Objective To investigate the correlation between microRNA-520a and clinicopathological parameters in patients with hepatocellular carcinoma (HCC).Methods The medical records and tissue specimens of 183 HCC patients,who received surgical treatment in the Affiliated Hospital of Taishan Medical College from January 2010 to December 2015,were collected.Quantitative real-time PCR was used to measure the expression of microRNA-520a in HCC tissues and corresponding adjacent tissues from 183 patients with HCC,and its correlation with clinicopathological parameters was analyzed.A one-way analysis of variance was used for comparison between multiple groups,and the independent samples t-test was used for comparison between two groups;Spearman correlation analysis was also performed.Results HCC tissues had significantly lower expression of microRNA-520a than corresponding adjacent tissues (1.92 ± 0.76 vs 2.73 ±1.15,t =-6.731,P ＜ 0.001).The area under the receiver operating characteristic (ROC) curve was 0.711 (95 ％ CI:0.64-0.79,P ＜ 0.001).There were significant reductions in the expression of microRNA-520a in HCC tissues in patients with distant metastasis (P =0.031),advanced TNM stage (P =0.022),positive serum hepatitis B virus (HBV) (P ＜ 0.001),or tumor separation (P =0.026).The Spearman correlation analysis showed that the expression of microRNA-520a was significantly correlated with HBV infection (r =-0.351,P ＜ 0.001) and tumor separation (r =-0.207,P =0.044).Conclusion The expression of microRNA-520a is significantly downregulated in HCC tissues and it may inhibit the progression of HCC.

ObjectiveTo explore the relationship between the duration, MRI characters and prognosis in transient ischemic attack (TIA). Methods36 TIA cases were retrospectively analyzed according to the duration and Magnetic Resonance Imaging Diffusion Weighted Imaging(MRI-DWI). They were divided into two groups, Group A (13 cases) in which TIA continued within 1 h and Group B (23cases) in which TIA continued for 1～24 h. The patients were followed up 3 months and 12 months later. ResultsMRI abnormalities could be found with MRI-DWI in 2 cases in Group A, but 17 cases in group B(χ2=11.416,P=0.001). 1 case in Group A and 14 cases in Group B occurred cerebral infarction within a year(χ2=9.663,P=0.004). ConclusionThe longer TIA duration, the worse the prognosis.

OBJECTIVE To investigate the genetic abnormalities of FHIT gene in nasal and paranasal sinus carcinoma, and to explore its relationship between genetic abnormalities of FHIT gene and etiology of nasal and paranasal sinus carcinoma(NPSC). METHODS The clinical data of 48 patients with NPSC treated with radical operations from 1991 to 2000 were studied retrospectively. Patients included 23 female and 25 male ranging in age from 20 to 71 years. Immunohistochemistry with SP method was used to assess the expression of FHIT in the carcinoma specimens of the patients. Microdissection and denaturating high-performance liquid chromatography (DHPLC) were used to analyze the loss of hereteozygosity (LOH) of DS1234 in exon 8 of FHIT gene. RESULTS The loss of expression of FHIT was found in 5 patients(10.4 %, 5/48). Comparing with adjacent non-neoplastic tissue, reduced expression of HFIT was found in 16 (55.17 %, 16/29) patients. The adenoid cystic carcinoma showed stronger expression of FHIT than squamous cell carcinoma(P

Objective To assess the outcome of de-epithelialied ileocystoplasty combined with strengthened pelvic floor in patients with neurogenic bladder.Methods Twelve patients (9 male,3 female) aged from 18 -27 years (averaged 25 years) with neurogenic bladder received de-mucosalized seromuscular ileocystoplasty combined with strengthened pelvic floor,and were evaluated by urodynamic parmeters,upper urinary tract image appearance,and serum creatinine before and one year after operation.Results After operation,the max cystometric capacity (412 ± 32 ml),bladder compliance (26.2 ± 4.0ml/H2O),relative safety cystometric capacity (368 ±26 ml) and max flow rate (20 ±3 ml/s) were respectively significantly higher than those preoperation(247 ±27 ml,4.4 ± 1.2 ml/cm H2O,206 ±24 ml,11 ±2ml/s,P ＜ 0.05).Moreover,the post voided residual (26 ± 8 ml) and detmsor leakage point pressure (17.8 ±3.6 cm H2O) were significantly lower than those of preoperation (136 ± 25 ml,63.1 ± 4.9cm H2O,P ＜0.05).The vesicoureteral reflux disappeared in five (63％) cases,and was relieved in the remaining three cases.Of the five cases with renal insufficiency,three (60％) cases had normal serum creatinine level,none had increased serum creatinine levels.After operation,late healing occurred in two ( 17％ ) cases,intestinal obstruction in one (8％),vesicoabdominal fistula in one (8％),and no cases had mucous urine.Clean intermittent self-catheterization was performed in one case (8％) to empty the bladder due to a fever resulting from urinary tract infection,the remaining 12 (92％) cases could empty their bladders through abdominal pressure.Conclusions De-mucosalized seromuscular ileocystoplasty combined with strengthened pelvic floor results in a good outcome for the patients with neurogenic bladder.

Objective:To construct GJB2 gene mutaitons common in Chinese EGFP fusion protein vectors, and to search for better way to study the mechanism of deletion mutaitons in GJB2 gene. Method: Non-fusion protein vectors of 235delC, 299-300 del AT and 176 del 16 bp were first made by point mutaiton methods in vitro. Then expression part of the upper 3 mutations were amplified by PCR and the PCR products were cloned into TA cloning vector. After cutting by restriction enzymes EcoRI/BamHI, three deletion mutaions were inserted into pEG-FP-N1 vector. Sequencing was used to verify the validity of the fusion protein vectors. HEK293 cells were trans-fected with the recombinant DNA samples by the liposome complex method. Results The recombined plasmids were highly expressed in HEK293 cells. Green fluorescence singals were distributed uniformly in cytoplasm. Conclusion; GJB2 mutations common in Chinese EGFP fusion protein vectors were constructed successfully. It may provide a better way to explore the reasons of nonsyndromic hearing loss common in Chinese.

OBJECTIVES: Apoptosis may play an important role in the mechanism underlying the GJB2 gene conditional knockout (cCx26) mice cochlear cell death. The objective of this study was to explore the the damage mode of the outer hair cells (OHCs) and its real time point of apoptosis and provide information to further explore the role of apoptosis in the happening of hearing loss in cCx26 mice. METHODS: Cochleae from mice at various developmental stages (P8, P12, and P21) were dissected out and first used to be observed under the scanning electron microscope (SEM). Basilar membranes from mice at P8, P14, P18, and P21 were stained by fluorescein isothiocyanate-conjugated phalloidin and propidium iodide (PI) and examined under confocal microscope. RESULTS: The loss of OHCs of cCx26 knockout mice was first set between P12 and P21 under SEM. Whole mount phalloidin and PI staining revealed that obvious apoptotic appearance of the OHCs surface morphology was observed at P18. CONCLUSION: Typical apoptotic morphology was found in the OHCs in the organ of Corti of the cCx26 mice at P18. This may provide information to further study the role of apoptosis in the occurrence of hearing loss of cCx26 mice.
Animals ; Apoptosis ; Basilar Membrane ; Cell Death ; Cochlea ; Connexins ; Electrons ; Fluorescein ; Hair ; Hair Cells, Auditory, Outer ; Hearing Loss ; Hearing Loss, Sensorineural ; Mice ; Mice, Knockout ; Organ of Corti ; Phalloidine ; Propidium

Objective To study the application value of modified urine nucleoside's detection in prognosis of patients with bladder cancer. Methods We enrolled 85 patients with bladder transitional cell carcinoma confirmed by pathological examination.The 85 patients fulfilled one-year follow-up visit after TUR-BT and were reviewed every three months.The 85 patients did not relapse in the first third month after operation.At the sixth month after operation,20 cases relapsed.18 cases and 19 cases relapsed at the ninth month and the twelfth month after operation.Patients with recurrence added up to 57 cases as the recurrent group.The remaining 28 cases did not relapse at one year after operation as the no recurrent group.Of the 85 cases,55 cases were in T(is) - T1,while 30 cases were in T2 - T4.Of the 85 cases,27 cases were with G1,40 cases were with G2 and 18 cases were with G3.In T(is) -T1,there were 35 cases in recurrent group,while there were 20 cases in the no recurrent group.In T2 -T4,there were 22 cases in recurrent group,while there were 8 cases in the no recurrent group.There were 50 normal people in the control group.Highperformance liquid chromatography/electrospray ionization-quadrupole-time-of-flight mass spectromerry was used to measure the levels of change of two urine modified nucleosides (M1A,1-MeI) which the patients with bladder cancer had different pathology grades,clinical stages,before or after operation and recurrence or no recurrence. Results The levels at third month after operation in no recurrent group ( M1A:3.24 ± 0.40,1 -MeI:5.73 ± 0.67 ) were significantly lower than that before operation ( M 1A:4.34 ± 0.98,1-MeI:14.22 ± 4.05,P ＜ 0.005 ),and remained in low status at another time points after operation.The levels at the third month after operation in recurrent group (M1A:3.31 ±0.33,1-MeI:5.67 ±0.55) were significantly lower than that before operation ( M1A:4.32 ± 1.19,1-MeI:14.31 ± 4.12,P ＜ 0.005 ),which was on the rise and indicating a high level approaching the condition before operation.According to the time point before the operation,recurrent group and no recurrent group were higher than control group (M1A:2.91 ±0.84,1-MeI:5.56 ± 1.25,P ＜ 0.01 ).The levels at the sixth month,ninth month and twelfth month after operation in recurrent group ( M 1A referring to 4.04 ± 0.48,4.11 ± 0.47,4.09 ± 0.53 ;1-MeI referring to1 1.46 ± 1.34,12.14 ± 1.22,12.33 ± 1.27) were the highest (P ＜ 0.01 ).The levels of change of two urine modified nucleosides between pathology grade and clinical stage had no statistical difference ( P ＞ 0.01 ).The levels in recurrence group in T(is) - T1 ( M1 A:5.92 ± 1.28,1-MeI:20.01 ± 8.53 )were higher than the levels in no recurrent group ( M1A:4.02 ±1.22,1 -MeI:11.21 ± 6.45,P ＜ 0.05 ),which was the same in T2 - T4. Conclusion Urine modified nucleosides detection offer a certain clinical value the prognostic of operated bladder cancer patients.

Objective:To determine the content of triptolide in different parts of Tripterygii radix by high performance liquid chromatography. Methods:Tripterygii radix was determined by high performance liquid chromatography with Agilent Technologies C18 column (4.6 mm × 250 mm, 5 μm), acetonitrile-water (33:67) as mobile phase, flow rate of 1 ml/min, the column temperature of 30 ℃, injection volume of 20 ml and wavelength of 218 nm. Results:The linear relationship of triptolide was good in the range of 0.204-2.040 μg ( r=0.999 9), and the average recovery rate was 93.35%; RSD was 1.56% ( n=6). The lignin content in different parts of root was higher than that of the skin. Conclusions:The method is simple, rapid and accurate, which could be used to determine the content of triptolide in Tripterygii radix.

Objective:To explore the possible related factors of Beh?et's disease complicated with tendinitis, in order to better understand the etiology and development mechanism so to guide clinical diagnosis and treatment.Methods:The clinical data of patients with Beh?et's disease complicated with tendonitis treated at Department of Rheumatology and Immunology of Lanzhou University Second Hospital from October 2018 to September 2019 were retrospectively reviewed and related literature were reviewed.Results:Two patients were diagnosed as Beh?et's disease. Foot pain occurred during the treatment. Ultrasound showed tendonitis, and the corresponding treatment relieved the symptoms.Conclusion:Tendons may be involved and presents as a chronic change in patients with Beh?et's disease. In patients with rheumatic diseases, attention should be paid to the correlation between the disease and tendonitis. Aggressive treatment can prevent adverse consequences.

OBJECTIVE: To construct GJB2 gene mutations common in Chinese EGFP fusion protein vectors, and to search for better way to study the mechanism of deletion mutations in GJB2 gene. METHOD: Non-fusion protein vectors of 235delC, 299-300 del AT and 176 del 16 bp were first made by point mutation methods in vitro. Then expression part of the upper 3 mutations were amplified by PCR and the PCR products were cloned into TA cloning vector. After cutting by restriction enzymes EcoRI/BamHI, three deletion mutations were inserted into pEGFP-N1 vector. Sequencing was used to verify the validity of the fusion protein vectors. HEK293 cells were transfected with the recombinant DNA samples by the liposome complex method. RESULT: The recombined plasmids were highly expressed in HEK293 cells. Green fluorescence signals were distributed uniformly in cytoplasm. CONCLUSION GJB2 mutations common in Chinese EGFP fusion protein vectors were constructed successfully. It may provide a better way to explore the reasons of nonsyndromic hearing loss common in Chinese.
Asian Continental Ancestry Group ; genetics ; Connexin 26 ; Connexins ; genetics ; Genetic Vectors ; Green Fluorescent Proteins ; genetics ; Humans ; Sequence Deletion