon.The patients were followed up for 3 to18 months(mean 7 months).The clinical effects were assessed according to the Japanese Orthopaedic Association scoring system(JOA score)and the improvement rates of the two groups were compared.Results 167 cases were followed up.The average point of the group treated with PLDD is 15.2 and the improvement rate is 74.7%.The average point of the group treated with PLDD combined with ozone injection is 16.3 and the improvement rate is 91.3%.The difference between two groups has statistical significance(P＜0.05).Conclusion The treatment of cervical spondylosis with PLDD combined with ozone injection is safe.painless and minimally invasive.The clinical effect is impmved tremendously and much better than monotherapy.

0.05). However, egg production (0.37?0.22 egg/hen? day) and feed efficiency(0.21 ?0.11 egg kg/feed kg) in group 4(FSD) increased 54.2% and 61.5% respectively. The results from this study showed that egg cholesterol significantly decreased when laying hens were fed fiber-sequestrant.

Boron neutron capture therapy (BNCT) is a new method for the precise treatment of cancers.By this method, cancer cells can be selectively killed by α particles and recoiling 7Li nuclei generated by the nuclear fission reaction occurring when the 10B isotope atoms in cancer cells capture thermal neutrons.The key to a successful BNCT is to deliver sufficient 10B into the cancer cells.The purpose of this review is to introduce the principles of BNCT and review recent progress in the development of neutron sources and boron delivery agents, as well as the result of BNCT clinical trials.

Objective To analyze infarcts distribution and vascular malformation in patients with multiple infarcts in the posterior circulation and to investigate their correlation with the disease prognosis.Methods Thirty-four patients who had more than one infarct in the posterior circulation as shown on MRI were enrolled in the study.The digital subtraction angiography (DSA) of aortic arch and whole brain were performed on all patients and the images were analyzed and re-evaluated by two senior clinicians respectively.All the patients were assessed using Modified Rankin Scale (MRS) at discharge and correlation of infarcts distribution and vascular malformation with prognosis was evaluated.Results Infarct lesions most often involved pons (22 patients) and the middle (pons and anterior inferior cerebellum) plus distal territories (rostral brainstem, superior cerebellum and occipital and temporal lobes, 12 patients).Vascular abnormality was found in 76.5% (26/34) of the patients.The common vascular lesions involved vertebral artery (14 patients), intracranial vertebral artery (13 patients) and basilar artery (7 patients).The incidence of poor prognosis was 20.6% with 17.6% the severe disability rate and 2.9% the mortality rate.Patients with multiple lesions in proximal, middle and distal territories or basilar artery were likely to have poor prognosis.Conclusion Vascular abnormality is the main etiological factor for multiple infarcts in the posterior circulation.Infarcts distribution and the location of vascular lesions were key factors in predicting prognosis.

Objective To investigate the effects of microRNA-155 (miR-155) inhibitor on JAK/STAT1 (Janus kinase/signal transducer and activator transcription 1) signaling pathways in the injured lung tissue induced by lipopolysaccharide (LPS).Methods One hundred and twenty BALB/c mice were randomly divided into control group (n =40),LPS group (n =40),and inhibitor + LPS group (n =40).LPS group and inhibitor + LPS group were made by injection of LPS 20 mg/kg intra-peritonealy,whereas equivalent volume of normal saline was given instead in the control group.The 80 mg/kg of miR-155 inhibitor was injected into caudal vein 24 h before LPS injection in inhibitor + LPS group.Mice were sacrificed at 6 h,12 h,24 h,and 48h separately after LPS injection,and lung tissue were collected.The levels of tumor necrosis factor-α (TNF-α) and interleukin-10 (IL-10) of lung tissue were measured using the enzyme-linked immunosorbent assay (ELISA).Using histopathological examination,the injury of lung tissue was evaluated.The expressions of miR-155,STAT1 mRNA,SOCS1 mRNA in lung tissue were assayed by fluorescent quantitative reverse transcription polymerase chain reaction (qRT-PCR).Results The miR-155 expression induced by LPS increased at 6 h,12 h,24 h and decreased at 48 h.The miR-155 expressions in LPS group were (8.52 ± 1.12) at 6 h,(11.04 ±0.99) at 12 h,(15.84 ±0.80) at 24 h and (4.03 ± 2.55) at 48 h.In the inhibitor + LPS group,the expressions of miR-155 were lower compared with LPS group,showing significant differences at 12 h (t =6.08,P ＜ 0.01),and at 24 h (t =23.64,P ＜ 0.01).STAT1 mRNA and SOCS1 mRNA both reached peak levels at 6 h after LPS injection.The levels of STAT1 mRNA in LPS group were higher than those in inhibitor + LPS group,showing significant differencesat6h (t=4.41,P＜0.01),12h(t=2.69,P＜0.05),and24h (t=3.62,P＜0.01).The levels of SOCS1 mRNA in inhibitor + LPS group were higher than those in LPS group,showing significant differences at 6 h (t =4.55,P ＜0.01),12 h (t =4.12,P ＜0.01),24 h (t =2.38,P ＜ 0.05).TNF-α reached its peak value at 6 hours and IL-10 reached its peak value at 48 hours.Both TNF-α and IL-10 were higher in LPS group than those in inhibitor + LPS group showing significant differences at 6 h,12 h,24 h (P ＜0.01).The pathologic examination indicated the lung injury in inhibitor + LPS group was milder than that in LPS group.Conclusion The miR-155 increased in lung tissue of endotoxemic mice.miR-155 inhibitor may suppress JAK/STAT1 signaling pathway and protect the lung tissue.

Objective To investigate the effects of lipopolysaccharide (LPS) on the expressions of sodium taurocholate co-transporting polypeptide (Ntcp) and bile salt export pump (Bsep),as well as the liver function markers in the serum including total bilirubin (TBIL),total bile acids (TBA),alanine aminotransferase (ALT),aspartate aminotransferase (AST) in mice.Methods One hundred and twenty-eight C57BL/6 mice were intra-peritoneally injected with different doses of 5,10,20 or 40 mg/kg LPS (n =24),respectively.No treatment or treated with 0.9％ NaC1 in mice as controls.Serum TBIL,TBA,ALT and AST levels were measured at 24 h,48 h and 72 h after LPS injection in each group.The mRNA expressions of Ntcp and Bsep were detected by reverse transcription quantitative polymerase chain reaction (RT-qPCR).The liver histological sections were stained with haematoxylin and eosin (H&E).Results The Ntcp and Bsep mRNA expressions in mice liver were significantly lower in livers of LPS-treated mice within 24-72 h compared with control group,and the lowest level was reached at 24 h in a dose-dependent manner.And the relative expressions of Ntcp mRNA and Bsep mRNA were (0.64 ± 0.02),(0.53 ± 0.14),(0.25±0.09),(0.15±0.07)and (0.74±0.12),(0.58±0.11),(0.41±0.09),(0.27 ± ± 0.11) in livers of mice injected with LPS in the different doses of 5,10,20,40 mg/kg,respectively.In addition,serum levels of TBIL,TBA,ALT,and AST were significantly increased in mice of LPS-treated group compared with control group,particularly within 24 h after LPS treatment.Serum levels of TBIL,TBA,ALT,and AST were significantly decreased in mice of 40 mg/kg LPS-treated 72 h group compared with 24 h group presenting them with (1.29 ± 0.25) μ mol/L vs.(1.71 ± 0.22) μ moL/L,(6.97 ± 0.98) μmol/Lvs.(8.96±1.01) μmol/L,(120.17±21.08) U/L vs.(179.22±16.57) U/L,(360.34 ±35.31) U/L vs.(510.97 ± 34.70) U/L,respectively.Furthermore,histological changes in liver depend on dose and the course of LPS treatment.Cytoplasm rarefaction and inflammatory cells infiltration were detected at 24 h after treatment with 5 or 10 mg/kg LPS.Acidophilic and vacuolar degeneration,neutrophils infiltration in the hepatic sinusoid and portal area,the proliferation of bile ductulus were observed at 48 h,72 h after treatment with 5 or 10 mg/kg LPS.In the 20 or 40 mg/kg LPS treatment groups,focal necrosis,infiltration with inflammatory cells,proliferation of bile ductulus and expansion of duct were observed at 24 h,48 h and 72 h after LPS treatment.Conclusions LPS decreases the mRNA expressions of Ntcp and Bsep in a dose dependent manner in mice,contributing to mechanism of liver injury induced by endotoxin.

OBJECTIVE To study the pharmacokinetics and tissue distribution of deferiprone (DFP) in rats. METHODS Plasma and tissues were collected after male Wistar rats were ig given DFP 35, 70 and 140 mg·kg~(-1) at different time points. The DFP in plasma and tissues was determined by high performance liquid chromatography. The compartment model was fitted and pharmacokinetic parameters were calculated by DAS 2.0. RESULTS The results showed that the pharmacokinetic process of DFP in rats was two-compartment model after rats were ig given DFP 35, 70 and 140 mg·kg~(-1). The t_(1/2α) were 23.3, 22.2 and 20.9 min, respectively. The t_(1/2β) were 53.3, 50.9 and 46.3 min, respectively. The Cl were 0.017, 0.021 and 0.016 L·min~(-1)·kg~(-1), respectively. The content of DFP was high in stomach and liver tissues after rats were ig given DFP 70 mg·kg~(-1), and it was lower in the other tissues. The content of DFP in liver tissues was (359.22±31.16)μg·g~(-1), at 60 min after rats were ig given DFP 70 mg·kg~(-1). CONCLUSION The absorption and elimination of DFP are quick and the tissue distribution of DFP is wide in vivo.

Objective To approach the changes of serum insulin and peptide C and determine their relationship with inflammatory reaction in patients with severe multiple trauma. Methods The serum insulin, peptide C, tumor necrosis factor (TNF)-α, interleukin (IL)-10, C reactive protein (CRP) were detected in 30 patients with severe multiple trauma at days 1,3 and 7 after trauma to analyze the dynamic changes of serum insulin and peptide C and their correlations with Acute Physiology and Chronic Health Evaluation Ⅲ ( APACHE Ⅲ), cytokines and CRP. The changes of cytokines and CRP were also compared with those of serum insulin and peptide C in patients with different outcomes. The changes of serum insulin and peptide C of 35 healthy subjects were detected and used as control. Re-sults The serum insulin and peptide C levels of patients were higher than those in control group at each time point after trauma, with remarkably positive correlation with APACHE Ⅲ. Whether the serum glu-cose and age were controlled or not,serum insulin and peptide C were positively correlated with IL-10 at each time point and with TNF-α and CRP at days 3 and 7. The levels of serum insulin, peptide C and IL-10 were decreased with time in both groups with different outcomes. Meanwhile, the levels of TNF-α and CRP were decreased in the survival groups but increased in the death groups. The levels of above indices in death group were significantly higher than survival groups at the same time point. Conclusions The increasing of serum insulin and peptide C is correlated with inflammatory reaction after severe multiple trauma. The dynamic changes of both indices can either reflect injury severity or be used as an effective index in dynamically monitoring anti-inflammatory degree of the organism.

Objective To evaluate the therapeutic effect of extra-fine choledochoscope in treating polypoid lesions of gallbladder by percutaneous trans-hepatic and trans-gallbladder puncture(PTGB). Methods Extra-fine choledochoscope(2. 7 mm diameter)was inserted into tract soon after it was made per-cutaneously trans-hepatic and dilated in one session,gallbladder polyps was removed with biopsy forceps or snare or basket,and PTCD drainage tube(10. 2 F diameter)was imbedded for external drainage until 10 days after. If the gallbladder puncture point fell on the bed and gallbladder polyps were not clearly visual-ized,or puncture points were on non-gallbladder bed of the body,drainage tube(10. 2 F diameter)was placed for external drainage. Results Forty-two patients were successfully punctured,and 40 patients were punctured accurately on the bed in,and the fresh endoscope tract of these patients was established in 45 mi-nutes on average. Of the 29 cases of simple bottom and body ventral polyps,complete clearance of gallbladder polyps was achieved in 27. Gallbladder polyps clearance rate was 93. 10%. Complications of minor hemobi-lia occurred in 9 cases,and infection of biliary tract occurred in 3 cases after operation. There was no recur-rence after a follow-up of 15 months on average. Conclusion Extra-fine choledochoscope by PTGB is a less invasive,more reliable and effective method to cure benign polypoid lesions of the gallbladder. The gallblad-der is preserved and for malignant polyps,it can help to achieve early diagnosis and provide reliable evidence for further treatment.