Objective To explore the value of different surgical methods in the treatment of the displaced femoral neck fracture of the elderly. Methods An follow up study was done on 89 cases older than 65 years who were treated with internal fixation, femoral head arthroplasty and total hip joint replacement between 1998 and 2003 to compare the difference upon operation time, blood loss, duration of hospitalization, joint function evaluation one and two years after operation, complications and reversion rate. Results The internal fixation group had the shortest operation time and hospitalization and the least blood loss but the longest immobilization time, highest complication rate and reversion rate as well as the worst joint function. While the total hip joint replacement group had the least immobilization time, the lowest complication rate and reversion rate, best joint function but required better health condition. The femoral head arthroplasty group had the least operation injury but had relative higher reversion rate and worse joint function compared to the total hip joint replacement group. Conclusion Total hip joint replacement is suitable for the displaced femoral neck fractures of the elderly, especially those who are active have relative longer life expectancy and good general condition.

This study was aimed to assess the proportion and causes of misdiagnosis of pancreatic cancer (PC), and the effects of misdiagnosis on and treatment of PC, so as to sum up experiences and improve the diagnosis and treatment. 1027 cases with confirmed diagnosis of PC were retrospectively analyzed in detail. The patients were divided into misdiagnosed group and a group with correct diagnosis. The relevant data of the two groups were analyzed by stastical methods, and the differences between them were assessed. It was found that 586 cases (57 1%) were misdiagnosed.Fifty five diseases were involved in misdiagnosis, among them gastritis and duodenitis, peptic ulcer, virus hepatitis, cholecystitis and cholelithiasis, chronic pancreatitis wese the commonest. The differences of duration of diagnosis, main symptoms, resection rate, and half year survival rate between misdiagnosed group and correct diagnosis group were significant. It is concluded that PC is often misdiagnosed as other diseases. Early diagnosis and treatment is critical to the prognosis. The physician should be aware that PC may present a veriety of clinical manifestations, and therefore he or she should analyze comprehensively the symptoms and signs in order to improve diagnosis and treatment.

To study the clinical features of the pancreatic cancer (PC), clinical symptoms of 1027 diagnosed cases of PC were retrospectively analyzed in detail, including their dynamic changes with regards to the patients'sexes, ages, blood types, and tumor locations in the pancreas. The results showed that abdominal pain, jaundice and epigastric discomfort were the prevailing initial symptoms in these 1027 cases. Abdominal pain, jaundice, weight loss, and anorexia were the main symptoms. Unusual symptoms were seemed to be different in different patients. The clinical symptoms could be dramatically different with difference in patients′ age and tumor location. The blood type might also infhluence the clinical symptoms in certain degree. It is concluded that the clinical symptoms of the PC were atypical in general, but still there were some characteristics.The physician should grasp these characteristic symptoms in order to make an early diagnosis.

Objective To determine the effects of polymorphism of A9570G in angiotensin I converting enzyme 2 gene ( ACE2) gene on cardiac dysfunction and ventricular remodeling after myocardial infarction. Methods 252 patients with old myccardial infarction were included in this study. They were classified according to their polymorphisms of ACE 2 gene analyzed by polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP). Echocardiograms were used to determine left ventricular end diastolic diameters (LVEDd) , Left ventricular mass index (LVMI) , mitral flow pattern early diastolic and late diastolic peak flow ratio (E/A) and left ventricular ejection fraction ( LVEF). Results In male, LVEDd, LVMI, and LVEF had significant difference among ACE2 genotypes ( t = 2. 609,3.527and 2.063, P =0.010,0.001 and 0.041), and no significant differences in E/A( t =0.689,P =0.492). In female,LVEDd, LVMI, E/A and LVEF had no significant difference among ACE2 genotypes( F =0. 848, 0.077,0. 985 and 1.611, P = 0. 432,0. 926,0. 377 and 0. 205 ). Conclusion The polymorphism of A9570G in ACE2 gene may be associated with cardiac dysfunction and ventricular remodeling after myocardial infarction in male. ACE 2 gene polymorphism may be a genetic factor on cardiac dysfunction and ventricular remodeling after myocardial infarction.

Objective To appraise the postoperative anti-reflux function of vertical esophagogastic valve-plasty anastomosis for cardiac cancer.Methods Forty patients with cardiac cancer were randomly divided into study group and surgery control group,with 20 patients in each group.The study group underwent vertical esopagogastric valve-plasty anastomosis,while the surgery control group underwent conventional esophagogastrostomy.Ten healthy volunteers were recruited as normal control group.A 24-hour esophageal pH monitoring and endoscopy check-up was carried out in all experimental subjects at 90 days postoperatively.Results All of the pH monitoring indexes in study and surgery control groups were higher than those in normal control group(P

Objective To investigate the current status of iodine deficiency disorders in Lianyungang,Jiangsu Province,and to evaluate the effectiveness of prevention and control measures.Methods Using population probability proportional to size sampling method (PPS),in Lianyungang City,30 townships (towns) were selected,one primary school was selected in each township (town),fifty 8-10 years old students (half male and half female,uniformly distributed in age groups) were selected in each school,and goiter was examined; one random urine sample was collected to survey the urinary iodine content; household salt sample was collected to survey the salt iodine content.At the same time,30 students from Grade 5 in each school were selected,and health education questionnaire survey was conducted.In the village where the primary school located,5 housewives were selected and a questionnaire survey was conducted; salt samples were collected and salt iodine level was tested by semi quantitative detection on site; 2-5 drinking water samples were collected and the water iodine level was determined in the village.One random urine sample from twenty pregnant women and 10 lactating women in the township (town)was selected and urinary iodine was determined.The goiter was examined by palpation; urinary iodine was detected by arsenic cerium catalytic spectrophotometry (WS/T 107-2006); salt iodine was detected by direct titration,Sichuan salt and other fortified edible salt were tested by arbitration law (GB/T 13025.7-2012); water iodine was detected by the method suitable for iodine deficiency and high iodine areas (recommended method of reference laboratory of national iodine deficiency disorders).Results One thousand and five hundred children aged 8-10 years old were examined by palpation,18 children had goiter,and the goiter rate was 1.20％ (18/1 500).One thousand and five hundred urine samples of children aged 8-10 years old were tested,and the median of urinary iodine was 239.62 μg/L.A total of 1 500 salt samples were tested; the coverage rate of iodized salt was 96.73％ (1 451/1 500); the rate of qualified iodized salt was 93.53％ (1 403/1 500); and the non-iodized salt rate was 3.27％ (49/1 500).The number of question of the questionnaire survey of health education about iodine deficiency disorders among students and housewives was 2 697,450; the number of correct answer was 2 542,410; the pass rates were 94.25％ and 91.11％,respectively.Sixty-six drinking water samples were collected,water iodine median was 13.5 μg/L.Six hundred and one,two hundred and ninety-eight urine samples of pregnant women and lactating women were monitored,and the median of urinary iodine was 176.12 and 150.03 μg/L,respectively.Conclusion The status of iodine nutrition among residents in Lianyungang City has improved,the control effect of iodine deficiency disorders is significant,and the achievements are stable.

This experiment was designed to investigate the effects of different chitosan on preventing peritoneal adhesion in rats. 240 SD rats were divided into 2 jumbogroups: jumbogroup A (144 rats) treated with chitosan gel and jumbogroup B (96 rats) with chitosan/gelatin mixed film. In jumbogroup A, 144 rats were randomly divided into 3 groups further, and different methods were used to induce peritoneal adhesions in each group while in the experiment group the wounded processus vermiformis was coated with chitosan gel before it was put back into the abdominal cavity. In jumpbogroup B, 96 rats were randomly divided into 4 groups (24 each) after surgical induction of perioneal adhesions; group B1 served as control group while in groups B2, B3 and B4, pure chitosan film and the chitosan film containing gelatin were respectively spread over the surface of the wounded. 2 and 4 weeks after surgical induction, exploratory laparatomy was performed on the rats to evaluate peritoneal adhesion, and the adhesive tissues were examined histopathologically. The results show that chitosan gel has perfect protective efficacy against traumatic or ischemic peritoneal adhesion, but pure chitosan film and the film chitosan containing gelatin could exacerbate peritoneal adhesion further.
Animals ; Chitosan ; administration & dosage ; chemistry ; pharmacology ; Female ; Gelatin ; administration & dosage ; pharmacology ; Gels ; administration & dosage ; pharmacology ; Male ; Peritoneal Diseases ; prevention & control ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Tissue Adhesions ; prevention & control

Objective: To prepare monoclonal antibodies (McAb) with cardiac troponin I (cTnI) which was purified from fresh human cardiac muscle within 6 h. Methods: (1) Extraction and purification of human cTnI: cTnI was purified by high salt extraction, saltless precipitation, 65℃ treatment, ammonium sulfate fractionation and DEAE-cellulose chromatography, etc. (2) Preparation of anti human cTnI McAb: The purified cTnI was injected into the spleen of BALB/c mice. The cTnI-primed spleen cells were fused with Sp2/0 myoloma cell. The McAbs anti human cTnI were obtained by screening with indirect ELISA and 3 times clone. (3)The identification of anti cTnI McAb. Results: Five hybridoma cell lines, named 3A7，3A11，3D2，3F10 and 1H9 were developed, which could secret McAb stably. The 5 McAbs all were demonstrated to be IgG2a by double gel diffusion test. The number of hybridoma chromosomes was between 92 to 110 and the chromosomes were mainly telocentric. Five kinds of ascites had no cross-reaction to LDH，CK，CK-MB ，AST and cardiac troponin T(cTnT), and their titers were between 3.2×10-6 to 1.6×10-7. Conclusion: 3D2，3F10 and 3A7,3A11,1H9 react to different epitopes of cTnI.

Aim To investigate the protective effects of YXETNZ injection on SH-SY5 Y cells damaged by oxygen-glucose deprivation ( OGD ) , and explore its functional mechanisms. Methods After 4 h of OGD, the cells were treated with 25 mg·L-1 drugs for 1 h. Subsequently, cell viabilities were measured by cell counting kit-8 ( CCK-8 kit ) and cell apoptosis was measured by caspase-3/7 assay kit according to manu-facturer’ s instructions. Furthermore, cell death was also detected by ELISA. The levels of phospho-Akt, phospho-PKA,phospho-Bad were evaluated by western blot. Results Oxygen-glucose deprivation significant-ly decreased the cell viabilities of SH-SY5Y cells, while YXETNZ injection significantly increased cell vi-abilities, phospho-Akt, phospho-PKA and phospho-Bad. Furthermore, YXETNZ injection also reduced the activities of caspase-3/7 and cytoplasmic histone-asso-ciated-DNA-fragments contents. Conclusion Our re-searches demonstrat that YXETNZ injection shows good neuroprotective effects on SH-SY5 Y cells after oxygen-glucose deprivation. The underlying mechanisms may be associated with activation of PI3 K/Akt/Bad/caspase-3/7 , cAMP/PKA/Bad/caspase-3/7 signaling pathway.

Objective To detect the mRNA and protein expressions of desmoglein 1 (DSG1) and DSG3 in different types of keratinocytes (KCs).Methods Two keratinocyte cell lines HaCaT and A431,as well as primary keratinocytes from human abdomenal skin served as the object of this study.Direct immunofluorescence assay was performed to observe and quantify the expressions of DSG1 and DSG3,and quantitative PCR (qPCR) to determine the mRNA expressions of DSG1 and DSG3,in these cells.Results Both DSG1 and DSG3 were expressed in all the three types of keratinocytes,and the fluorescence intensity of DSG1 and DSG3 in HaCaT cells was higher than that in primary keratinocytes but lower than that in A431 cells.Similarly,all the keratinocytes expressed DSG1 and DSG3 mRNA,with the relative expression levels of DSG1 and DSG3 mRNA in primary keratinocytes being 291.7％ and 237.4％ of those in HaCaT cells respectively (both P ＜ 0.01),and those in A431 cells being 0.1％ and 18.8％ of those in HaCaT cells respectively (both P ＜ 0.05).Conclusions HaCaT cells,A431 cells and primary keratinocytes all can be used for the study of DSG1 and DSG3,of which,A431 cells show the strongest expressions of DSG1 and DSG3,and primary keratinocytes display the highest expressions of DSG1 and DSG3 mRNAs.