1.The role of dopamine transporter in psychostimulant dependence
Guangxiao WU ; Ruibin SU ; Jin LI
Chinese Pharmacological Bulletin 2010;26(2):141-143
Psychostimulant is a type of psychoactive substances that stimulate central and peripheral nervous system as well as induce drug dependence.A series of studies indicate that monoamine especially dopamine plays an important role in behavior and drug dependence,moreover,dopamine transporter(DAT)controls homeostasis of dopamine in neuron and transmission of dopamine pathways.Thus DAT might play an important role in the reward and behavioral stimulation of psychostimulant.
2.Clinical observation on the treatment of cervical vertigo due to atlantoaxial joint disorder with manipulation
Ruibin WU ; Wei WANG ; Zhenshu LIN
International Journal of Traditional Chinese Medicine 2015;(1):40-43
Objective To study the clinical effect of manipulation in the treatment of cervical vertigo due to atlantoaxial joint disorder. Methods A total of 86 patients in our hospital from year of July, 2010 to 2014, with cervical vertigo due to atlantoaxial joint disorder were divided into a control group and a treatment group randomly, with 43 patients in each group. The control group was treated by intravenous dripping of betahistine hydrochloride sodium chloride injection, while the treatment group was additionally treated by manipulation on the basis of the control group. The efficacy and symptoms changes together with average blood flow rate of LVA, RVA, BA, and the value of ADI, VBLADI, and DO were compared between the two groups after one week of the treatment. Results After the treatment, the improvement of vertigo and symptoms of the treatment group was between than the control group(t=12.655, P<0.05); the value of ADI and VBLADI decreased lower in the treatment group than the control group (t were 2.888 and 5.334 respectively, P<0.05);Vm of RVA, LVA and BA increased higher in the treatment group than the control group (t were 4.710, 3.534 and 5.335 respectively, P<0.01). Conclusions Manipulation combined with intravenous dripping of betahistine hydrochloride sodium chloride injection is effective in improving vertigo, decreasing ADI and VBLADI, and correcting atlantoaxial joint disorder.
3.Agmatine inhibits formalin-induced protein kinase C gamma,phosphorylated cAMP response element binding protein,c-Fos and c-Jun up-regulation in the spinal dorsal horn
Xiaohui QIN ; Ning WU ; Ruibin SU ; Hong ZHANG ; Jin LI
Chinese Pharmacological Bulletin 1986;0(04):-
Aim To investigate the changes in the expression of protein kinase C gamma (PKC?), phosphorylated cAMP response element binding protein(pCREB)and immediate-early gene(c-fos and c-jun) in the spinal cord in formalin-induced inflammatory pain and study the effect of agmatine on the changes of PKC? activation, phosphorylation of CREB and expression of c-fos and c-jun.Methods Rats were decapitated at 10, 20 min or 2 h after intraplantar injection of 50 ?l 5% formalin and L_4, 5 spinal cords were dissected. Immunohistochemistry and western blotting analyses were used to observe the expression of PKC?, pCREB, c-fos and c-jun in the spinal dorsal horn and the effect of agmatine on the changes of their expression. Results Unilateral peripheral inflammation induced PKC? activation and CREB phosphorylation bilaterally while c-fos and c-jun expression ipsilaterally in rat spinal cord. PKC activity increased in membrane fractions with unchanged levels in the cytosolic fractions. Pretreatment intraperitoneally with 160 mg?kg-1 agmatine 15 min before inflammation significantly inhibited the activation of PKC? in the membrane fraction, suppressed the phosphorylation of CREB and the expression of c-fos and c-jun. Conclusion The mechanism of the analgesic effect of agmatine may be associated with inhibiting PKC? activation in the plasma membrane, CREB phosphorylation, c-fos and c-jun up-regulation which play roles in the hyperalgesia with peripheral inflammation.
4.Expression of soluble PD-1 in the sera of patients with recurrent genital herpes and its immunologic significance
Jian WU ; Guoquan JIA ; Ruibin WU ; Ping XU ; Yongjing CHEN ; Minzhi WU ; Yicheng ZHANG ; Xueguang ZHANG
Chinese Journal of Dermatology 2011;44(5):360-361
Objective To determine the concentration of soluble PD-1 (sPD-1) in the sera of patients with recurrent genital herpes (RCH), and to explore the significance of abnormal expression of sPD-1 in RCH. Methods Serum samples were obtained from 88 healthy blood donors, 74 patients with RCH including 34 cases of outbreak-stage RCH and 40 cases of stable-stage RCH. The serum level of sPD-1 was measured by monoclonal antibody labeling and enzyme linked immunosorbent assay (ELISA). Results A significant difference was observed in the serum level of sPD-1 between the patients with RGH and the blood donors (33.06 ± 17.5 μg/L vs. 53.07 ± 26.3μg/L, P < 0.01) and between the patients with outbreak-stage RGH and those with stable-stage RGH (27.47 ± 12.9 μg/L vs. 37.71 ± 19.6 μg/L, P< 0.01). Conclusions There is a low expression of sPD-1 in patients with RGH, which may be one of the mechanisms underlying the escape of HSV- Ⅱ from immunologic surveillance and development of immunological tolerance.
5.Gait and Surface Electromyogram Characteristics in Underwater Treadmill Training
Qiong WU ; Tong ZHANG ; Fang CONG ; Yu PAN ; Ruibin WU ; Tiejun ZHAO
Chinese Journal of Rehabilitation Theory and Practice 2017;23(1):63-67
Objective To explore the characteristics of gait and surface electromyography (sEMG) of underwater treadmill training (UWTT). Methods From January to September, 2015, gait and sEMG parameters of ten healthy adults were synchronously collected using three-dimensional gait analysis system and sEMG systems on land and UWTT. Results When walking in self comfortable speed, compared with walk on land, there was significant increase in gait cycle (t=-11.411, P<0.001) and percentage of the swing phase (t=-5.252, P<0.05), significant reduction in walking speed (Z=-2.803, P<0.01) and step frequency (t=7.421, P<0.001). There was no significant difference in step strength (Z=-0.357, P>0.05). The integral electromyography of biceps femoris, gastrocnemius, tibialis anterior muscle were significant less than iEMG on land (t>3.984, P<0.01), but no significant difference of rectus femoris (t=0.054, P>0.05). Conclusion There are signifi-cant differences in gait and muscle contraction intensity between land walking and UWTT. The dynamic physiology and neural control of UWTT need further study.
6.T cell and CD4+ CD28-T cell changes in the occurrence of rat abdominal aortic aneurysm
Wenping XU ; Zhiquan XIE ; Zhiliang LI ; Jian QIU ; Ziqiang WU ; Ruibin FU
Chinese Journal of General Surgery 2013;(4):296-299
Objective To evaluate T cell and CD4+ CD28-T in the development and progression of abdominal aortic aneurysms (AAAs).Methods Fifty Wistar rats were randomly divided into 5 groups (n =10 each).An AAA animal model is established by enhancing perfusing elastase to the infrarenal abdominal aorta of the rats.The levels of T cell,B cell and macrophage cell of abdominal aorta of the rats on days 3,7,14 and 28,were detected by enzyme linked immunosorbent assay(ELISA).CD4+ CD28-T cell of the peripheral blood were measured by flow cytometry.Result There was significant T-lymphocyte infiltration both in middle and outer membrane of the artery of the rats on day 7 after surgery.T-lymphocyte,B-lymphocyte and macrophage cell infiltration were on the peak in middle and outer membrane of the artery on day 14 after surgery.The ratio of CD4+ CD28-T cell in rat peripheral blood reached peak on day 7(P <0.05).Conclusions T cell and CD4+ CD28-T cell expression increased in peripheral blood and abdominal aorta in AAA rat model,suggesting a potential role of T cell and CD4+ CD28-T cells in the pathogenesis of AAAs,especially during the early development of AAAs.
7.Effects of Y-IP5 on morphine-induced behaviorals ensitization and conditioned place preference in mice
Yuefang XU ; Ruibin SU ; Rifang YANG ; Ning WU ; Xinqiang LU ; Jin LI
Chinese Pharmacological Bulletin 2009;25(12):1578-1583
Aim To investigate the effects of Y-IP5 on morphine-induced behavioral sensitization and CPP in mice.Methods Locomotor activity was detected after Y-IP5 administration or co-administration of Y-IP5 with morphine in mice.Mice were treated with morphine to induce behavioral sensitization. Then the effects of Y-IP5 on the development, transfer and expression of morphine-induced behavioral sensitization were investigated. Mice were treated with morphine to induce CPP. Then the effect of Y-IP5 on the acquisition of morphine-induced CPP was studied.Results Y-IP5 itself didn′t influence locomotor activity of mice.Co-administration of Y-IP5 with morphine inhibited morphine-induced hyperactivity (P<0.05) and the development of morphine-induced behavioral sensitization in mice (P<0.05), however, did not influence the transfer and expression of morphine-induced behavioral sensitization.Co-administration of Y-IP5 with morphine also inhibited the acquisition of morphine-induced CPP (P<0.05).Conclusion Y-IP5 may inhibit the psychological dependence induced by morphine.
8.The analgesic effect of agmatine on inflammatory pain and its influence on the analgesic effect of morphine
Xiaohui QIN ; Ruibin SU ; Ning WU ; Xiaoli WEI ; Hong ZHANG ; Jin LI
Chinese Pharmacological Bulletin 2003;0(09):-
Aim To evaluate the analgesic effect of agmatine on inflammatory pain and its influence on the analgesic effect of morphine. To investigate whether the mechanism of analgesic effect of agmatine is related to activation of imidazoline receptor or to affect the release of endogenous glutamate and gamma-aminobutyric acid (GABA) from rat spinal cord slices. Methods The formalin test in rats was used as a long-lasting inflammatory pain model. Effects of agmatine on basal and K+ evoked release of endogenous glutamate and GABA from rat spinal cord slices were determined by high performance liquid chromatography (HPLC). Results Pretreatment with agmatine (ip or sc) inhibited the second phase of the nociceptive response of rats and potentiated the analgesic effect of morphine in phase 2, but not in phase 1. Idazoxan did not attenuate the analgesic effect of agmatine. Agmatine (1, 10, 100, 1000 ?mol?L -1 ) had no effect on the basal release of glutamate and GABA from spinal cord slices, nor did it affect the K+ (50 mmol?L -1 ) evoked release of glutamate and GABA contents. Conclusions Agmatine has an analgesic effect and enhances morphine analgesia in the second but not the first phase of formalin-induced nociception. Its analgesic effect does not likely involve imidazoline receptor. The mechanism of the analgesic effect of agmatine may not be associated with inhibiting glutamate release nor increasing the GABA content.
9.Development of a wrist wearing and remote heart rate alarm apparatus.
Ruibin ZHAO ; Yanjun MENG ; Wei ZHANG ; Yanru WU ; Jingjing ZHANG ; Zhenzhong FAN
Journal of Biomedical Engineering 2013;30(2):292-295
We have developed a new wrist wearing heart rate monitoring alarm apparatus, which can detect the patients' real-time pulse waves. When the abnormal heart rate appears or pulse disappears, the monitoring alarm will sound and dial the remote telephone for help simultaneously. This apparatus uses the switch circuit to control the keyboard of mobile phone, and dials remote telephone in the help of mature technology and communication platform of mobile phones. The intelligent program can distinguish digital pulse signal, pick out the correct cycle of heartbeat intelligently. The new wrist wearing heart rate monitoring alarm apparatus will calculate an average heart rate when it captures consecutively five correct electrocardiograph waveforms. It really provides a simple, inexpensive and effective way for the patients with heart disease.
Automation
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Equipment Design
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Heart Rate
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physiology
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Humans
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Monitoring, Physiologic
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instrumentation
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methods
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Pulse
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Remote Sensing Technology
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instrumentation
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methods
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Signal Processing, Computer-Assisted
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Telemetry
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instrumentation
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methods
10.A case of acral fibrochondromyxoid tumor
Lijun DENG ; Guanting LIN ; Juan WANG ; Zhenzhong LU ; Ruibin WU
Chinese Journal of Dermatology 2022;55(10):900-902
A 44-year-old male patient presented with a subcutaneous nodule in the left little finger for 3 years. Skin examination showed a subcutaneous nodule with rubber-like hardness but no tenderness on palpation, measuring 0.4 cm × 0.4 cm in size at the dorsal distal aspect of the left little finger, and the movement of the distal interphalangeal joint was unrestricted. Postoperative histopathological examination revealed that the tumor contained abundant stroma consisting of variable fiberous, chondroid and myxoid materials; tumor cells were oval to short spindle-shaped with inconspicuous nucleoli but no mitosis; cells were arranged haphazardly or in small clusters. Immunohistochemical study showed positive staining for vimentin, CD34 and transcription factors ERG and SOX9, but negative staining for S100, P63, broad-spectrum cytokeratin AE1/AE3, epithelial membrane antigen, smooth muscle actin and desmin in tumor cells, and the Ki67 labeling index was below 1%. Finally, the patient was diagnosed with acral fibrochondromyxoid tumor.