1.Role of NFIC on cAMP-mediated diferentiation of stem cells from the apical papilla
Yan LIANG ; Jing ZHANG ; Song LI
Acta Universitatis Medicinalis Anhui 2017;52(2):190-193
Objective To investigate the role of NFIC on the stimulation effects of cAMP-induced differentiation of stem cells from the apical papilla ( SCAPs) in vitro. Methods SCAPs isolated from dental papilla of human imma-ture third molars were cultured by enzyme digestion. SCAPs were transfected with lentivirus that overexpressed NF-IC gene ( ov-NFIC) or an empty vector ( LV-empty) and co-treatment with Forskolin. Mineralized nodule formation of each group was measured by alizarin red staining. Quantitative real-time reverse-transcription polymerase chain reaction was performed to test the expressions of RUNX2,ALP,OCN mRNA. Results Forskolin increased the ex-pression of Runx2, ALP, OCN mRNA as well as matrix mineralization in SCAPs, and the stimulation effects of For-skolin were enhanced by overexpressing NFIC gene. Conclusion The results indicate that NFIC can promote cAMP-induced differentiation of SCAPs.
2.Collation and digitalization of health-promoting Qigong in formulas or rhymes
Hong LIU ; Yan XU ; Min JING ; Yu SONG ; Zhikun ZHANG
Chinese Journal of Medical Library and Information Science 2013;(12):29-32
After the history of health-promoting Qigong was described, the collation and digitalization plan of Qigong in formulas or rhymes was put forward, then a Qigong in formulas or rhymes database was constructed based on their indexing, the health preserving and cultural value of Qigong in formulas or rhymes was mined.
3.Expression and its clinical significance of adisintegrin and metalloprotease-17 in human glioma
Yan ZHANG ; Suqin ZHENG ; Xuepeng ZHANG ; Jinlu LI ; Jing SONG
Clinical Medicine of China 2013;29(11):1121-1123
Objective To investigate the expression and its clinical significance of adisintegrin and metalloprotease-17 (ADAM17) in human glioma.Methods The expressions of ADAM17 in human glioma were detected by immunohistochemical staining.The correlation between ADAM17 expression and the malignance of glioma was analyzed.Results Expression of ADAM17 in human gliomas increased.With the malignant degree,ADAM17 expression has also further increased.However,there was a less ADAM17 expression in normal human brain.The positive expression of ADAM17 in low malignant group was 75% (18/24),of which 1 case were strong positive.The strong positive expression of ADAM17 was the majority (82.1%,23/28) in malignant group.Conclusion The expression of ADAM-17 was higher in human brain gliomas.With malignance degree increased,of the ADAM-17 expression has gradually increased,suggesting that ADAM-17 might play a certain role in the occurrence and development of glioma.
4.Application of 3.0 T mobile iMRI and neuronavigation in the microsurgical operation for the high grade gliomas in brain functional area
Changhe PANG ; Jing YAN ; Jiang LONG ; Wei DU ; Laijun SONG
Chinese Journal of Microsurgery 2015;38(4):323-327
Objective To investigate the clinical application of 3.0 T mobile iMRI and neuronavigation in the microsurgical operation for the high grade gliomas in brain functional area.Methods The clinical data of 47 cases which were operated from April,2012 to August,2014 assisted by intraoperative magnetic resonance and neruonavigation system were analyzed retrospectively,including 19 cases of near the frontal motor areas,21 cases of closed to the dominant hemisphere language areas,and 7 cases of involved multiple lobes of the brain.The operative plans were made before the operative day using 3.0 T iMRI for T1-MPRAGE plain and enhancement magnetic resonance imaging sequence,diffusion tensor imaging (DTI) sequence and blood oxygenation level dependent functional MRI (BOLD-fMRI) sequence scanning.Before the start of operation,the margin of the tumor was marked on the scalp,and removed the tumor under the microscopy,according to the need 1-4 iMRI plain scan and enhanced scan were applied to reconstruct the real-time imaging of the residual tumors and corticospinal tract,and gained once more chances to remove the tumor repeatedly,until the tumor was removed totally,accurately and safely.Results The total resection rate increased from 63.8% (30/47) to 95.7% (45/47) by repeated resection,and 2 cases (4.3% lesions) with subtotal resection.The dysfunction of motion and the language barrier got worse in 4 patients (8.5%).No cases with sever complication such as death and severe disability after operation.There were no intracranial hemorrhage,infection and other adverse events.Patients were followed up with nervous system symptoms and head MRI,the follow-up period was 3 months-2 years.Twenty-eight cases (59.6%) ob-tained good clinical efficacy;the dysfunction of motion and the language barrier got worse in 4 cases (8.5%);the symptoms and tumors recurrenced in 15 cases (31.9%).Conclusion The 3.0 T mobile iMRI system combined with functional neuronavigation can accurately display the relationships among the motor and language cortex,tumors and white matter fiber bundles real-timely.The extent of the tumor resection can be assessed accurately by real-time images provided by iMRI,and the residual tumor have chames to be resected repeatedly,until the tumors were resected totally before operation finished.The iMRI system can correct intraoperative brain shift timely.The total resection rate can be improved safely and accurately by one or more times resection.
5.The value of three-dimensional ultrasound in evaluating carotid artery plaquevolume and predicting risk events in coronary heart disease patients
Yan SONG ; Ying DANG ; Jing SHANG ; Bo LIU ; Litao RUAN
Journal of Xi'an Jiaotong University(Medical Sciences) 2017;38(5):706-709
Objective To assess whether the plaque volume of carotid artery evaluated by three-dimensional ultrasound can predict the risk of cardiovascular events earlier in patients with coronary heart disease, in comparison with plaque thickness.Methods A total of 99 patients were enrolled, including 66 patients with asymptomatic carotid plaque and 33 patients with coronary heart disease (CHD) and carotid plaque.Three-dimensional ultrasound was performed in all the patients.Coronary angiography was performed in all the patients in CHD group.Coronary artery Gensini score was calculated.Plaque thickness, plaque area and plaque volume were compared between the two groups.We analyzed the relationship of plaque volume with Gensini score and other cardiovascular risk factors.Results Plaque volume was significantly higher in CHD group [(1312.38±513.70)mm3] than in asymptomatic group [(947.54±321.41)mm3] (P=0.023).However, plaque thickness and plaque area were not significantly different between the two groups (P>0.05).Plaque volume was positively correlated with Gensini score (r=0.519, P=0.002), homocysteine (r=0.569, P=0.002), and cardiovascular risk factors such as diabetes, blood glucose and glycosylated hemoglobin.There was a negative correlation between plaque volume and high-density lipoprotein (HDL), a factor protecting against cardiovascular events (r=-0.387, P=0.038).Conclusion Compared with plaque thickness, the volume of carotid plaques assessed by three-dimensional imaging technique may be a better predictor of the risk of cardiovascular events in patients with coronary heart disease.
6.Inhibition of Interferon-inducible Protein 16 Expression Reduces the Apoptosis in Human Aortic Adventitial Fibroblasts
Yan XIAO ; Fang SONG ; Qiang WU ; Jing HUANG
Chinese Circulation Journal 2017;32(5):511-514
Objective: To study the impact of interferon-inducible protein 16 (IFI16) inhibition on apoptosis of human aortic adventitial fibroblasts (HAAFs). Methods: Our research included 3 groups: ① IFI16-siRNA group, specific small interference RNAs (siRNAs) of IFI16 were transfected into HAAFs in vitro to make IFI16 gene silence, ②Con-siRNA group, non-specific siRNAs were transfected into HAAFs as negative control and ③Untreated HAAFs group, blank control. HAAFs cell cycle and apoptosis rate were examined by flow cytometry, IFI16 mRNA expression was measured by real time qRT-PCR, protein expressions of IFI16, p53, p21, Bax and Bcl-2 were detected by Western blot analysis. Results: Compared with Con-siRNA group and Untreated HAAFs group, IFI16-siRNA group showed decreased apoptosis rate of HAAFs (3.33±0.41) % vs (7.42±1.51) % and (6.49±1.10) %, P<0.05, reduced ratio of G0/G1 phase cells (56.64 ± 4.77 ) % vs (69.67±3.54) % and (68.29±4.14) %, P<0.05, while increased ratio of S phase cells (25.23±5.19)% vs (13.76±2.07) % and (14.04±3.00) %, P<0.05. Meanwhile, IFI16-siRNA group presented down-regulated IFI16 mRNA and protein expressions, decreased protein levels of p53, p21, Bax and increased protein level of Bcl-2, all P<0.05. Conclusion: Inhibited IFI16 expression could decrease HAAFs apoptosis, promote cell cycle transition from G1 to S phase which might be related to the suppression of p53/p21 signaling pathway and regulation of Bax/Bcl-2 expression.
8.Study on the relationship between RBP4,Hcy and diabetic retinopathy
Jing YANG ; Li LI ; Qian SONG ; Yan ZHANG
International Journal of Laboratory Medicine 2017;38(17):2386-2388,2392
Objective To investigate the changes and correlation of retinol binding protein 4 (RBP4) and homocysteine (Hcy) levels in patients with diabetic retinopathy (DR).Methods 124 cases selected from the department of endocrinology admissions of patients with type 2 diabetes,divided into diabetic patients with non proliferative retinopathy group (NPDR group,40 cases),diabetes with value-added retinopathy group (PDR group,41 cases),diabetic retinopathy group (NDR group,n=43) and healthy volunteers group (NC group,40 cases),fasting venous blood indexes,correlation and multiple regression analysis in parallel.Results The RBP4,Hcy in PDR group were higher than NPDR group and NDR group,the difference was statistically significant(P<0.05);The RBP4 and Hcy in NPDR group were higher than NDR group,the difference was statistically significant(P<0.05);RBP4 and FPG,HbA1c,TC,TG,LDL-C and Hcy showed a positive correlation(P<0.05),and HDL-C showed a negative correlation(P<0.05),FPG and Hcy;HbA1c,TC,TG,LDL-C and RBP4 showed a positive correlation(P<0.05),and HDL-C showed a negative correlation(P<0.05);multi factor regression analysis,diabetic retinopathy and Hcy,RBP4 and HbA1c showed a positive correlation(P<0.05).Conclusion The levels of Hcy and RBP4 in patients with DR are highly expressed,and gradually increase with the progression of the disease,which is positively related to the occurrence and development of DR,and can be used as an important risk factor.
9.Comparison of effects of different methods of general anesthesia on postoperative cognitive function in patients undergoing non-cardiac surgery
Kaiyun FANG ; Yan ZHU ; Jie SHANG ; Kailian SONG ; Huaizhong MO ; Jing HE ; Jing SHI
Chinese Journal of Anesthesiology 2014;34(z1):28-31
Objective To compare the effects of different methods of general anesthesia on postoperative cognitive function in patients undergoing non-cardiac surgery.Methods One thousand ASA Ⅰ or Ⅱ patients,aged 18-60 years and undergoing non-cardiac surgery,were randomly divided into five groups (n=200 each):isoflurane + propofol + fentanyl group (group IPF),isoflurane + remifentanil group (group IR),sevoflurane + propofol + fentanyl group (group SPF),sevoflurane + remifentanil group (group SR),and propofol + remifentanil group (group PR).Two hundred patients receiving non-operative treatment served as control group (group C).In groups IPF and SPF,anesthesia was maintained with inhalation of 1.68% isoflurane or 1.71% sevoflurane,target controlled infusion (TCI) of propofol with the target plasma concentration of 2-5 μg/ml,and intermittent intravenous boluses of fentanyl.In groups IR,SR and PR,anesthesia was maintained with inhalation of 1.68% isoflurane or 1.71 % sevoflurane,or TCI of propofol with the target plasma concentration of 2-5 μg/ml,and TCI of remifentanil with the target plasma concentration of 2-6 ng/ml.The patients' cognitive function was assessed with minimental state examination (MMSE) 1 day before operation,when leaving the post-anesthetic care unit (PACU),and 1 and 3 days after operation,respectively.Z score was used to identify the cognitive dysfunction as recommended by Moiler when leaving the PACU,and 1 and 3 days after operation.Results Compared with group C,the MMSE score was significantly decreased when leaving the PACU,and the incidence of cognitive dysfunction increased when leaving the PACU and 1 day after operation in the other groups (P < 0.05).Compared with groups IPF,IR,SPF and PR,the incidence of cognitive dysfunction was significantly increased in group SR (P<0.05).Conclusion General anesthesia with sevoflurane combined remifentanil exerts fewer effects on the postoperative cognitive function in patients undergoing non-cardiac surgery.
10.Optimum of Submerged Fermentation Parameters for Chromium-rich Mycelia of Coprinus comatus*
Yan-Fang LIU ; Jing-Song ZHANG ; Yan YANG ; Qing-Jiu TANG ;
Microbiology 1992;0(05):-
Submerged fermentation parameters for the chromium-rich mycel ia of Coprinus comatus was studied in optimal medium. According to the yield of organic Cr, the optimal fermentation parameters were obtained as follows: the amount of CrCl_3 6H_2O in medium was 200mg/L; the inoculation volume was 8%~10%; the aeration ratio was 80:250 (medium volume: flask volume); the cul tural period was 5 days at 26℃ and at 100r/min. The highest yield of organic C r in mycelia of Coprinus comatus was 1597.88?g/100mL and the enrichment ra te of Cr was about 9.09%.