Objective To analyze the incidence of stress hyperglycemia and its influential factors in patients with acute myocardial infarction and cerebral infarction. Methods The case data of 1630 consecutive patients with incipient myocardial infarction without cerebrovascular disease admitted in the department of cardiology and 1338 patients with atherosclerotic acute cerebral infarction without cardiovascular disease admitted in the department of neurology,Xuanwu Hospital,Capital Medical University from January 2009 to December 2012 were analyzed retrospectively. A total of 2048 patients without diabetes mellitus were selected from them,among them 1165 patients were in an acute myocardial infarction group and 883 were in a cerebral infarction group. The fasting blood glucose >7. 8 mmol/L in the next morning after admission was defined as hyperglycemia. Single factor and multifactor logistic regression analyses were used to compare the incidence of stress hyperglycemia and its influential factors of both groups. Results ( 1 ) Of the 1165 patients with myocardial infarction,the incidence of stress hyperglycemia was 17. 2% (n=201);of the 883 patients with cerebral infarction,the incidence of stress hyperglycemia was 5.4% (n=48). There was significant difference between the 2 group (χ2= 65.677;P < 0. 01). (2) Comparing the general information of the patients with stress hyperglycemia (n=249) and those without stress hyperglycemia ( n=1799) of the cardio-cerebrovascular diseases showed that there were significant differences in hyperlipidemia, drinking history, family history of cardio-cerebrovascular diseases, age, heart rate, total cholesterol, low density lipoprotein cholesterol,leukocyte count,blood urea nitrogen,and triacylglycerols between the 2 groups (P<0. 05). (3) Multivariate Logistic analysis showed that heart rate ( OR,1. 013,95%CI 1.002-1.024),leukocyte count (OR,1.109,95%CI 1.508-1.163),and triacylglycerols(OR,1.174, 95%CI 1. 042-1. 322) were the independent risk factors for stress hyperglycemia in myocardial infarction. (4) Systolic blood pressure (OR,1. 019,95% CI 1. 006-1.033) and leukocyte count (OR,1. 132,95%CI 1. 009-1. 268) were the independent risk factors for stress hyperg lycemia in cerebral infarction. Conclusion The incidence of stress hyperglycemia in patients with myocardial infarction is higher than that in patients with cerebral infarction,and the increased leukocyte count is a common independent risk factor for both.

Objective Preparing platelet rich gel through two-times centrifugal technique and co-culturing chondrocytes with PRG, then observing the proliferation and gene expression of chondrocytes, in order to provide a favorable way to prepare tissue engineering cartilage. Methods Centrifugating venous blood of rabbit through two-times centrifugal technique to obtain platelet rich plasma( PRP) ,then detecting the concentration of various growth factor in PRP. Admixing PRP with chondrocytes of rabbit and activating them with activator. After co-culti-vation,the proliferation of chondrocytes through MTT method and expression of ACAN,CollagenⅡand SOX-9 through realtime-PCR were ob-served,and compared with common cultured chondrocytes. Results The concentrations of PDGF-AB,TGF-β1,IGF-1 and VEGF in PRG were significantly higher than those in blood(P<0. 05). After co-cultivation, the proliferation rate of chondrocytes and the expression of ACAN,Collagen Ⅱ and SOX-9 were significantly higher than that of common cultured chondrocytes(P<0. 05). Conclusion Co-culturing chondrocytes with PRG is able to promote the proliferation and gene expression of chondrocytes. We considered that it is a excellent method to construct tissue engineering cartilage.

OBJECTIVETo study the protective effect of Ligustrazine Injection (LI) against cisplatin-induced ototoxicity and to explore its mechanism.

METHODSThirty healthy adult guinea pigs were randomly divided into three groups, 10 in each group, i.e., the normal control group, the cisplatin group, and the LI group. Guinea pigs in the normal control group were intraperitoneally injected with normal saline at 3 mL/kg for 7 consecutive days. Those in the cisplatin group were intraperitoneally injected with cisplatin at 3 mg/kg for 7 consecutive days. Those in the LI group were intraperitoneally injected with LI at 140 mg/kg for 7 days, but cisplatin (3 mg/kg) was intraperitoneally injected from the opposite side starting from the 4th day. Brainstem auditory evoked potential (BAEP) was performed in all animals before and after injection. All animals were sacrificed after the final testing under anesthesia and their cochleas collected. Half the cochleas of each group were collected for silver nitrate staining of cochlear basilar membrane stretched. The other half the cochleas of each group made into paraffin sections to observe the apoptosis of cochlea cells by TUNEL method and the expression levels of c-Jun detected by immunohistochemistry.

RESULTSThere was no statistical difference in the difference of BAEP threshold among the 3 groups before injection (P > 0.05), but the BAEP threshold increased in the cisplatin group and the LI group (P < 0.05). Besides, it was higher in the cisplatin group (P < 0.05). In the cisplatin group, most hair cells were missing, spiral ganglion cells obviously decreased, more TUNEL positive cells occurred, and the expression of c-Jun was stronger. But the aforesaid impairment in the LI group was obviously lessened (P < 0.05).

CONCLUSIONSLI showed certain antagonist effect on cisplatin-induced ototoxicity. Its mechanism might be associated with scavenging oxygen radicals of the cochlea tissue, improving the microcirculation, and fighting against apoptosis.

Animals ; Apoptosis ; drug effects ; Cisplatin ; toxicity ; Cochlea ; drug effects ; metabolism ; pathology ; Evoked Potentials, Auditory, Brain Stem ; Guinea Pigs ; Pyrazines ; pharmacology ; Reactive Oxygen Species ; metabolism

Objective To investigate the influence of CT-guided thermochemotherapy for pig's healthy pancreas and in turn to discuss the feasibility and efficacy on pancreatic tumors.Methods 9 healthy pigs were undergone CT-guided 80℃themochemotherapy with 18 G fine meedle injecting individually of 5-Fu 750mg(10 ml)into the pancreatic tail within 2min.CT,MRI and serum analyses test were carried out as the follow up study at 1h,3rd,7th and 14th day after the procedure;since the 3rd day,3 pigs were sacrificed right after every follow up and together with comparative study between diagnostic imagings and pathologic changes. Results The pig pancreatic tail necrotic lesions appeared to be most conspicuous at the 3rd day after thermochemotherapy and shrank gradually from 7th day to 14th day.Serum amylase level reached the highest at 3rd day after the treatment and lowered down at 7th day;and near approximately normal at 14th day.The outcomings of diagnostic imagings and macroscopic pathology were in accordance.Obvious pancreatitis occurred only in one pig and all others were nearly uneventful without serious complications of pancreatitis,intestinal adhesion and mortaligy.Conclusion CT-guided themochemotherapy can induce pancreatic,focal necrosis in healthy pig but with no serious complications;and these can further more establish the foundation for clinical practiee.(J Intervent Radiol,2007,16:844-846)

0.05 indicating no statistical difference.However,the noise measurements for the L and C groups were 30.05 and 27.80,respectively,with P

To cultivate applied capability of bioengineering students, five aspects should be done: optimization of experiment teaching system, reformation of experiment teaching mode, intensifying management of experiment teaching, increase of new experiments related tightly to scientific research, and training students’ self-study capability.

The cephalic dystocia education is an important part of obstetric education. According to current educational environment, the teaching method of multimedia combined with problem-based learning is conducive to resolving the dilemma of dystocia education. Dystocia education is designed to follow the cases as the main line and the problem as a guide, with the full integration of theory and practice. This teaching model has been recognized by the majority of foreign students, and it is worth recommending.

Objectives To investigate the relationship between atherosclerotic acute myocardial infarction (AMI),acute cerebral infarction (ACI)and homocysteine (Hcy). Methods Three hundred and twenty consecutive patients with primary acute myocardial infarction (AMI)(group A)were admitted to the Department of Cardiology,310 patients with primary large artery atherosclerotic cerebral infarction (group B)were admitted to the Department of Neurology,and 327 healthy individuals without cardiovascular and cerebrovascular diseases (group C)at the Department of Physical Examination,Xuanwu Hospital, Capital Medical University were enrolled retrospectively from March 2010 to October 2011. The age and sex were matched in the 3 groups. All the clinical data of subjects were colleted in detail and then were compared and analyzed. Results (1)The Hcy levels (μmol/L)of group A,B,and C were 15. 10 (12. 43, 19.47),15. 80 (13. 10,20. 83),and 13. 20 (11. 00,16. 50;median [interquartile range]),respectively. There were significant differences among the 3 groups (P<0. 05). The incidences of hyperhomocysteinemia (HHcy)were 92. 8%(n=297),97. 1%(n=301),and 84. 7%(n=277)(P<0. 05). (2)Multivariate Logistic regression analysis showed that the independent risk factors for ACI were HHcy (OR 8. 97,95% CI 3. 01-26. 71),hypertension,diabetes,hyperlipidemia and blood ureanitrogen;the independent risk factors for AMI were HHcy (OR 4. 36,95% CI 1. 70-11. 21),hypertension,diabetes,hyperlipidemia,and total blood cholesterol. Conclusion HHcy is an independent factor for ACI and AMI,which have closer relationship with ACI. ACI and AMI have some common risk factors,but their degrees of action are different.

Objective To explore the relationship between the degree of intraplaque neovascularization in carotid artery and the level of serum homocysteine.Methods Contrast-enhanced ultrasound were performed on 72 carotid atherosclerotic plaques of 48 patients.Contrast-enhancement within the plaque was categorizde as grade 1 to grade 3.The level of serum homocysteine were detected in the fasting state during the same period.Results According to the degree of contrast enhancement(grade 1 to 3),patients were divided into 3 groups.The more new vessels in plaque,the higher the level of homocysteine.The levels of homocysteine in three groups increased in turn.There were distinct differences among the three groups(F =18.49,P ＜0.05),and there was significant difference between every two groups (P ＜0.05).The linear correlation analysis showed that the level of homocysteine was positively correlated with the degree of carotid plaque enhancement (r =0.66,P ＜ 0.01).Conclusions Contrastenhanced ultrasonography could semi-quantitate new vessles in plaque.There was positive correlation between the degree of intraplaque neovascularization with the level of serum homocysteine.Combine with the level of serum homocysteine based on intraplaque neovascularization detected by contrast-enhanced ultrasound,the plaque stability could be more accurately evaluated.

Adolescent ; Adult ; Aged ; Allergens ; immunology ; Animals ; Child ; Female ; Humans ; Male ; Middle Aged ; Pyroglyphidae ; immunology ; Rhinitis, Allergic, Perennial ; therapy ; Treatment Outcome ; Vaccines ; immunology ; therapeutic use ; Young Adult