1.Medical student humanities qual ityraise and social suitable stresspromot ion
Chinese Medical Ethics 1994;0(05):-
The medical student took future the medical worker.shoulders iS protecting the humanhealth the sacred mission,must havethe higher humanities quality,stronger society adaptiveness.Facingthe current medical student humanities qual ity present situation,thehigher medicine collegesand universities must transform the educationidea,reasonably establishes the humanities curriculumsystem,strengthens the teachers troop to COnstruct.the creation gOOd eall;puSctllture atmosphere and soon.strengthens the medical studenthumanities quality raise,sharpens the medical studentsocietyadaptiveness.
2.Advances on 14-3-3sigma protein in human malignant tumors
Journal of Medical Postgraduates 2003;0(04):-
14-3-3 protein is a highly conserved soluble acid family. Recent researches suggest that they play critical regulatory roles in cellular processes such as cellular mitosis,growth,differentiation,proliferation and death,etc.14-3-3sigma protein,one member of the family,expresses mainly in epithelial cells and has histological specificity.14-3-3sigma protein interacts with several signal transduction proteins,induces cell cycle arrest in G2 phase after DNA damage,and regulates cellular biological functions.Abnormal expression of 14-3-3? sigma protein is common during tumor transformation,which may be induced by p53 mutation or CpG island hypermethylation of promoter. It is closely related with the transformation,progress and prognosis of human malignant tumors.
3.Association of paraoxonase 1 and ApoE gene polymorphisms with plasma Ox-LDL level in type 2 diabetic patients
Xiaojun CHEN ; Jian ZENG ; Shizhong PAN
Chinese Journal of Endocrinology and Metabolism 2010;26(9):778-781
The polymorphisms of paraoxonase 1 ( PON 1 ) and ApoE gene in 192 patients with type 2diabetes mellitus (DM group) , 116 cases of atherosclerosis (AS) without DM (AS group), and 105 normal subjects (NC group ) were detected by means of PCR-restriction fragment length polymorphism. The serum concentration of Ox-LDL was determined by enzyme linked immunosorbent assay. The results showed that plasma Ox-LDL level in DM group was higher than those in AS and NC groups[(754.2±279.9 vs 526. 1±186.2 and 421.1 ± 163.2 )μg/L, P<0.01]. Ox-LDL level in the patients with QQ genotype of PON 1 was higher than those in QR and RR genotypes in type 2 DM[(846.6±147.5 vs 763.4±126. 7 and 7 1 3.2 ±132.4 ) μg/L, P<0. 0l],and Ox-LDL level in the patients with ε3/4+ ε4/4 genotype of ApoE was also higher than those in ε3/3 and ε2/2 + ε2/3 geneotypes in type 2 DM[( 824.3 ± 173.5 vs 741.6± 182. 5 and 718.3 ± 167.5 ) μg/L, P<0.05], but the difference was not found in atherosclerosis without DM. Multiple regression analysis showed that disease duration, PON1 and ApoE genotypes were the independent predictors of plasma Ox-LDL level in patients with type 2 DM.
4.To Compare the Content of the Volatile Oil from Curcuma Aromatica Salisb. of Different Growth Periods
Xiaojun PAN ; Bo ZHANG ; Guanyang LIN
Journal of Zhejiang Chinese Medical University 2006;0(02):-
[Objective] To study the effects of different growth periods on the contents of volatile oil and the curcumol in Curcuma aromatica Salisb. samples,which provided theoretical bases to control the quality of the crude drug of Curcuma aromatica Salisb.[Method]The contents of volatile oil in Curcuma aromatica Salisb. samples were determined by the method of Pharmacopeia,and HPLC method for determination of curcumol in different samples was established. [Result]The contents of volatile oil in different samples lied in the range of 0.820%~0.471%(g/g),and the contents of curcumol in different volatile oil samples were between 0.862%(g/g) and 1.380%(g/g). [Conclusion]Compared with the Curcuma aromatica Salisb. of a shorter growing period,the contents of longer growth period were higher.Different growing time had effects on the accumulating of volatile oil and the curcumol in Curcuma aromatica Salisb.
5.Research advances on dermal stratum corneum and its injury
Minhong PAN ; Xiaojun ZHOU ; Shaojun JIANG
Journal of Medical Postgraduates 2003;0(11):-
Stratum corneum,the outermost layer of the mammalian skin, has its unique structural,biophysical and biochemical characteristics.The form of stratum corneum is a continuous sheath of protein-enriched corneocytes embedded in an intercellular matrix enriched in nonpolar specialized lipids.It provides an impermeable barrier from exogenous noxious substances and prevents the body from transdermal water loss.Recent researches suggest that its morphological and functional abnormalities can be induced by various environmental effects such as ultraviolet radiation,mechanical friction,organic solvents,etc.However,the mechanism of the injury-repair process remains unclear.Several cytokines and ceramide may be involved in the regulation.
6.Changes of aquaporin-4 in the rats with traumatic brain injury following acute ethanol intoxication
Chonghui TANG ; Xinlong XU ; Xiaojun FU ; Xiaojie WEI ; Hongsong PAN
Chinese Journal of Emergency Medicine 2010;19(1):52-56
Objective This study was designed to determine the influence of acute ethanol intoxication (AEI) on brain edema and aquaporin-4(AQP-4) levels after traumatic brain injury(TBI) in rots. The underlying mechanism was also investigated. Method Severe traumatic brain injury models were made using the Feeny method; acute ethanol intoxication models were established by gavagy. One hundred and ninety-two male SD rats were randomly divided(random number) into four groups, namely the sham operation group(A ), the acute ethanol intoxication group( B ), the traumatic brain injury group(C) and the combination of acute ethanol intoxication with traumatic brain injury group(D). Each group was further divided into four sub-groups according to the time interval between injury and death of the rats. After brain tissue was fixed by affusing paraformaldehyde, the expression of AQP-4 was detected by immunohistochemistry. Water content was detected by dry-wet analysis, and AQP-4 mRNA and protein were detected by RT-PCR and western blotting respectively after the brain tissue was got by rapid decapitation. Data were analyzed by one-way ANOVA. Results The water content of brain tissue and expression level of AQP-4 were not significantly different between groups A and B( P > 0.05); however both were significantly increased in groups C and D relative to group A( P < 0.05). The water content of brain tissue in group D increased by mere than that in group C( P < 0.05), while the expression level of AQP-4 in group D was lower than that in group C(P<0.05). Conclusions Acute ethanol intoxication inhibited the expression of AQP-4,which induced a more severe cerebral edema after traumatic brain injury.
7.Imaging anatomy of the infraorbital ethmoid cells on multislice CT
Zhenyu PAN ; Xiaojun QIAN ; Hua GU ; Renyou ZHAI
Chinese Journal of Radiology 2008;42(6):623-627
Objective To study the anatomic characteristics of the infraorbital ethmoid cells on muhislice CT(MSCT)and explore the relationship between the infraobital ethmoid cells and mueosal swelling of sinuses.Methods Two hundred sixty patients(520 sides) of consecutive axial scans by GE HisDeed VCT and the multiplunar reformation(MPR),virtual endoscopy(VE)reconstruction images by GE AW 4.2 workstation were reviewed retrospectively.The following CT features were assessed:(1)the anatomic characteristics of the infraobital ethmoid ceils,including the frequency of identification,origin,classification.(2)presence of mucosal swelling of sinuses,(3)the maximal transversal diameter of the inflraobital ethmoid cells in ostium of maxillary sinus(perpendicular to the uncinate process),and the diameter of the ostium of maxillary sinus,(4)presence of infraobital ethmoid ceils inflammatory findings and a contact between the mucosal surface of the ostium of maxillary sinus.The results were analyzed by using Chi-square test and logistic regression analysis with the statistical software SPSS 11.5.Results (1) UniLateral infraobital ethmoid cells were f10und in 68 patients(26.1%),and bilateral infraobital ethmoid cells were found in 81 patients(31.2%).Infraobital ethmoid ceHs were found in 230 sides on left Bide (120 sides)and right side(110 sides).(2)Infraobital ethmoid cells originated from the anterior ethmoid cells in 124 sides(53.9%)and from posterior ethmoidal cells in 62 sides(27%),originated from both the anterior ethmoidal cells and the posterior ethmoidal cells in 44 sides(19.1%).(3)The classification of the infraobital ethmoid cells included three types.Infraobital ethmoid cells with different origination differed significantly in theirtypes(x2=193.433,P<0.01).Most ofthe infraobital ethmoid cells originated from tlle anterior ethmoidal cells were type Ⅰ(160 sides),while the type Ⅱ(48 sides)and Ⅲ(45 sides) frequently originated from the posterior ethmoidal ceHs(4)The mueosal swelling of sinuses,were found in 165 sides in presence of infraobtial ethmoid cells and 192 sides in absence of infraobtial ethmoid cells.The presence of infraobtial ethmoid cells had no effect on mucosal swelling(X2=1.824,P>0.05).The maximal transversal diameter of the infraobital ethmoid cells in ostium of maxillary sinus did not differ significantly between the cases with or without mucosal swelling of sinuses(t=0.273,P>0.05).and the diameter of the ostium of maxillary sinus were not significantly related with mucosal swelling of sinuse8 (Wald=2.534,P>0.05).Presence of infraobital ethmoid cells inflammatory findings (Wald=10.817. P<0.01,OR=4.125)and a contact between the mucosal surface of the ostium of maxillary sinus (Wald= 6.640,P<0.01,OR=3.728)were significantly related to mucosal swelling of 8inuses. Conclusions (1)MSCT scan could clearly demonstrate the detailed information of infraobital ethmoid ceIIs.(2)The presence of infraobtial ethmoid cells Was not a risk factor for chronics sinusitis. When we assess inflraobtial ethmoid cells as a possible etiologic factor in chronics sinusitis we should observe presence of infraobital ethmoid cells inflammatory findings and a contact between the mucosal surface of the ostium of maxillary sinud.
8.A study on the cerebral glucose metabolism in progressive supranuclear palsy
Aijun MA ; Xiaojun GUO ; Dacheng LI ; Benshu ZHANG ; Xudong PAN
Chinese Journal of Internal Medicine 2012;51(11):885-888
Objective To study the regional cerebral glucose utilization with 18 F-fluorodeoxyglucose (FDG) PET and to investigate the correlation between cerebral glucose metabolism and the clinical characteristic of progressive supranuclear palsy (PSP).Methods A total of 13 patients with PSP and 30 matched healthy controls were performed 18F-FDG PET imaging at rest state.Visual inspection and statistical parametric mapping (SPM) were used to investigate regional cerebral metabolic rate of glucose (rCMRglc).Results Based on the visual inspection,PET imaging in the PSP patients showed that the focal hypometabolic areas mainly included the bilateral frontal cortex,midbrain and subcortical structures.Compared to the controls,voxel-based analysis showed that the regional glucose metabolism decreased in bilateral superior,middle frontal gyrus,cingulate gyrus,midbrain and subcortical structures including basal ganglion and thalamus,which were consisted with the clinical characteristics,such as vertical gaze palsy,pseudobulbar palsy,postural instability,axial rigidity,dementia and so on.Conclusion 18 F-FDG PET imaging is helpful for the early diagnosis of PSP.
9.Ultrasonic study on effects of simvastatin on left ventricular mass in patients with essential hypertension
Pingyang ZHANG ; Youbin DENG ; Haoyi YANG ; Min PAN ; Xiaojun BI
Chinese Journal of Clinical Pharmacology and Therapeutics 2005;10(9):1001-1004
AIM: To evaluate the effect of simvastatin on the left ventricular mass in patients with essential hypertension (EH). METHODS: 50 patients with hypertension without severe complication were randomly divided into two treatment groups: combination treatment group and hydragogue group, and 25 normal subjects without any treatment were taken as the control. The 25 patients in combination treatment group were given simvastatin and hydragogue for 12 weeks while the other patients in hydragogue group were given hydragogue during the same time. The left ventricular mass was examined from ultrasonography in all patients before and after treatment. RESULTS: The left ventricular mass index (LVMI) was higher in the two treatment groups of patients (133.61±31.02, 118.04±39.62 g·m-2) than that in the control group (88.79±22.73 g·m-2) before treatment (P<0.01, 0.0001, respectively) while the blood pressure was higher. There was no significantly difference in age, serum concentrations of total cholesterol or triglyceride, sugar and blood pressure between the two treatment groups and the control group (P>0.05). There was no significant difference in all variables between the two treatment groups before treatment. After treatment, the LVMI was decreased (133.61±31.02 vs 91.07±16.01 g·m-2, P<0.01) in the combination treatment group while there was no significant change in LVMI in the hydragogue group compared with the control group. The blood pressure in the two treatment groups was decreased to the normal. Compared with hydragogue group, the change of LVMI was higher in the combination group though the serum concentrations of total cholesterol, triglyceride or sugar were not significantly different. No significant change in serum concentrations of total cholesterol, triglyceride or sugar was found during treatment in the two groups. The change of LVMI did not correlate with the change of blood pressure, serum concentrations of total cholesterol , triglyceride or sugar in the combination treatment group(P>0.05). CONCLUSION: Being independent of the changes of serum concentrations of total cholesterol, triglyceride or sugar and blood pressure, simvastatin can inhibit the increase of left ventricular mass in patients with essential hypertension.
10.Features of respiratory impedance between COPD and OSAHS patients
Feipeng CHEN ; Zhaoxian YU ; Xiaojun CHEN ; Qiaohong PAN
Clinical Medicine of China 2008;24(9):855-857
Objective To study the characteristics of respiratory impedance in patients with chronic obstructive pulmonary disease (COPD),obstructive sleep apnea hypopnea syndrome (OSAHS).Methods The respiratory impedance were measured by Impulse Oscillometry(IOS) technique and polysomnography(PSG) were done synchronously in 11 COPD patients,15 OSAHS patients,4 overlap syndrome patients(COPD+OSAHS) and 10 control group. Results Zrs、R5、Rc and RP in COPD group,OSAHS group and COPD+OSAHS group were higer than those in contml group.Zrs、R5、R5-20、Fres.Rc and Rp in COPD group and COPD+OSAHS group were significantly higerthan those in OSAHS group.R20 and Rc in OSAHS group were higher than those in COPD group and control group (P<0.05).Rc in OSAHS group was still significantly higher than that in COPD group (P<0.05). The level of sleep efficiency was positive correlated with FEVl/pre% of COPD(r=0.632),while the levels of rouse frequence (r=-0.672),time of SaO2 <90% (-0.868) and ODI (-0.846) were negative correlated with FEVl/pre% of COPD.Condusion For OSAHS patients, there is some dysfunction in peripheral airway tract;For COPD patients,ODI and time of SaO2<90% are good index for the severity of disease.