Objective To investigate the changes of molecular markers in cultured skin stem cells exposed to UVB in vitro. Methods Skin stem cells were isolated and cultured according to their adherasion ability,and identified by immunohistochemistry using anti-K15 and anti-β-integrin antibodies. Then, a part of the skin stem cells were irradiated with UVB at 10 mJ/cm2 for 2 times. After 24-hour additional culture, the expressions of CD34, beta-catenin and p53 were detected with immunohistochemistry. Results Skin stem cells showed a high density in culture free of irradiation, which were round or polygon with a clear shape, well-distributed cytoplasm, high N/C ratio; mitotic cells could be seen. In unirradiated skin stem cells, beta-catenin was expressed predominantly in cell membrane and cytoplasm, with a positive expression rate of 64.74% and 8.4%in membrane and cytoplasm respectively; p53 was expressed mainly in cell cytoplasm and nuclei, with a positive expression rate of 6.9% in cell nuclei. After exposure to UVB, skin stem cells decreased in cell density and N/C ratios with a deformed and anomalous shape, vacuoles were present in cytoplasm, and some cells experienced karyopyknosis or apoptosis. Additionally, in irradiated cells, beta-catenin was expressed predominantly in cytoplasm with a positive expression rate of 64.74% and 0 in cytoplasm and nuclei, respectively; p53 was expressed mainly in nuclei with a positive expression rate of 100%. CD34 was detected in neither unirradiated nor irradiated skin stem cells. Conclusion UVB can promote beta-eatenin to accumulate in cytoplasm as well as beta-catenin and p53 to migrate from cytoplasm to nuclei.

OBJECTIVE:To evaluate the economic effectiveness of different pharmacotherapeutic schemes for the same disease.METHODS:Using pharmacoeconomical cost-effectiveness analysis,four therapeutic schemes for treating peptic ulcer bleeding,schemes A,B,C and D,were compared.RESULTS:The total effect rate of scheme A was the lowest(61.53%).The cost-effectiveness ratios of A,B,C and D were 1.09,10.70,10.74,17.20,respectively.Using sensitivity analysis;the cost-effectiveness ratios were 0.98,9.63,9.66,15.48,respectively.CONCLUSION:Among the four schemes,scheme C was the best one.

Biliary stricture after cholecystectomy poses difficult management problems to surgeons because of high and stable incidence.In contrast to malignant stricture,benign stricture requires durable repair.Repeated operations may not only increase the suffering of the patient,but also reduce the likelihood of a better outcome. A 56-year-old woman with biliary stricture after cholecystectomy who had undergone several operations in other hospitals was admitted to Chinese PLA General Hospital.Computed tomography (CT) scan showed a dilated biliary tree and localized the level of ductal obstruction in the hepatic hilar stricture.In addition,CT identified fluid collections in the left upper quadrant and no artery injury was detected. Ultrasound-guided percutaneous abdominal drainage was performed to control the abdominal infection. Magnetic resonance cholangiopancreatography classified the injury as Bismuth Ⅲ.The patient with bile leakage and severe abdominal infection was treated with antibiotics before the final operation.On June 1,2012,the patient received Roux-en-Y hepaticojejunostomy.After operation,the patient recovered smoothly without severe complications,such as bile leakage,cholangitis and recurrent stricture.Liver function of the patient was back to normal and T tube drainage was pulled out at the end of 3 months of follow up.

Humans ; Medicine, Chinese Traditional ; Respiratory Tract Diseases ; prevention & control ; therapy ; virology ; Virus Diseases ; prevention & control ; therapy

Objective Percutaneous coronary intervention( PCI) is effective in improving the ischemia and prognosis of pa-tients with acute myocardial infarction ( AMI) to reduce the short-term mortality.However, little research has been done on PCI in eld-erly AMI patients.The study aimed to evaluate the efficacy and the safety of percutaneous coronary intervention in elderly AMI patients (≥75 years old) . Methods 213 AMI patients who underwent emergency PCI in Jingling Hospital from January 2012 to December 2013 were divided into 2 groups:elderly group (≥75 years old, n=57) and non-elderly group (<75years old,n=156).Retrospec-tive analysis were made on the clinical data and the coronary intervention features of the patients. Results There were more patients having dyspnea, fatigue and other heart failure symptoms at the onset of first-break AMI in elderly group than in non-elderly group (21.1%vs 3.2%,P<0.0).More women (47.4% vs 16.7%,P<0.01) and more patients with hypertention or diabetes mellitus were found in elderly group.The procedure success rates with TIMI-3 flow grade of post-PCI in both groups were very high (100%). Compared with non-elderly group, the occurrence of the procedure-related complications (3.5%vs 2.6%,P=NS) and major adverse cardiac event rates (8.8%vs 6.4%,P=NS) and in-hospital mortality (5.3%vs 2.6%,P=NS) showed no significant difference.Conclusion There are more atypical clinical symptoms in elderly AMI patients. The emergency PCI in elderly AMI patients can effectively make artery unimpeded with high successful rate, few com-plications and a favorable short-term prognosis.

Objective To investigate the value of diffusion tensor tractography (DTT) quantitative assessment of corticospinal tract (CST) damage in acute intracerebral hemorrhage (ICH). Methods Thirty-two patients were enrolled in this study. DTT was obtained in early stage of ICH. The CST was reconstructed with Volume One 1.64 and diffusion Tensor Visualizer (dTV) software from Tokyo University. The compression, the displacement, the destruction, and the relative remaining number of the CST were calculated. Results The compression, the displacement and the destruction of the CST were observed in DTT images in all patients. The correlation coefficient between remaining number of the CST and score of Fugl-Meyer after the onset of ICH was 0.75 (P＜0.01). Conclusion DTT can quantitatively evaluate the state of CST injury in acute ICH.

Objective To study the recent effect of ovary dislocation during the operation of cervical squa- mous carcinoma with stageⅠon ovary function.Methods 12 cases with cervical squamous carcinoma of stageⅠwere treated with surgery.During the operation bilateral ovaries with blood vessels were dislocated the abdominal cavity over the umbilical line through postperitoneum and fixed on the postperitoneum.12 cases were hysterec- tomized simply as the control.The change of ovary function was observed in one year after the operation.Results The levels of FSH and E_2 were decreased in the dislocating group(P

Objective To establish QAMS method to determine the contents of three alkaloids in bile processed Coptidis Rhizoma; To compare the results of QAMS with those from external standard method; To prove the feasibility of QAMS.Methods An HPLC method was developed. Berberine hydrochloride was selected as the internal reference substance. 2 relative correction factors (RCF) of berberine hydrochloride to palmatine hydrochloride and to jatrorrhizine hydrochloride were established. Obtained RCFs were used to conduct content calculation (calculated value) to complete QAMS method. At the same time, the contents (measured value) of the three components were also determined by external standard method. Calculated value and measured value were compared.Results The analysis results showed that there was no significant difference between the calculated values and the measured values of the three alkaloids in 10 batches of bile processed Coptidis Rhizoma.Conclusion The QAMS method can be applied in the determination of alkaloids in bile processed Coptidis Rhizoma.

Objective T7 cDNA phage display system and bioinformatics methods were employed to find the binding protein to the PreS1 protein of hepatitis B virus (HBV). Methods PreS1 protein was coated in ELISA plate as the target protein, and then T7 cDNA library phage display system was used to scan the binding protein or peptide. A piece of cDNA was found to have the function to bind the PreS1 protein, and the product was named as PreS1 binding protein (PreS1BP). Using BLAST in GenBank, the amino acid sequence of PreS1BP was compared in the protein sequence database. Results The amino acid sequence of PreS1BP was identified as a piece of glioma tumor suppressor candidate region gene 2 (GLTSCR2), and the length of cDNA of PreS1BP was proved to be 1436 nt. The gene was located at chromosome 19q arm (19q13.3) with a length of 11445 base pair between 10403483 and 10414989, containing 13 exons and 12 introns. Conclusion HBV PreS1BP gene could be obtained by T7 cDNA phage display system in combination with bioinformatics methods.

A set of specific primers was synthesized according to DNA sequence of HBV found in China, the reverse transcriptase (RT) region in polymerase gene was amplified by PCR method from the serum of 3 patients with chronic HBV infection, and then the PCR products were subcloned into pGEM Teasy vectors. 13 clones were sequenced. Sequence comparison of the selected clones was made to look for the difference. After being compared, 13 sequences of RT were found different. Besides 2 clones with long sequence deletion, the different rate of RT coding nucleic acid sequences, RT and HBsAg amino acid sequences of the 11 clones is 5 1%, 4 9% and 7 5%, respectively. Many mutation types, including point substitution and deletion mutation, were found in this region. There is quasispecies population and defective HBV genome in patients with chronic HBV infection.