Objective:To study the effect of Vitamin E(VitE)and Sodium selenite on nonalcoholic fatty liver(NAFL).Methods:24 SD rats were randomly divided into 3 groups.The model group,treatment group and contrast group were respectively fed with high fat diet,interfering diet and normal diet.All animals were sacrificed at the end of the 5th week.The liver pathology was observed under the light microscope.Superoxide dismutase(SOD),malondialdehyde(MDA)were determined by biochemistry analysis.The expressions of nuclear factor kappa B(NF-kB)and tumor necrosis factor alpha(TNF-?)proteins in hepatocytes were examined by immunohistochemistry.Result:①compared with the contrast group,serum and liver SOD levels decreased in model group,while MDA were raised.The expressions of NF-kB and TNF-a proteins in liver tissue increased significantly in model group.②compared with the model group,serum and liver SOD level increased in treatment group,while MDA was lowered.The expression of NF-kB proteins in liver tissue was reduced in treatment group,and no significant changes occured in TNF-a protein expression.Conclusions:Combination of sufficient quantum of VitE and Sodium selenite can improve the SOD activities and reduce the expression of NF-kB proteins in liver tissue,which is possibly the important mechanism for VitE and Sodium selenite to prevent NAFL.

To determine the (tttta)n repeat polymorphisms at the promoter region of CYP11alpha gene, and study its linkage to hyperandrogenism of polycystic ovary syndrome (PCOS) in Chinese women, a case-control study was conducted in the Reproductive Medical Center of the Second Affiliated Hospital of Zhengzhou University (Zhengzhou, China). 96 PCOS patients and 78 healthy control women were included. CYP11alpha (tttta)n repeat-polymorphism genotyping analysis was performed by using polymerase chain reaction (PCR). Serum pituitary hormone and total testosterone levels were measured by ELISA. 4 different CYP11alpha (tttta)n allelles were identified, corresponding to 4-, 6-, 8-, and 9-repeat-unit alleles. The frequency and distribution of these alleles are 0.16, 0.33, 0.38, and 0.13 respectively in PCOS patients, as compared with 0.20, 0.34, 0.35, and 0.11 respectively in healthy controls. There were no significant differences between these two groups. Moreover, no correlation between the polymorphism of CYP11alpha gene and serum testosterone level of patients with PCOS and controls was observed. It is concluded that microsatellite polymorphism (tttta)n of gene CYP11alpha exists in Chinese women and the polymorphism of CYP11alpha gene does not play an important role in the pathogenesis of Chinese patients with PCOS, especially in patients with hyperandrogenism.
Cholesterol Side-Chain Cleavage Enzyme/*genetics ; Hyperandrogenism/complications ; Hyperandrogenism/*genetics ; Microsatellite Repeats ; Polycystic Ovary Syndrome/complications ; Polycystic Ovary Syndrome/*genetics ; *Polymorphism, Genetic/genetics

Objective:To do research on designing the new applied multifunctional integrated tubular pipeline in femoral artery and vein which combined with blood transfusion, fluid infusion, blood sampling, administration, measurement of central venous pressure. Methods: Pipeline is consisted of three parts, which are blood transfusion part and fluid infusion part, including three way switch and three way extended tube. The first way connected with the injection is for blood sampling and doses, the second way connected with the central venous is for measurement of central venous pressure, and the third way connected with the blood transfusion set and fluid infusion set is for blood transfusion and fluid infusion. In a standard thoraco-abdominal combined injury and revivification of 31 beagle, compare the time effect. Results: In the injury and revivification test, the average time cost in 532 times nursing care operation with the multifunctional integrated tubular pipeline is 19+5.1 seconds, the average time cost in 31 times individual nursing care operation of 5 procedure is 80+12 seconds. The multifunctional integrated tubular pipeline can quickly and effectively work on blood transfusion, fluid infusion, blood sampling, administration, measurement of central venous pressure. Conclusion:The multifunctional integrated tubular pipeline in femoral artery and vein saves time and human resources and reduces the infection rate in repeated venous puncture and works quickly and conveniently on animal experiment and acute fatal injury, so it is worthy a further clinical application.

Cryptogenic stroke refers to ischemic stroke that can not be defined by routine examination at present. Studies have show n that patent foramen ovale may be a common cause of cryptogenic stroke, and its possible mechanism is the paradoxical embolism. With the development of imaging technology , more and more studies have show n that patent foramen ovale is closely associated w ith cryptogenic stroke. This article review s cryptogenic stroke in patients w ith patent foramen ovale.

Objective Comparative study of the disinfection expense , turnover rate and the effect on health of ortho-phthalaldehyde and glutaraldehyde used for disinfection of bronchofiberscope , to provide the basis of the promoted application of domestic ortho -phthalaldehyde .Methods Based in turnover time of each bronchofiber-scope, the maxminal disinfection expense in month , the maxminal number of bronchofiberscope in month and the maxminal net value were compared with medical revenue in month .Two different disinfections are calculated .Ques-tionnaires about the effects were sent to twenty workers from the supply room involved in using two different disinfec -tion liquid, and the results were analyzed .Results The disinfection expenses of ortho -phthalaldehyde were higher than that of glutaraldehyde , but bronchofiberscope turnover rate increased by 50%, while medical net revenue in-creased by 40%.According to the questionnaires , the respiratory and conjunctival irritation of the workers were mi-nor, and the symptom of any skin irritation did not appear .Conclusion Although the expense increased , ortho-phthalaldehyde obviously improved the bronchofiberscope turnover rate and medical net revenue ,reduced the staff oc-cupational exposure and equipment residual effects on patients .Thus, ortho-phthalaldehyde is an efficient disinfect-ant that is worthy of being promoted in clinical practice .

BACKGROUND: Traumatic brain injury generates a cascade of arachidonic acid metabolic events that mainly presented by the increment of prostaglandin and oxygen free radicals. Indomethacin can potently inhibit the activity of cyclooxygenase, decrease the synthesis of prostaglandins, and may decrease the production of oxygen free radical, and thus may attenuate the pathological changes of brain injury.OBJECTIVE: To observe the changes of prostaglandin in early brain injury and after indomethacin intervention, so as to explore the pharmacological mechanism of indomethacin.DESIGN: A randomized and controlled trial based on experimental animals.SETTING: Department of neurosurgery and department of cerebral surgery in a university hospital.MATERIALS: This study was carried out at the Laboratory of Neurosurgery Department, Medical College of Southeast University between March and September 2000. Thirty-six hybrid cats were randomly divided into normal control group, brain injury group and indometbacin intervention group, with 12 cats in each group.INTERVENTIONS: Brain injury was simulated according to previously reported grading mechanical traumatic animal model establishment; cats with medium brain injury were enrolled in this study. The ultimate concentrations of prostacyclin (PGI2) and thromboxane A (TXA2) to 6-keto-prostaglandin F 1 alpha(6-keto-PGF1α) and thromboxane B2(TXB2) in brain vein blood, as well as total brain superoxide dismutase(SOD) and cerebral water content were measured 6 hours after trauma.MAIN OUTCOME MEASURES: 6-keto-PGF1α, TXB2, SOD, and cerebral water content.RESULTS: Both 6-keto-PGF1α and TXB2 in brain vein blood remarkably increased in early brain injury[from(0.057±0.010) g/L to (0.264±0. 126) g/L, from(0. 060 ±0. 012) g/L to(0. 134 ±0. 048) g/L respectively], with the increment of the former higher than the latter, the ratio of TXB2/6-keto-PGF1α decreased from 1. 052 ±0. 145 to 0. 545 ±0. 184, and cerebral water content increased from(77.39 ± 0. 36)% to (78.06±0.41)% ; meanwhile, total brain SOD significantly decreased from (94. 869 ± 5. 418) μkat/g to(54. 368 ± 3. 417) μ kat/g( P ＜ 0.01) . In contrast to brain injury group, the concentrations of 6-keto-PGF1α and TXB2 in indomethacin intervention group significantly decreased, which were similar to those of control group, but the total SOD significantly increased from (54. 368 ±3. 417) pkat/g to (81. 433 ±7. 268) μkat/g (P ＜0. 01), and water content lightly decreased without statistical significance( P ＞ 0. 1 ).CONCLUSION: PGI2 and TXA2 increase in early brain injury in experimental cat model, accompanied by free radical synthesis, resulting in the exacerbation of brain injury. Indomethacin may be helpful to relieve posttraumatic secondary brain injury by regulating the imbalance of PGT2 / TXA2 and decreasing the production of free radical.

Objective To establish a specific,stable and reliable real-time fluorescence quantitative PCR for detecting plasma mi-croRNAs(miRNAs).Methods The plasma samples from 10 healthy individuals were collected,and miRNAs was extracted using mirVanaTM PARIS kit.Exogenous cel-miR-39 and cel-miR-238 and endogenous plasma miRNAs were reversely translated by spe-cific stem-loop primers and quantified by real time fluorescence quantitative PCR.Results cel-miR-39,cel-miR-238 and miR-342-3p were amplified and quantified specifically in RNA preparations isolated from plasma samples of healthy individuals.The amplifica-tion products of cel-miR-39,cel-miR-238 and miR-342-3p showed a single melting peak at 81.44,81.62 and 82.71 ℃,respectively, without primer dimer peak or non-specific peak in all 10 cases of healthy individual plasma samples.The standard deviation(SD)of intra-assay and extra-assay of miR-342-3p was 0.13-0.20,and the coefficient of variation(CV)was 0.42%-0.66%,which sug-gesting that this detection method has a good repeatability.The levels of miR-342-3p were detected in a same plasma sample,each experiment was repeated for 5 times,and normalized by cel-miR-39 and cel-miR-238.The SD and CV of ΔCt was 0.22,1.68%,re-spectively,which indicating that cel-miR-39 and cel-miR-238 could be taken as the stable exogenous reference for the plasma miR-NAs detection by real-time fluorescence quantitative PCR.Conclusion Real-time fluorescence quantitative PCR could serve as a good platform for plasma microRNA research.

Objective To study the clinical features and prognostic factors of children with acute idiopathic myelitis.Methods This study retrospectively collected and summarized 75 patients' clinical data who were diagnosed with acute idiopathic myelitis for the first time in Children's Hospital of Chongqing Medical University from Jan.2003 to Dec.2012.The relationship between clinical features and prognosis was analyzed by using SPSS 19.0 software.Results In this study,37 boys and 38 girls were inclued.The distribution of ages was bimodal.The incidence of the disease seemed to have two peaks.One was broader ranging between age 1 and age 4 and the second was between age 9 and age 13.The main symptoms of acute idiopathic myelitis were weakness,sensory loss and autonomic dysfunction.Among the 75 cases,all patients had different degrees of paralysis,59.0％ (44 cases) of which had sensory abnormity and 80.0％ (60 cases) had autonomic dysfunction.In addition,root pain (50.7 ％,38/75 cases),bulbar paralysis (9.3 ％,7/75 cases) and fever(66.7％,50/75 cases) also appeared in the process.Seventy cases had spinal magnetic resonance imaging(MRI) exams,in which 61 showed abnormal signal and T2-weighted hyperintensities could be found.Forty children were followed up successfully and 32 of which had a good outcome.Factors associated with poor outcome included spinal shock(P =0.001),the duration of spinal shock beyond 2 weeks (P =0.015),low score of maximal neurologic defect (9.25 ± 0.89 vs 14.03 ± 2.87,P =0.000),plateau period ≥ 12 days (P =0.004),the time to maximal defect ≤ 24 hours(P=0.029),fever in initial stage(P =0.029),and being female(P =0.021).Conclusions Acute idiopathic myelitis was mainly manifested by weakness.Autonomic dysfunction happened more commonly than sensory abnormity.Some patients suffered bulbar paralysis during the couse of the disease.Spinal MRI signal usually changed on T2-weight sequences.Meanwhile,identifying the factors associated with poor outcome as early as possible is beneficial to preliminary evaluation and active treatment.

P2X7 receptors,belonging to purinergic P2 receptor family,are ATP-gated cation channels,which can choose the bivalent cations freely.P2X7 receptors join in cell signal conduction and the excretion of the cytokines and other physical functions.In recent years,researchers have discovered P2X7 receptors mediate the cells to live and grow by increasing oxidation and phosphorylation and intracellular ATP reserve.In breast cancer,the P2X7 receptors express abnormally,and can activate the MAPK lied in cytoplasm.The phosphorylated MAPK enter the nucleus and activates a series of protein kinases,and then affects the genesis and development of breast cancer.

Objective To explore influence factors of gerontal patients with lung squamous carcinoma after surgical therapy . Methods 210 gerontal patients with lung squamous carcinoma were accepted surgical therapy and adjuvant therapy ,and were fol-lowed up .The survival rates of 1 ,3 and 5 years after the surgery were evaluated by Kaplan-Meier ,and influence factors were ana-lyzed by Cox regression .Results The 1 ,3 and 5 years survival rates were 89 .0% ,68 .6% and 56 .2% ,respectively .The survival rates were significantly influenced by the smoking history ,the abnormal degree of mediastinal lymph node ,TNM stage ,the class number of lymph node dissection ,and the class number of mediastinal lymph node dissection(P<0 .05) .The smoking history(χ2 =16 .198 ,P=0 .000) ,the abnormal degree of mediastinal lymph node(χ2 =8 .873 ,P=0 .003) ,TNM stage(χ2 =18 .718 ,P=0 .000) , and the class number of mediastinal lymph node dissection (χ2 =4 .897 ,P=0 .027) were the influence factors of prognostic .Conclu-sion The accurate TNM staging and mediastinal lymph node with image examination could be more appropriate to operative indica-tions ,meanwhile ,if smoking was controlled ,the class number of mediastinal lymph node dissection was more .These could be bene-ficial to the survival .