1.Significance of detection of anti-SmD1 antibody in systemic lupus erythematosus
Chinese Journal of Rheumatology 2003;0(07):-
Objective To investigate the significance of anti-SmD1 antibody and other auto-antibod- ies in systemic lupus erythematosus(SLE).Methods Forty-four SLE patients and 136 other rheumatic dis- eases patients were studied.The later group included Sj(?)gren's syndrome,undifferentiated connective tissue disease,ankylosing spondylitis,and rheumatoid arthritis.Immunoblotting was used to measure,the anti-SmD1 antibody,ANuA and anti-SSA60 000 antibody.ANA and anti-dsDNA were detected by indirect immunofluo- rescence,immunodotting was used to measure the anti-Sin antibody.Results The seropositive rate of anti- StuD1 was 47.7% in SLE patients.It was much higher than that of anti-Sm(P
2.Arthroscopic reduction and fixation of avulsion fracture of the posterior cruciate ligament from the tibia through an additional posterolateral portal
Yong HU ; Shiming ZHANG ; Yi LIANG
Chinese Journal of Minimally Invasive Surgery 2005;0(07):-
Objective To investigate surgical techniques and results of arthroscopic reduction and fixation for the treatment of avulsion fracture of the posterior cruciate ligament from the tibia through an additional posterolateral portal. Methods An additional posterolateral portal was established by using the inside-out technique under arthroscopic view.After a protective sleeve was placed through the portal and the displaced fracture was reduced,the fragment was fixed by the guide wire drilled through the sleeve temporarily.If the fluoroscopic control showed an anatomic reduction of the fragment and good placement of the wire,the self-attacked cannulated screw and washer was placed intra-articularly over the guide wire through the sleeve for the directive internal fixation of the avulsion fracture.Aggressive rehabilitation programs were recommended postoperatively.Results Except 1 case with 11 mm displacement and rotation of the fragment treated by the arthrotomy after the failure of arthroscopic reduction,the arthroscopic operation was accomplished in all the remaining 10 cases.The operative time was 63~98 min(mean,87.3 min).No injuries of popliteal vessels or nerves occurred.The postoperative X-ray firms showed an anatomic reduction of the fragment and good placement of the screw and washer.With the negative posterior drawer test confirmed by the physical examination,normal range of motion of the injured knee joint and gait were achieved in the 10 patients at 4~7 weeks after surgery.The bone union was confirmed by X-ray films at the 3 months postoperatively.The computer KT-2000 arthrometer measurements of posterior tibial displacement of both knee joints showed side-to-side difference not more than 1.2 mm in 6 patients at 5 months after surgery.Conclusions The additional posterolateral portal can be established by the arthroscopic inside-out technique safely.The displaced fragment of the avulsion fracture of the posterior cruciate ligament from the tibia can be reduced and fixed with the self-attacked cannulated screw and washer arthroscopicly.
3.Role of mitochondrial quality control in exercise-induced health adaptation.
Hu DING ; Zi-Yi ZHANG ; Jing-Wen ZHANG ; Yong ZHANG
Chinese Journal of Applied Physiology 2013;29(6):543-553
Long-term endurance training or physical activity has been confirmed not only to improve physical performance, but to bring about an obvious beneficial effect on human health; however, the mechanism of this effect is not clear. The most studied health adaptations in skeletal muscle response to endurance exercise are increased muscle glycogen level and insulin sensitivity, fiber type transformation toward oxidative myofibers, and increased mitochondrial content/function. Mitochondria are dynamic organelles in eukaryotic cells critical in physical performance and disease occurrence. The mitochondrial life cycle spans biogenesis, maintenance, and clearance. Exercise training may promote each of these processes and confer positive impacts on skeletal muscle contractile and metabolic functions. This review focused on the regulation of these processes by endurance exercise and discussed its potential benefits in health and disease. We presented evidence suggesting that exercise training potentiates not only the biogenesis of mitochondria but also the removal of old and unhealthy mitochondria through mitochondrial quality control.
Adaptation, Physiological
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Exercise
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Humans
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Mitochondria
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physiology
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Muscle Contraction
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Muscle, Skeletal
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physiology
4.Analysis on the infection status of soil-transmitted nematodes in Shanxi Province in 2006
Yongtao HUO ; Yong DENG ; Huanpeng ZHANG ; Junying QIAN ; Yi ZHANG
Chinese Journal of Disease Control & Prevention 2009;0(01):-
Objective To analyze the distribution status of soil-transmitted nematodes infection for prevention and treatment.Methods The inquiry field test and grade random sampling were emplyed on a group of people naturally selected in Shanxi Province.The people were examined through pathogen test and statistical diagnosis.Results A total of 7 726 people were investigated.Soil-transmitted nematodes infection rate was 18.86%.Ascaris,enterobius,trichuris,and hookworm was 15.87%,11.46%,0.82%,and 0.04% respectively.The intensity of ascaris infection was 97.74%,1.60%,and 0.66% respectively in light,moderate,and serious conditions,and that of trichuris infection was 88.89%,7.41%,and 3.70% respectively in light,moderate,and serious conditions.Conclusions Soil-transmitted nematodes infection rate is lower than that in 1992.Its cases are mainly distributed in rural areas and schools,closely related to education level.Improving water-drinking conditions and personal hygiene is still key to the prevention and control of the infections.
5.Advances of chemical constituents and pharmacological activities of Myristica genus.
Yong ZHANG ; Juan-Juan ZHANG ; Wen-Yi KANG ; Wen-Yi YAN
China Journal of Chinese Materia Medica 2014;39(13):2438-2449
The genus Myristica (Myristicaceae) consists of 120 species, which were distributed in South Asia, from west Polynesia, Oceania, eastern India to the Philippines. Phytochemical studies showed that 164 compounds including a majority of lignans, along with phenglpropanoids, flavonoids and phenolics, have been isolated from this genus, which exhibited anti-microbial, anti-inflammatory, anticancer, hyperglycemic and hepatic protective activities. This article summarizes research progress of the chemical compositions and their pharmacological activities from this genus, which could provide reference for the in-depth development and utilization of the Myristica plants.
Animals
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Drug Therapy
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Drugs, Chinese Herbal
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chemistry
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pharmacology
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Humans
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Myristicaceae
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chemistry
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Plants, Medicinal
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chemistry
6.Drug Release Comparison of Nifedipine Sustained-release Tablets from Four Manufacturers
Yi WANG ; Changjuan ZHAN ; Wei XU ; Hua WANG ; Yong ZHANG
China Pharmacist 2014;(11):1856-1858
Objective:To compare the drug release of nifedipine sustained-release tablets from four manufacturers to evaluate the intrinsic quality. Methods:The drug release rate was determined by UV respectively with pH 1. 2 HCl solution, pH 4. 0 sodium ace-tate buffer, pH 6. 8 phosphate buffer and water as the dissolution medium. The dissolution curves were compared by f2 factor. Results:The drug release rate of nifedipine sustained-release tablets from the four manufacturers all met quality standard of our country, al-though the dissolution curves in the different dissolution medium was various. Conclusion:There are differences in intrinsic quality a-mong the nifedipine sustained-release tablets from the four manufacturers. The dissolution examination standard should be improved fur-ther.
8.A cross-lagged regression analysis between resilience, mental health and psychological stress of recruits during training
Yi MIAO ; Min LI ; Yong LAN ; Yupei ZHANG ; Bo CHEN
Chinese Journal of Behavioral Medicine and Brain Science 2012;21(1):59-62
ObjectiveTo explore the resilience and mental health of recruits during training,and to investigate mutual prediction of resilience between mental health and psychological stress to provide the scientific evidence for the mental health training and psychological selection of recruits.MethodsConnor-Davidson resilience questionnaire ( CD-RISC),symptom checklist ( SCL-90 ),psychological stress self-evaluation test ( PSET),satisfaction with life scale (SWLS),positive and negative affect scale (PANAS) were applied to 650 recruits in 2011 before starting training and after two months of training.Results ① Chinese recruits had good resilience,and the CD scores of pre-and post-test were (61.60 ± 14.36) and (61.41 ± 14.55 ) respectively.②Mental health (SCL-90) of two tests were good in recruits.③ Correlation analysis showed that the same premise of phase correlation,resilience (pre-test) could significantly predict mental health (post-test) ( β =0.070,P < 0.05 ),mental health ( pretest) could not predict resilience (post-test) (β =0.015,P > 0.05 ).Resilience (pre-test) could significantly predict psychological stress (post-test) ( β =0.075,P < 0.05 ),psychological stress (pre-test) could not predict resilience (post-test) (β =0.017,P > 0.05 ).④ Compared with high resilience group,low-resilience group of recruits had higher total score of SCL-90 and psychological stress and less positive emotion,more negative emotion and lower life satisfaction.ConclusionThe recruits training have good resilience.Resilience of recruits have predictive ability to mental health,psychological stress during training.
9.Erk activation and proliferation in osteoarthritc chondrocytes after continuous passive motion
Yi HU ; Yunping REN ; Yong ZHANG ; Daohai XIONG
Chinese Journal of Tissue Engineering Research 2016;20(42):6265-6270
BACKGROUND:Whether continuous passive motion improves osteoarthritis by enhancing the proliferation ability of chondrocytes is rarely reported.
OBJECTIVE:To analyze the therapeutic outcomes of continuous passive motion in rabbits with osteoarthritis and the underlying mechanism.
METHODS:Thirty-six New Zealand white rabbits were randomly al otted into three groups (n=12 per group). Rabbits in control group only underwent capsulotomy with no harm to the cartilage;osteoarthritis models were established in the rabbits of model and treatment groups using Hulth method. At 1 day after modeling, the treatment group rabbits were treated with continuous passive motion, 8 hours daily for consecutive 8 weeks. Interleukin-1 and tumor necrosis factorαlevels in the synovial fluid were detected by ELISA;col agen type II expression and the proliferation ability of chondrocytes were detected by MTT assay;Erk signaling pathway activation was determined using western blot assay.
RESULTS AND CONCLUSION:In the model group, interleukin-1 and tumor necrosis factorαlevels in the synovial fluid were significantly increased, and the expression level of col agen type II mRNA was remarkablely down-regulated. Continuous passive motion significantly downregulated interleukin-1 and tumor necrosis factorαlevels and up-regulated the col agen type II mRNA level (P<0.01). The model group showed significantly decreased proliferation ability of chondrocytes and down-regulated Erk signaling pathway activation, while after continuous passive motion, al above indicators were significantly improved (P<0.01). These results indicate that the continuous passive motion can al eviate osteoarthritis probably by influencing interleukin-1 and tumor necrosis factorαlevels, proliferation ability of chondrocytes, and col agen type II expression, as wel as regulating Erk signaling pathway activation.
10.The effect of cinobufacin combined with 5-FU on inhibiting proliferation and inducting apoptosis of human gastric carcinoma cells
Hongbin HAN ; Jiayong CHEN ; Yong YUAN ; Daoming LIANG ; Yi ZHANG
Chinese Journal of General Surgery 2001;0(09):-
Objective To study the effects of cinobufacin(cino) combined with fluorouracil(5-FU) on inhibiting proliferation and inducing apoptosis of human gastric carcinoma cells in vitro. Methods The experiment was divided into control group,cinobufacin group,5-FU group and cino+5-FU group. Cell morphological variation,cell inhibitory rate, cell cycle and ratio of apoptotic cell of human gastric carcinoma cell line BGC-823 were studied by cell culture, inverse microscopy, fluoroscopy, MTT assay and flow cytometry on different concentrations of cino and 5-FU. Results Cino could markably inhibit proliferation of human gastric carcinoma cells in time-and dose-dependent response. The cino+5-FU group inhibited the rate of proliferation of BGC-823 cells was significantly more than either cino or 5-FU alone group(P