1.Effects of Qufengtongluo Recipe on anionic site in glomerular basement membrane in adriamycin-induced nephropathy rats
Yanyun REN ; Wansen SUN ; Yanlong ZHAO ; Qiaoya MA ; Zhu WANG
Journal of Xi'an Jiaotong University(Medical Sciences) 2010;31(1):110-114
Objective To investigate the expression of anionic site in adriamycin-induced nephropathy (AN) rats, and to further explore the effects of Qufengtongluo Recipe on charge barrier in glomerulus in AN rats. Methods Adriamycin nephropathy was induced by a single tail intravenous injection of adriamycin. Totally 80 rats were randomly divided into normal control group and nephropathy model group. Three weeks later, the nephropathy model was established, and 50 AN rats were randomly divided into five groups: nephropathy model group (B, n=10), Qufeng group (C, n=10), prednisone and Qufeng group (D, n=10), prednisone group (E, n=10) and benazepri group (F, n=10), and they were treated respectively. With treatment being given respectively, renal tissue samples in each group were collected at week 3 and 7, respectively. The ultrastructure and expression of anionic site were examined by electron microscope observation. Results ① After adriamycin injection, a significant increase of the 24-hour urinary protein was observed at week 3 (P<0.01). In AN rats, serum albumin was decreased (P<0.01) while serum TCH and TG were increased (P<0.01). ② In AN rats the diffuse fusion and effacement of foot processes and decrease of anionic sites in GBM were observed at week 3. ③ At week 7, the average intensity of AS dramatically increased in C and E groups (P<0.01) compared with that in nephropathy model group. Conclusion The abnormal expression of AS is the important mechanism that leads to the occurrence and development of proteinuria in AN rats. It is possible that Qufengtongluo Recipe has effects on nephrotic syndrome through altering the charge barrier in GBM in glomerulus.
2.Effect of Qufengtongluo recipe on expression of nephrin mRNA in adriamycin-induced nephropathy in rats
Yanyun REN ; Wansen SUN ; Yanlong ZHAO ; Qiaoya MA ; Zhu WANG
Journal of Central South University(Medical Sciences) 2009;34(12):1216-1223
Objective To investigate the expression of nephrin mRNA in adriamycin-induced nephropathy (AN) in rats, and to explore the effect of Qufengtongluo recipe on proteinuria in AN rats and on the expression of nephrin mRNA. Methods Adriamycin nephropathy was induced by a single tail intravenous injection of adriamycin. We randomly divided 140 rats into a normal control group (n=32) and a nephropathy model group (n=108). Three weeks later, 90 AN rats were randomly divided into 5 groups: a model group, a qufeng group, a qufeng and prednisone group, a prednisone group, and a benazepri group (18 rats in each group). They were treated respectively, and renal tissue samples were collected at week 0, 3, 5, and 7, respectively. The distribution and expression of nephrin mRNA were examined by indirect immunofluorescence and semi-quantity RT-PCR. Results In the AN rats, the diffuse fusion and effacement of foot processes were observed at week 3. The fluorescence intensity of nephrin and the expression of nephrin mRNA significantly increased in the qufeng group and the prednisone group compared with the model group at the week 7 (P<0.01).Conclusion Abnormal expression of nephrin is the important molecular mechanism that leads to the occurrence and development of proteinuria in AN rats. Qufengtongluo recipe has effect on nephrotic syndrome through altering the expression and distribution of nephrin in glomerulus.
3.The Investigative Progress of Tendon Engineering
Qing MIAO ; Yanlong QU ; Qiang WANG ; Yunlong ZHAO ; Qingquan SUN
Progress in Modern Biomedicine 2017;17(24):4794-4797
As the human population ages and the life expectancy increases,tendon injuries will become more prevalent,especially among young individuals.Though the traditional operative therapy for tendon lesion can relieve the suffering of patients,the functional reconstruction is usually not optimistic.Tissue engineering is an advancing field,as the technology of construction in vitro and application in vivo matures,that can provide a more promising approach for tendon repair without tendon autograft.Challenges and future directions in the field of tendon tissue engineering focusing on four key parameters:seed cells,novel scaffolds,and mechanical stimulation.Recently,the discovery of TDSCs (tendon-derived stem cells) provides new ideas for the selection of seed cells and effect of mechanical stimulation on the tendon tissue engineering has become a hot spot.This article provides a review of recent progress in research about seed cells,scaffolds and mechanical stimulation for tendon engineering,and also speculates on the development in the future.
4.Clinical effects of mixed baggy eyelid plasty with a new myocutaneous flap method combined middle face lifting
Qigang ZHU ; Yanlong XU ; Rong SUN ; Zhiming WANG
Chinese Journal of Medical Aesthetics and Cosmetology 2017;23(4):259-261
Objective To evaluate the postoperative effects of mixed baggy eyelid plasty with a new myocutaneous flap method combined with middle face lifting.Methods It was a retrospective study of old patients with skin and/or orbicular muscle relaxation eyelid bulging.28 patients were the control group with mixed baggy eyelid plasty with a new myocutaneous flap method only,and 32 cases were the observation group with combined middle face lift method.After six months,the condition of postoperative recovery,degree of satisfaction and complications were compared between two groups with a detailed statistical analysis.Results After six months,the total effective rate of the observation group was 96.88%,higher than the control group (92.85%).The total incidence of complications of the observation group was 3.13%,lower than the other group (7.14%).The total satisfactory rate of the observation group was 93.75%,higher than the control group (89.29%).The differences of two groups were all statistically significant (P<0.05).Conclusions The advantages of mixed baggy eyelid plasty with a new myocutaneous flap combined middle face lifting method are more effectively facial aging improved and higher satisfaction than others.
5.Experimental research of tubeimoside against herpes simplex keratitis in rabbits
Feng WANG ; Xiaohui ZHANG ; Yanlong QUAN ; Naixue SUN
Journal of Xi'an Jiaotong University(Medical Sciences) 1982;0(04):-
Objective To appraise therapeutic effects of tubeimoside on herpes simplex keratitis of rabbits. Methods HSV-1 (SM_(44) strain) is recovered on monolayers of BHK-21 cell cultures, then rabbit model of HSK was established after inoculation. After 0.2g/L Tu topically given, all eyes are examined by using slit-lamp-microscopy, and corneal samples were observed for ocular changes under transmission and scanning electromicroscope. (Results )Differences were significant in the three groups of corneal involvement scores. 0.2g/L Tu can obviously reduce corneal involvement area, and can also help to rehabilitate affected corneal epithelial cells. Conclusion Tu agent is able to cure experimental HSK to a certain degree, however, is less effective on HSK than acyclovir.
6.Effect of Touqing capsule associated with acupuncture at Fengchi on cervical spondylosis
Qibin SUN ; Zhixia TANG ; Yanlong LI ; Canjun ZHANG ; Tianbao WANG
International Journal of Traditional Chinese Medicine 2015;37(10):883-886
objective To evaluate the clinical effect of touqing capsule associated with Fengchi on the vertebral artery type of cervical spondylosis(CSA)in the attack stage.Methods A total of 100 patients with CSA, according to the doctor order, were randomly divided into a control group and a treatment group respectively, with 50 patients in each. The control group was treated with acupuncture therapy, the treatment group was additionally treated with Touqingcapsule on the basis of the control group, and both groups were treated for 20 days. The hemodynamics was detected by transcranial doppler, the change of TCM syndrome integral was observed before and after the treatment, and the clinical efficacy was evaluated.Results After treatment, the treatment group dizziness (1.10 ± 0.33 vs. 2.01 ± 0.26,t=14.909), neck shoulder ache (0.87 ± 0.16 vs. 1.92 ± 0.69,t=10.266), numbness (0.95 ± 0.14)vs. 1.87 ± 0.16,t=29.844), the total integral (2.16 ± 0.75 vs.3.89 ± 1.14,t=8.756) integral were significantly lower than the control group(P<0.01).Treatment group RVA (40.03 ± 5.89 cm/svs. 34.26 ± 6.26 cm/s,t=4.628), the LVA (42.14 ± 5.42 cm/svs.33.89 ± 6.08 cm/s,t=6.985) rise and PI (0.79 ± 0.14 vs.1.04 ± 0.19,t=7.312) reduction were significantly better than those of the control group (P<0.01). The total effective rate in the treatment group was significantly better than the control group (91.7%(44/48)vs. 74.5%(35/47),χ2=3.863, P=3.863).Conclusion Touqing Capsule associated with Fengchi is effective for CSA. Its functional mechanism is correlated with improvement of haemodynamics of vertebral-basilar artery of the CSA patients.
7.Effects of patient-related and stroke-related factors on post-stroke aphasia recovery
Yanlong ZHAO ; Zhongrui YAN ; Zuoji ZHANG ; Feng MEI ; Shuyin SUN
Chinese Journal of Behavioral Medicine and Brain Science 2016;25(7):667-670
Post-stroke aphasia is an acquired language disorder caused by stroke.It impaired the quality of life of patients and brought a heavy burden to family and the society.Unfortunately,the highly variable predictive factors make the prognosis of aphasia recovery difficult.Much of the researches indicated that the post-stroke aphasia recovery is associated with the patient-related and stroke-related factors.We searched the recent advances on the influence of patient-related factors and stroke-related factors on aphasia recovery.It showed that patient-related factors have no obvious effect on predicting aphasia recovery while the lesion (stroke)-related factors appeared close correlation with post-stroke aphasia recovery.The clinicians should pay more attention on lesion (stroke)-related factors when evaluate the outcome and give the intervention measures.
8.Establishment and evaluation of three kinds of cervical spondylosis of vertebral artery type rat model
Min SONG ; Qinglin LI ; Dingping SUN ; Yanlong GONG ; Tao LIU ; Jutang CHAI ; Wantao DONG
Journal of Xi'an Jiaotong University(Medical Sciences) 2016;37(3):455-459
Objective To compare and evaluate the methods of building model of cervical spondylosis of vertebral artery type (CSA)rats by measuring the learning and memory ability,anxiety and depression,and degree of nervous tension of three kinds of CSA model rats.Methods We randomly divided 120 rats into mixed modeling group,bone graft compression modeling group,mechanical balance disorder modeling group,and blank control group with 30 rats in each.Morris water maze,elevated plus maze test and open field test were used to detect and compare the rats’abilities of learning and memory,anxiety and depression,and degree of nervous tension.We then evaluated the three CSA rat models.Results Compared with those in the blank group,the learning and memory abilities in the mixed modeling, bone graft compression and mechanical balance disorder modeling rats were significantly decreased,the anxiety and depression and degree of nervous tension were significantly increased (P<0.05).Compared with bone graft compression and mechanical balance disorder modeling groups,the mixed modeling group could restore the characteristics of CSA.Conclusion The three kinds of modeling methods can successfully reproduce the CSA animal model;the mixed modeling is superior and thus worthy of promotion.
9.Determination of Eight Typical Lipophilic Algae Toxins in Particles Suspended in Seawater by Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry
Yanlong WANG ; Junhui CHEN ; Liyuan GAO ; Shuai WANG ; Xiaoling ZHENG ; Chengjun SUN ; Xiaoru WANG
Chinese Journal of Analytical Chemistry 2016;(3):335-341
The particles suspended in seawater have great influence on pollutant migration and transformation in marine environment, while the lipophilic algae toxins enriched by the particles suspended in seawater will lead more serious toxicity to marine filter feeders. In this study, a new method was developed for the simultaneous determination of eight lipophilic algae toxins in suspended particles by ultra performance liquid chromatography-tandem mass spectrometry ( UPLC-MS/MS ) . After extracted with methanol by ultrasonic-assisted extraction, the sample was separated on an Acquity UPLC BEH C18 column (50 mm×2. 1 mm, 1. 7 μm) using gradient elution of acetonitrile and water containing 5 mmol/L ammonium acetate as eluent modifiers. The qualitative and quantitative analyses were carried out by electrospray ionization ( ESI) tandem mass spectrometry in multiple reaction monitoring ( MRM) mode. Under the optimal conditions, satisfactory precision (relative standard deviations (RSD≤14. 1%), recoveries (83. 8%-110. 4%) and detection limits (2. 9-103 pg/g) of the method were achieved. Good linearity (R2≥0. 99) was also obtained for all studied analytes. Then, the method was applied to determine the amounts of the eight lipophilic marine toxins in authentic suspended particle samples collected from Qingdao near-shore area. Pectenotoxin 2 ( PTX2 ) was detected in the samples from Shilaoren beach and No. 3 bathing beach with concentration ranges of 717 and 790 pg/g, respectively.
10.Study on immunogenicity of recombinant lentivirus expressing trimeric HA of swine H1 N1 influenza virus
Yingqi DENG ; Junfeng LI ; Hui QU ; Yubo TANG ; Yixue SUN ; Xin LI ; Weili WANG ; Zhuang DING ; Yanlong CONG
Chinese Journal of Immunology 2016;32(7):983-987
Objective:To evaluate the protective immunity by vaccination of BALB/c mice with rLV-HA-GCN4,a recombinant lentivirus expressing the trimeric HA of swine H1N1 influenza virus. Methods:The female mice were randomly divided into rLV-HA-GCN4,rLV-HA,LV and PBS groups. Mice were primed with plasmid and boosted with lentivirus by the administration of intramuscular thigh injections at an interval of two weeks. At day 28 post-prime immunization,mice were inoculated intranasally with 100TCID50 of swine H1N1 influenza virus in a 50 μl volume. The immune levels were assessed by the T lymphocyte transformation test, flow cytometry,indirect ELISA and the indexes of spleen and lung. Results:The spleen lymphocyte transformation rate was 0. 3±0. 11 in the rLV-HA-GCN4 group at day 14 post-boost immunization, showing a statistical significance ( P<0. 01 ) compared to the PBS group. Meanwhile,rLV-HA-GCN4 could cause T lymphocyte response mainly based on the Th1-type CD4+ T cells. The IgG antibody titer reached to 1:8 000 at day 14 post-boost immunization and approximately 1:7 000 at day 14 post challenge. After challenge,the spleen and lung indexes of rLV-HA-GCN4 group were significantly lower than those of PBS group (P<0. 05). The body weight of rLV-HA-GCN4 group demonstrated a slight decrease before 3 days post challenge and then a gradual increase compared to the LV and PBS groups (P<0. 05). Conclusion:rLV-HA-GCN4 can effectively induce cellular and humoral immune response in BALB/c mice against swine H1N1 influenza virus.