Cerebral small vessel disease (SVD) is an important subtype of cerebrovascular disease. It is also one of the major reasons for resulting in vascular cognitive impairment or dementia in the elderly. SVD is a small arteriovenous lesion in subcortex caused by a variety of causes, mainly causing subcortical lacunar infarction, white matter damage, microblecds and other pathological changes. There is evidence that vascular endothelial function and blood-brain barrier damage may result in small vessel structures and perivascular changes, which may be the initial factors.of causing SVD. Genetic susceptibility is also one of the risk factors that can not be ignored.

Objective To construct a set of evaluation index system for medical research project,to make the work justice and fairness,to manage the research work scientificly and standardized,to promote scientific research and hospital development closely,so as to better serve the society.Methods Based on the literature review,semi structure interview method and current medical research project evaluation index system and related management methods,a preliminary index system was formed.Using the Delphi method to carry out two rounds anonymous questionnaire consulting,the medical research project acceptance evaluation index system was finalized.Results The evaluation index system of medical research projects includes 5 first-level indexes and 21 second-level indexes.Ranking from high to low is based on the weight coefficient of the size.Conclusions Through the establishment of the index system of medical scientific research projects,the project acceptance management work has become scientifically planned,which guide scientific research project productive and improving the scientific management level and technological innovation ability.

Based on the background of knowledge economy,factors which have affected the social status of a person can be divided into five levels: physical fitness,technical ability,mental capacity,potential energy and recombination energy.This article analyzes the educational style of medical students by using five-level-ability model which judges a person from the economic angle.It aims at providing constructive opinions on innovation,enhancement and improvement of modern medical education.

Objective To investigate the application value of the XT-4000i blood cell analyzer in body fluid cell count.Methods 113 cases of body fluid specimen were collected in the hospitalized patients from September 2013 to February 2014.Then RBC and WBC counts in the collected specimens were detected whitin 1 h by XT-4000i blood cell analyzer and the manual detection method, the RBC count values were divided into 3 levels:L1 100~1 000 ×106/L,L2 1 001 ×106 ~100 000 ×106/L and L3 > 100 000 × 106/L;WBC count values were divided into 2 levels:L1 1~50×106/L and L2 >50×106/L.The correlation between the two kinds of test methods was analyzed.Results The results of RBC and WBC counts detected by the XT-4000i blood cell analyzer and the manual method had a higher correlation.The correlation coefficients were 0.931,0.996,0.865,0.942 and 0.988.Conclusion The XT-4000i blood cell analyzer can be applied in clinical fluids cell count.

Objective To investigate the protective effect of c-jun N-terminal kinase (JNK)inhibitor SP600125 against acute liver failure in mice.Methods Fifty-five male C57/BL6 mice were divided into control group (n =30) and SP600125 group (n =25).The animals were given an intraperitoneal injection of D-galactosamine (D-GalN,400 mg/kg body weight)/lipopolysaccharide (LPS,30 μg/kg body weight).The control group and SP600125 group were given 10％ dimethyl sulfoxide (15 mL/kg body weight) or SP600125 (75 mg/kg body weight) subcutaneously 12 h and 1 h before D-GalN/LPS administration,respectively.D GalN/LPS induced mouse JNK activation was detected by immunohistochemistry for phospho JNK (p-JNK).D-GalN/LPS induced mouse liver cell apoptosis was detected by immunohistochemistry for Caspase-3 and TdT-mediated-dUTP nick endlabeling (TUNEL).Serum alanine transaminase (ALT) level was tested to assess liver injury.Survival rate of mice within 24 h after D-GalN/LPS administration was observed.The comparison between groups was done by t test and survival rate was analyzed by Kaplan-Meier method.Results JNK activity in liver tissues,as indicated by observation of p-JNK positive cells by immunohistochemistry,was diminished 4 h after D-GalN/LPS administration in SP600125 group.Reduced Caspase-3 activity was observed 6 h after D-GalN/LPS administration in SP600125 group (as indicated in immunohistochemistry by Caspase-3 positive cells).Mice in SP600125 group showed significantly lower TUNEL-positive cell count than control group (43.0±24.5 vs 194.7±73.8; t=9.743,P=0.000).Serum ALT level 6 h after D-GalN/LPS administration was (24.0±54.7) U/L in SP600125 group,which was significantly lower than that in control group [(1234.4±478.4) U/L; t=4.734,P=0.0015].SP600125 also significantly improved the survival rate within 24 h after D-GalN/LPS administration (4/5 vs 1/10； x2=5.225,P=0.0223).Conclusions JNK inhibitor SP600125 exerts protective effects against D-GalN/LPS induced acute liver failure in mice by suppressing JNK activation and hepatocyte apoptosis.

Objective To investigate the changes of serum bilirubin level in elderly patients with acute cerebral infarction and its significance.Methods 164 hospitalized elderly patients,who suffered from acute cerebral infarction within 1 week after onset,were divided into 2 groups according to age:group A aged over 60 years(n=85) and group B aged 40-60 years(n=79),and 66 healthy subjects aged over 40 years were collected as controls(group C).Serum bilirubin levels in all subjects were determined.The ratio of pulse pressure over mean arterial pressure(PP/MAP) in group A and B was calculated.Nerve function scores in the three groups were detected before and after 2 weeks of treatment.Meanwhile,the data of risk factors including blood glucose,blood pressure,blood lipids,smoking and drinking in group A and B were collected.Results Compared with group C,serum total,direct,indirect bilirubin levels were increased in group A and B(both P＜0.01),and the change was smaller in group A than in group B(P＜0.05).The nerve function scores was lower in group A than in group B before and after treatment [(35.2±12.6) vs.(44.3±7.9),(40.7±9.1) vs.(51.3± 4.1),t=5.58,9.73,both P＜0.01],but PP/MAP and the numbers of risk factors were higher in group A than in group B [(0.46±0.06) vs.(0.38±0.06),93.01 vs.71.20,both P＜0.01].There were no significant correlations of serum total,direct and indirect bilirubin levels with nerve function scores in group A or B(all P＞0.05).Conclusions Serum bilirubin level is increased in patients with acute cerebral infarction,but the endogenous antioxidant capacity is decreased because of aging,multiple risk factors and more serious atherosclerosis in elderly patients,and the increment of bilirubin level is relatively smaller in acute cerebral ischemia,leading to the reduced protective effect against stress.Serum bilirubin level may influence the prognosis in patients with acute cerebral infarction.

To explore the protective effect of adenovirus mediated IGF-Ⅰgene(Ad-IGF-Ⅰ)transfer on non-obese diabetic(NOD)mice. The results showed that the incidence of diabetes and degree of insulitis were significantly reduced in mice receiving Ad-IGF- Ⅰ . Treatment with Ad-IGF- Ⅰ significantly decreased apoptosis rate,expression of Fas and caspase-3, and increased expression of Bcl-xl. This study indicates the potential of IGF- Ⅰ gene therapy in protecting NOD mice from insulitis and apoptosis.

Objective To observe the characteristics of electromyography of sphincter of Oddi (SO) in patients with cholelithiasis after common bile duct exploration,and investigate new methods for detecting the motility of SO.Methods The basal pressure of SO(SOBP)and electromyography of SO were detected in 33 patients with cholelithiasis who were reexamined at the Southwest Hospital from January to October,2010.All patients were divided into low SOBP group,normal SOBP group and high SOBP group.The amplitude,frequency and duration of SO spike burst(SOSB)of the three groups were compared.Results The numbers of patients in the low SOBP group,normal SOBP group and high SOBP group were 14,13 and 6,respectively.The mean SOBP of the low SOBP group,normal SOBP group and high SOBP group were(3.1±1.2),(18.5±7.6),(39.8±4.8)mm Hg (1 mm Hg=0.133 kPa).The amplitude,frequency and duration of SOSB were(41±27)μV,(5.8±1.6) times/minutes and(2.7±0.6)s in the low SOBP group,and(150±71)μV,(6.9±1.4)times/minutes and (3.4±0.7)s in the normal SOBP group,and(301±109)μV,(7.8±1.2)times/minutes and(4.2±0.7)s in the high SOBP group,respectively,with significant difference among the three groups(F=50.751,4.293,13.159,P<0.05).Conclusion The results of electromyography of SO could reflect the function of SO,and it is possible to be a prospective method in the clinical research of SO.

Two-dimensional electrophoresis(2-DE) is an important technique in proteomics research.The 2-DE system for proteome of Monascus ruber was established by comparing and analyzing the infection caused by different kinds of mediums,lysis buffer and the condition of rehydration.By cultivating the Monascus ruber with YES for 6 days,extracting total protein by TCA-acetone,lysis buffer with 8 mol/L urea,2 mol/L thiourea,4 % CHAPS,1 % DTT and 2 % Bio-lyte,an ideal 2-DE map with higher resolution and better legibility was obtained,which laid a foundation for the further studies on proteome of Monascus ruber.

OBJECTIVE: To study the effectiveness of repairing nearly circumferential defect with the submental flaps after resection of laryngeal function unpreserved hypopharyngeal cancer. METHOD: All the cases were treated with the submental flaps after resection of hypopharyngeal cancer with laryngeal function unpreserved. RESULT: All 13 flaps were alive. Hypopharyngeal fistula occurred in 2 cases. All patients had normal swallowing function. The patients were followed up 6-42 months. Of 13 cases,3 had recurrence at neck Lymph node, but no local hypopharyngeal recurrence was found. Seven cases were followed up more than 3 years, and only 3 of them survived. CONCLUSION Submental flap is an ideal tissue flap submental flap in repairing of approaching circumferential defects after hypopharyngeal cancer ablation with laryngeal function unpreserved for the repairment of after approaching circumferential defects after hypopharyngeal cancer ablation with laryngeal function unpreserved, For it is close to the defect region, safe, easy-to-obtain and easy-to-survive.
Fistula ; pathology ; Humans ; Hypopharyngeal Neoplasms ; surgery ; Hypopharynx ; pathology ; surgery ; Larynx ; Lymphatic Metastasis ; Neck ; Neoplasm Recurrence, Local ; Reconstructive Surgical Procedures ; Surgical Flaps