?AlM: To observe the changes of corneal topography and astigmatism et al with various duration of closing eyes and sleep;and study the impact of closing eye and sleep causing physiological hypoxia on corneal topography.
? METHODS: Sixteen volunteers were selected ( 32 eyes), 22-33 (26. 19 ± 3. 95) years old, without refractive errors and other eye diseases, as well as never wearing corneal contact lens, including 10 male eyes and 22 female eyes. The main parameters received corneal simulation K value, corneal astigmatism, corneal irregular measure ( ClM ) and the shape factor ( SF ) by Zeiss corneal topographer. They were measured before and after closed eyes 10, 20, 30, 60, 120min; before sleep and after over 6h sleep, they were detected immediately as soon as they opened eyes after 10, 20, 60, 120min.
? RESULTS: During closing eyes, there were no statistical significance on the changes of corneal topography, corneal astigmatism, and SF. After opening eyes and over 6h sleep, there were no statistical significance on the changes of corneal topography, corneal astigmatism, ClM, and SF.
?CONCLUSlON:Closing eyes and sleep don’t injure the cornea substantially, so corneal topography and corneal astigmatism don’t mainly change.

Objective To develop a method for the determination of 13 kinds of organic phosphorus pesticides in the water by gas chromatography-mass spectrometry with solid phase extraction(SPE).Methods The 13 organic phosphorus pesticide residues,including dichlorvos,mevinphos,phorate,diazinon,propetamphos,ddimethoate,methyl parathion,malathion,fenitrothion,parathion,phenthion,methidathion,ethion,were separated on DB-1701P elastic silica capillary column followed by SPE with carbon-amino group complicated column and analyzed by gas chromatography mass spectrometry.Methylene dichloride was elution solvent,injection inlet temperature was 280 ℃ and column flow rate was 1.2 ml/min.Results The leaner range and limit of detection was 0.05-2.5 mg/L,0.49 ?g/L for dichlorvos;0.10-2.5 mg/L,1.4 ?g/L for mevinphos;0.05-2.5 mg/L,0.96 ?g/L for phorate;0.05-2.5 mg/L,0.73 ?g/L for diazinon;0.05-2.5 mg/L,0.60 ?g/L for propetamphos;0.05-2.5 mg/L,1.8 ?g/L for ddimethoate;0.10-2.5 mg/L,2.2 ?g/L for methyl parathion;0.05-2.5 mg/L,0.34 ?g/L for malathion;0.05-2.5 mg/L,1.1 ?g/L for fenitrothion;0.10-2.5 mg/L,0.58 ?g/L for parathion;0.05-2.5 mg/L,1.2 ?g/L for phenthion;0.05-2.5 mg/L,0.77 ?g/L for methidathion;0.50-2.5 mg/L,0.26 ?g/L for ethion.For all thirteen organic phosphorus pesticides,the correlation coefficient was above 0.99.The average recovery rates were 94.40%-100.80% and RSDs were found in the range of 4.17%-14.73%.Conclusion The method is simple,rapid,sensitive,accurate and applicable to the simultaneous determination of 13 kinds of organic phosphorus pesticide residues in water.

12E7 Antigen ; Adult ; Antigens, CD ; metabolism ; Cell Adhesion Molecules ; metabolism ; Chondrosarcoma, Mesenchymal ; metabolism ; pathology ; surgery ; Diagnosis, Differential ; Hemangiopericytoma ; pathology ; Humans ; Lymphoma ; pathology ; Male ; Nasal Cavity ; Neuroectodermal Tumors, Primitive ; pathology ; Nose Neoplasms ; metabolism ; pathology ; surgery ; Vimentin ; metabolism ; Young Adult

Transforming growth factor-?(TGF-?) is a kind of multifunctional cytokine that regulates cell growth,differentiation,cellular senescence,apoptosis,wound healing and embryo development.As a tumor suppressor,deregulated or aberrant TGF-? signaling has been strongly implicated in human solid tumors,as well as in normal and malignant hematopoiesis.TGF? exerts an inhibitory role during the whole procedure of hematopoiesis.As a cell cycle inhibitor,it maintains cells in a quiescent state and can downregulate expression of hematopoiesis activators and oncoproteins.In malignant hematopoiesis,altered expression of coactivators or corepressors involve in TGF-?-induced transcriptional responses and loss/disruption of TGF-? target gene expression.Then malignant cells grow and differentiate abnormally.In acute promyelocytic leukemia,PML-RAR? may inhibit TGF-? signaling through inhibition of cPML and nPML.Degradation of PML-RAR? by ATRA restores this signaling pathway.

Biopsy ; Guideline Adherence ; Humans ; Immunohistochemistry ; Lymphoma ; classification ; diagnosis ; pathology ; Practice Guidelines as Topic ; World Health Organization

Objective To study the effects of propofol used alone and in combined with opioids in gastroscopy,in order to select the more suitable anesthesia protocol.Methods A total of 285 pa-tients undergoing gastroscopy were selected in April ,201 5 in our hospital,including 105 males,180 females,ranging from 18 to 65 years old,weighing 40-90 kg,falling the category of ASA Ⅰ or Ⅱ. According to random number table,subjects were divided into four groups:dezocine group(group D, n =76),fentanyl group (group F,n =87),oxycodone group (group O,n = 71 )and control group (group C,n =5 1).Each group was implemented the corresponding anesthesia.SBP,DBP,HR,SpO 2 in baseline(T0 ),1(T1 ),3(T2 ),5(T3 )min after entering gastroscope were recorded.Choking cough, body movement,extra propofol,awakening time and inspecting time were observed.Results Among four groups,there was no statistical significance in age,gender,weight,blood pressure,heart rate and oxygen saturation and other general information.There were more cases given extra propofol in group C than in the other three groups (P <0.01 ).While for the experimental groups,there were more cases needing extra propofol in group O than in group D and group F (P < 0.01 ).The incidences of body movement and choking cough in group C were higher than those in the other three groups (P <0.01 ).Compared with the group C,dosage of propofol ,awakening time in the three groups,especially in group D,were much lower (P < 0.01 ).Conclusion Propofol in combination with opioids for sedation during painless gastroscopy can alleviate adverse reaction caused by propofol used alone.The more suitable anesthesia protocol is propofol with dezocine.

Objective To compare the effects of ephedrine and phenylephrine on hemodynamics in the patients undergoing surgery in prone position under general anesthesia.Methods Sixty American Society of Anesthesiologists physical status Ⅰ or Ⅱ patients, aged 20-60 yr, with body mass index of 18.5-2:5.0 kg/m2, scheduled for elective posterior lumbar interbody fusion under general anesthesia, were randomized to ephedrine group (group E, n =30) or phenylephrine group (group P, n =30).When hypotension [decrease in systolic blood pressure (SBP) ＞20％ of the baseline value, T0] occurred in supine position, SBP, diastolic blood pressure (DBP), mean arterial pressure (MAP), heart rate (HR), cardiac output (CO), cardiac index (CI) and central venous pressure (CVP) were recorded, and ephedrine 0.1 mg/kg (group E) or phenylephrine 1 μg/kg (group P) was injected via the central veins.The parameters mentioned above were recorded within 10 min after administration (T1-T10).Results Both ephedrine and phenylephrine could maintain the parameters of hemodynamics at the normal level.Compared with the baseline values at T0 , SBP, DBP, MAP and HR at T1-T10 and CO and CI at T2-T10 were significantly increased, and no significant change was found in CVP at each time point after administration in group E, and SBP and MAP at T1-T6, DBP at T1-T5, CVP at T2 and T3, and CO and CI at T1-T3 were significantly increased, and HR was decreased at T2 and T3 in group P.Compared with group P, SBP was significantly decreased at T1, and increased at T2-T10, DBP and MAP were decreased at T1, and increased at T3-T10, HR was increased at T1-T10, CO and CI were increased at T2-T10, and CVP was decreased at T1-T3 in group E.Conclusion Compared with phenylephrine, although ephedrine provides no significant effect on hemodynamics clinically, it can increase cardiac output to some extent in the patients undergoing surgery in prone position under general anesthesia.

Objective To observe the serum levels of homocysteine (Hcy) and hypersensitivity C-reactive protein(hs-CRP) in elderly patients with cerebral infarction and to investigate their relationship and clinical significance by National Institutes of Health Stroke Scale (NIHSS).Methods The serum levels of Hcy and hs-CRP were by enzymatic cycling method and scattering turbidimetry in the elderly patients ( 116 cases with cerebral infarction and 100 cases of healthy control).Those 116 cases with cerebral infarction were divided into three groups by the degree of NIHSS.The three groups were compared with each other.Results The levels of serum Hcy and hs-CRP in elderly patients with cerebral infarction were significantly higher than that of healthy control group ( t =6.97,P ＜0.01 ; t =14.96,P ＜0.01 ).There has significant difference among those three groups with cerebral infarction by comparing with each other( F =23.49,P ＜0.05; F =28.19,P ＜0.05).A positive correlation was found between Hcy and degree of NIHSS( r=0.54,P ＜0.05),and between hs-CRPand degree of NIHSS( r =0.58,P ＜0.05).Conclusions Serum levels of Hcy and hs-CRP are correlated with the occurrence of cerebral infarction and its severity.There has positive clinical significance to evaluate the effect of cerebral infarction by measuring the serum levels of Hcy and hs-CRP dynamic.

To simply and rapid authenticate Lonicera japanica. Rapid allele-specific PCR primer was designed base on trnL-trnF 625 G/T Single nucleotide polymorphism and the PCR reaction systems including annealing temperature was optimized; optimized results were performed to authenticate L. japanica and its 9 adulterants. When 100 x SYBR Green I was added in the PCR product of 87 degrees C initial denatured 1 min; 87 degrees C denatured 5 s, 68 degrees C annealing 5 s, 30 cycle; L. japanica visualize strong green fluorescence under 365 nm UV lamp whereas adulterants without. The results indicate rapid allele-specific PCR could authenticate L. japanica and its adulterants rapidly and simply.
Alleles ; DNA Primers ; genetics ; Drug Contamination ; prevention & control ; Lonicera ; classification ; genetics ; Polymerase Chain Reaction ; methods ; Quality Control

Objective To observe the interactions between a anti-interleukin-8 monoclonal antibody (anti-IL-8 mAb) carried targeted ultrasound contrast agents and the injured vascular endothelial cells,as well as to explore the role of IL-8 in the formation of atherosclerotic plaques and a new assessing method of vascular endothelial functions.Methods The targeted ultrasound contrast agent was prepared by using a erosslinking agent to couple a anti-IL-8 mAb with SonoVue microbubbles.The interactions between SonoVue microbubbles/the targeted microbubbles and normal/injured endothelial cells were observed under an inverted microscope,respectively.The numbers of endothelial cells and adhered microbubbles were counted under high power magnification.The ratio of microbubbles to endothelial cells was calculated for the quantitative analysis of the interactions.Results In the control group,only a slight amount of original SonoVue microbubbles were bound to normal/injured endothelial cells.In contrast,it was visible under the microscope that the anti-IL-8 mAb carried SonoVue could be bound to endothelial cells,and the number of microbubbles bound to the surface of injured endothelial cells was significantly higher than that bound to the normal endothelial cells.Conclusions The anti-IL-8 mAb carried targeted ultrasound contrast agent could be readily bound to the surface of the injured cells specifically,and thus suggesting a new direction for ultrasonic detection of vascular endothelial injury and the ultrasonic assessment of vascular endothelial functions.