Objective:To investigate the relationship between telomerase activity and the biological behavior of prostate cancer.Methods:The telomerase activity in prostate cancer tissues was detected by TRAP (telomeric repeat amplification protocol) ELISA which is based upon amplification of the initial telomerase product and detected by ELISA.Results:None of the 10 samples from normal prostates expressed telomerase activity.The thirteen of fifteen cases (86.0%) with prostate cancer presented telomerase activity.The activity of telomerase was associated with the pathological differentiation of prostate cancer.The two of twelve cases (17.0%) with benign prostatic hyperplasia (BPH) expressed telomerase activity,and the activity of telomerase was lower than prostate cancer.Conclusion:The telomerase acitivity may be related to the biological behavior of prostate cancer and can evaluate the malignant potential of prostate cancer.The presence of telomerase acitivity in some cases of BPH may indicate the presence of a minority of malignant cells,as yet clinically undetected,within the population of BPH cells.

Objective To investigate the effect of exogenous vascular endothelial growth factor (VEGF) on bone activity of rabbit heterotopic allograft decalcified bone.Methods 140 adult healthy China white rabbits were selected,no limitation with sex,20 rabbits as the donor preparation of allogenic decalcified bone,according to the random number table,the rest was divided into the experimental group (allograft decalcified bone ± VEGF) and the control group (Allograft decalcified bone),each group contained 60 rabbits.For the experimental group,the prepared 1.5 cm long homologous decalcified tibia was placed in rabbit right thigh of rectus femoris and vastus medialis muscle gap near by saphenous artery,and fixed on the femur with two 0.8 mm Kirschner wire.In the vicinity of the skin,implanted an osmotic pump which contain the VEGF solution 200 μl with concentration was 0.5 μg/ml.In the control group,implanted the isometric allograft decalcified bone in rabbit right thigh corresponding parts with the same method.Each group respectively at 0,2,4,6,8,10 weeks to death 10 white rabbits,By specimen observation,HE dyeing observation and detection of type Ⅰ glue protein fluorescence intensity,Analysis the bone activation degree of two groups of bone allograft decalcified.Results Experimental allograft decalcified bone gradually wrapped by connective tissue membrane,its surface appear different size of the pits and gradually increased and become deep,while the control group pits relatively little and shallow.In the experimental group and control group,the fluorescence intensity of type Ⅰ collagen reached its peak respectively at 8 weeks (47.57 ±3.50) and 10 weeks (45.07±6.02),with no statistically significant (P ＞ 0.05).Conclusion Rabbit allograft decalcified bone implanted in the muscle clearance with abundant blood supply can be transformed into activated bone after 10 weeks,and after applying exogenous VEGF,allograft decalcified bone can be transformed into activated bone after 8 weeks,the bone activation process obviously speed up.The reaults confirmed the exogenous VEGF can obviously promote the ectopic rabbit bone allograft decalcified bone activation process.

Azure Stains ; chemistry ; DNA, Neoplasm ; analysis ; chemistry ; Humans ; Rosaniline Dyes ; chemistry ; Staining and Labeling ; economics ; methods ; Stomach Neoplasms ; genetics ; pathology

Objective To observe the effect of irbesartan on the expression of angiopoietinlike protein 2 (ANGPTL2) in the diabetic rats kidney and explore the underlying mechanism.Methods A total of sixty male SD rats were divided into normal control group (NC group,n=15) and experimental group (n=45) randomly.The experimental group was fed with high sugar-fat diet and given a low dose streptozocin (STZ 30 mg/kg)to establish type 2 diabetic model.Rats successfully induced diabetes were randomly divided into 2 groups:diabetes group (DM) and irbesartan group (DI).Weight,blood pressure,blood glucose,serum creatinine (Scr),blood urea nitrogen(BUN),24 hour urinary albumin(UAL) and renal histomorphology were observed after drug intervention at the 4th,8th and 12thweeks.The expression of ANGPTL2 in renal tissue were detected by immunohistochemistry,real-time PCR and Western blotting.Results The levels of Scr,BUN,TG,TC and UAL in group DM were higher than in group NC at the 4th,8th and 12th week (all P ＜ 0.05).Compared with that in group DM,above indexes were lower in group DI at the 4th,8th and 12th week (all P ＜ 0.05).The pathological changes of the kidney in group DM were more serious than that in group DI.The expression of ANGPTL2 in group DM was much higher than that in group NC at the 4th,8th and 12th week (all P ＜0.05),and irbesartan treatment inhibited the up-regulation of ANGPTL2 in group DI(all P ＜ 0.05).Conclusion The expression of ANGPTL2 increases in T2DM rats kidney tissue with time and irbesartan can inhibit the up-regulation of ANGPTL2 in T2DM rats.

Objective:To investigate the structure of alveolar bone around incisors in patients with verical facial type of skeletal ClassⅡ by CBCT.Methods:60 skeletal Class Ⅱ patients were divided into low angle,average angle and high angle cases(n =20)by FMA.CBCT scanning was made and the thickness of the labial and lingual alveolar bone around the incisors in each subject was meas-ured.The measurements were analyzed using ANOVA.Results:The total width of alveolar bone at the root apical level of maxillary and mandibular incisors,the lingual thickness of alveolar bone at the root midpoint of maxillary incisors and labial thickness of alveolar bone at the root midpoint of mandibular incisors in the high angle cases were thinner than that in the average and low angle cases(P <0.05),but there was no significant difference in labial thickness of alveolar bone at the crest among 3 groups.Conclusion:The alveo-lar bone thickness around incisors of high angle patients is thinner,more attention should be paid for the alveolar bone absorpation and tooth root exposure in these patients.

Objective To explore the characteristics of chromosome karyotypes in patients with chronic myeloid leukemia (CML),and to provide help to individualized treatment.Methods The date of chromosome karyotypes of 313 patients and FISH of 45 of these patients with CML excluding Ph chromosome negative (Ph-) after treatment were collected from January 2014 to June 2015.Karyotypes were detected by R-banding.Results In the 313 cases,307 cases (98.08 ％) were Ph chromosome positive (Ph+) and 6 cases (1.92 ％) were Ph-.In the Ph+ patients,288 cases (93.81％) were classical Ph+,and 19 cases (6.19 ％) were variant rearrangements.There were 48 cases (15.34 ％) with additional chromosome changes in all patients,including 41 cases (13.10 ％) with classical Ph+ and 7 cases (2.24 ％) with variant rearrangements.The most common additional chromosome changes were in the following order:+der(22) Ph (35.42 ％),+8 (33.33 ％) and +21 (12.50 ％).The most frequent pattern of combination was +der(22) combined with +8 (16.67 ％),followed by +8 combined with +21 (10.42 ％).The proportion of pure Ph+ patients in chronic phase was higher than that of advanced phase,but proportion of classical Ph+ patients with additional chromosome changes in chronic phase was lower than that in advanced phase (x2 =1 11.55,P ＜ 0.01).The proportions of chronic phase and advanced phase patients with simple variant rearrangements were not different from those with complex variant rearrangements (P =0.582).The results of FISH in 45 cases were all positive,including 5 cases with 2 GIR1Y.Conclusion Karyotype analysis can reveal the instability of genetic and the characteristics of disease progression by identifying the evolution of Ph,which provides the basis for clinical doctors to choose suitable treatment.

Objective To analyze the characteristics in the incarcerated inm ate’s death, investigate the m ain cause of death of the incarcerated inm ate and provide som e inform ation for forensic investigation. Methods The cases from the forensic m edical center of Shanxi Medical U niversity from 2005 to 2013 were selected. The statistical analysis w as perform ed by using the incarcerated inm ate’s gender, age, cause of death, m anner of death, and disease as the m arkers. Results There were 100 men, 5 w omen in the 105 incarcerated inm ates;the age range w as from 16 to 65 years;Inm ates were mostly died of nat-ural diseases, m ainly in the respiratory and cardiovascular diseases;the m ain unnatural death w as suicide w ith a rate of 54.5%. Conclusion Atpresent, most incarcerated inm ate’s death are due to natural dis-eases. The prison should im prove incarcerated inm ate’s lives, w ork and health care conditions, and strengthen supervision of law enforcement.

Objective To investigate the biological characteristics of mouse erythrolenkemia cell FBL-3.Methods The morphological feature, growth characters, clone formation and immunochemistry of mouse erythroleukemia cell FBL-3 were examined by light microscope. The cell cycle distribution and expression of MHC were detected by flow cytometry. Drug sensitivity was measured by MTT assay. Tumorigenicity was evaluated after intravenous injection FBL-3 cells into C57BL/6 mice. Results FBL-3 cells were smaller,fusiform or polygon, adherence. Doubling time was 24.12 h. The clone formation rates were (35.23±1.44) %and (60.27±5.56) % at 14 th and 21 th day, respectively. The reactions for PAS and chloracetic acid were positive, while the POX, NAP and butanoic acid reactions were negative. The cell cycle distribution was as follow: G0/G1 phase (50.9±2.5) %, S phase (36.3±1.4) %, G2/M phase (13.8±0.8) %. The IC50 of FBL-3 cells to Ara-C, VDS, DDP, MMC and MTX were (0.49±0.04), (0.87±0. 09), (3.77±0.32), (1.66±0.16) μmol/L and (2.77±0.24) nmol/L, respectively. Chromosome number was at 34 to 41. MHC of FBL-3 cell was H-2b. Sexual gene Sry was positive. All C57BL/6 mice were morbidity with erythroblastic leukemia when FBL-3 cells had been intravenously inoculated. There was a linear relationship between the survival time and the number cell injected. The main targets for the leukemic FBL-3 cells were liver, spleen, kindey and lung. Conclusion FBL-3 cell has typical features of mouse leukemia cell, was easily cultured in vitro and tumorigenesised in C57BL/6 mice. FBL-3 cell could be as a satisfactory tool for the research of leukemia.

Objective To investigate the inhibitory effects and mechanisms of a nature product derivate oridonin on in?vasion of human lung cancer. Methods Human lung cancer A549 and PC-9 cell lines were treated with oridonin. MTS as?say was used to determine cell proliferation. Transwell assay was used to determine the cell invasion, and adhesion assay to determine the cell adhesion. Flow cytometry was used to determine cell cycle. Western blotting and realtime-PCR were used to detect expression levels of CDK1, mTOR, p53, p21, E-cadherin, CD44,β-catenin, uPA, MMP-2/9, p-AKT and p-Src. The luciferase reporter assay was used to detect the NF-κB promoter activity. Results In vitro proliferation, invasion and adhesion of A549 and PC-9 cells were significantly inhibited by oridonin. The cell cycle was halted by G2/M phase, and ex?pressions of E-cadherin, p53 and p21 were promoted, while expressions of CDK1, mTOR, CD44,β-catenin, uPA, MMP-2/9, p-AKT and p-Src and promoter activity of NF-κB were down-regulated. Conclusion Oridonin is able to inhibit the in vitro invasion of human lung cancer A549 and PC-9 cell lines, which might be correlated with its abilities to regulate the ty?rosine kinase activity.

Objective To observe the preventive and therapeutic effects of L-carnitine on the metabolic disorder and cardiac remodeling in alcoholic cardiomyopathy. Methods Experimental animals were divided into three groups: alcohol-fed group(A), an alcohol/L-carnitine fed group(B) and a control group(C). Free fatty acid(FFA) and earnitine were detected in the blood serum at different time. mRNA and protein expressions of peroxisome proliferator-activated receptors (PPARα and PPARγ), retinoic acid receptor retinoid X receptor alpha (RXRα), earnitine palmitoyl transferase isoform and medium-chain acyl-CoA dehydrogenase (MCAD) were observed with RT-PCR and Western blotting methods. Results (1) When group A and B were compared with group C, FFA was increased and carnitine was decreased;mRNA and protein expressions of PPARα, RXRα, CPT-Ⅰ and MCAD were decreased with the development of alcoholic cardiomyopathy (ACM), being more significantly in group A than group B (P < 0.05). (2) mRNA and protein expressions of PPARγ had no statistical significance between these three groups at the end of 2 and 4 months(P>0.05), but after 6 months, they were increased in group B and decreased in group A (A vs. C,P<0.01;B vs. C,P<0.05). Conclusion Metabolic disorder and cardiac remodeling occur in the development process of ACM; they are partly prevented by L-carnitine through downregulating mRNA and protein expressions of PPARct, RXRα, CPT-Ⅰ, MCAD and PPARγ.