1.Modern Research Progress of Relationship between Heart and Emotion Xu Y a1, Li Pengtao2
World Science and Technology-Modernization of Traditional Chinese Medicine 2013;(6):1451-1455
Heart dominating mind is one of the main contents in the visceral manifestation theory of tradi-tional Chinese medicine ( TCM ) theory . This article summed up documents , clinical studies , basic experimental studies , and modern scientific researches to review the research results of the relationship between heart and emotion . The connotation of heart dominating mind theory in modern biology was interpreted . And the scien-tificity of TCM theory was explained .
2.Sequestration of remifentanil by the extracorporeal circuit
Pengtao LIN ; Wei CAO ; Jian LI
Chinese Journal of Anesthesiology 2010;30(4):396-398
Objective To assess the possible sequestration of remifentanil by the extracorporeal circuit.Methods Two types of extracorporeal circuits (ECCs) were used-Xijian type I (group A)and AFFINITY(R) NT(group B),while in control group (group C) a glass container was used.The ECC and glass container were filled with priming solution (6%hydroxyethyl starch 1000 ml + lactated Ringer's solution 500 ml).Remifentanil Wag then added to the priming solution with the final concentration of 100 ng/ml.The priming solution was circulated in the closed ECC or stirred the glass container.The concentration of remifentanil in the priming solution was determined at 2,5,10 and 15 min after addition of remifentanil.Results The remifentanil concentration in the priming solution decreased by 75.1%,57.9% and 18.3%at 2 min after addition of the drug in group A,B and C respectively as compared with the baseline value.The remifentanil absorption by ECC was significantly greater in group A than in group B.There was no significant difference in remifentanil concentration at the 4 time points in each group.Conclusion ECC can absorb remifentanil.The remifentanil absorption by Xijian type I is significantly greater than that by AFFINITY(R).
3.Protective Effect of Tanreqing Injection on the Mice Infected with Influenza Virus FM_1
Jinsu ZHENG ; Ligang GU ; Pengtao LI
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(12):-
Objective To investigate the protective effect of Tanreqing injection on the mice infected with influenza virus FM 1 . Methods The experiment includes protection of Tanreqing injection to the mice infected with influenza virus FM1, and effect of Tanreqing injection to the viral titers, pathology and lung index of mice with influenza virus FM 1 . Results Tanreqing injection can reduce the mortality of the mice with influenza virus FM 1 infected. And Tanreqing injection can improve viral titers, pathology, and lung index of the mice infected with influenza virus FM1. Conclusions Tanreqing injection can protect the mice infected with influenza virus FM 1 by resisting the influenza virus and meliorating the lung pathology of the mice infected with influenza virus FM 1 .
4.Protective effects of IGF-1 on neurons under condition of hypoxia and the role of PI3K signal pathway
Yibo TANG ; Wei ZHANG ; Huiling TANG ; Pengtao LI
Journal of Central South University(Medical Sciences) 2011;36(1):21-26
Objective To investigate the protective effects of insulin like growth factor 1(IGF-1) on cortical neurons under condition of hypoxia and the possible mechanism. Methods Cerebral cortical neurons from newborn rats were cultured under the condition of oxygen and glucose deprivation (OGD) . On day 7, neurons were treated with IGF-1 or IGF-1 plus LY294002 or PD98059 under condition of OGD or normal condition. MTT assay was used to analyze the viability of neurons in each group. The expression of total Akt and p-Akt were analyzed by Western blot. Results Compared with the control, the neuron viability was significantly higher in IGF-1 treated group under normal or OGD condition (P<0.05). The protective effects of IGF-1 were attenuated in the presence of LY294002 but not PD98059. The result of Western blot showed IGF-1 upregulated the expression of p-Akt, which was inhibited by LY294002. Conclusion PI3K pathway may play an important role in neuroprotection afforded by IGF-1.
5.Effect of ulinastatin on tumor necrosis factor and interleukin-6 in rats with radiation-induced lung injury
Pengtao BAO ; Haowen QI ; Wei GAO ; Shujun LI ; Lijiang ZHANG
Chinese Journal of Radiological Medicine and Protection 2009;29(2):154-157
Objective To observe the effect of ulinastatin on tumor necrosis factor(TNF-α)and interleukin-6(IL-6)in radiation-induced lung injury.Methods Severity-two female SD rats were randomly divided into 3 groups as control group,irradiation group and treatment group(administered with Ulinastatin).Rats in irradiation group and treatment group were irradiated with linear accelerator at a single dose of 25 Gy.After irradiation rats in treatment group were injected daily with ulinastatin at a dose of 100000 U-kg-1·d-1 for 7 days through caudal vein while rats in control group and irradiation group were injected with the same volume of saline.Rats were killed at 2 h,4,8 and 24 weeks.Samples of lung tissues were observed by using HE staining.Expression of TNF-α in lung was determined by Western blot and expression of IL-6 in serum was determined by ELISA.Data were analyzed by SPSS software.Results Expressions of TNF-α in lung and IL-6 in serum increased significantly after irradiated in irradiation group compared with control group,and it reached the peak at 4 weeks(q=5.63、6.21,P<0.01).Though expressions of TNF-α and IL-6 in ffeatment group also increased compared with control group,the difference between irradiation group and treatment group was statistic significantly(q=4.97、7.42,P<0.01).Conclusions TNF-α and IL-6 play an important role in radiation-induced lung injury.Ulinastatin could suppress the inflammatory response and radiation-induced lung injury effectively by decreasing the levels of TNF-α and IL-6.
6.Effect of remifentanil on systemic vascular resistance in patients undergoing cardiopulmonary bypass
Pengtao LIN ; Wei WEI ; Jian LI ; Jin LIU
Chinese Journal of Anesthesiology 2010;30(z1):9-12
Objective To investigate the mechanism by which remifentanil decreases blood pressure during cardiopulmonary bypass (CPB).Methode Twenty-six ASA Ⅱ or Ⅲ patients (NYHA's classification grade Ⅱ or Ⅲ ) of both sexes and aged 20-55 years were randomized to receive remifentanil (group R, n = 13) or normal saline (group C, n = 13). Remifentanil 10 μg/kg or equal volume of normal saline was administered via a venous reservoir when cardiac arrest was induced with cardioplegic solution. The flow rate resistance (SVR) were measured and arterial blood samples were taken for determination of plasma concentrations of histamine,nitric oxide (NO) and 6-keta-prostaglandin F1α(PGF1α) before T0 and at 5, 10, 15 min (T5.10.15) after remifentanil administration.Results Remifentanil administration was associated with a significant decrease in MAP and SVR at T5 and T10 as compared with the baseline values at T0 ( P < 0.05); whereas in control group, MAP and SVR were significantly increased at T5, T10 and T15 as compared with the baseline values at T0 . There were no significant differences in plasma histamine, NO and PGF1α concentrations between the two groups.Conclusion Remifentanil reduces SVR and causes a decrease in BP but without altering plasma concentrations of histamine, NO or PGl2.
7.The changes of respiratory muscle strength by traditional Chinese medicine combined with cholinesterase inhibitors in myasthenia gravis patients
Yi ZHOU ; Weiguo ZHAO ; Shaohua LI ; Pengtao BAO ; Bing CHEN
Clinical Medicine of China 2010;26(5):503-506
Objective To observe the changes of respiratory musc]e strength by traditional Chinese medicine combined with cholinesterase inhibitors in myasthenia gravis (MG) patients.Methods Thirty-four cholinesterase inhibitor-resistant patients,of them 14 were MG patients with stage Ⅰ ,and 20 were stage Ⅱ ,were treated with bromide dimethylcarbamate ( 360-480 mg/d ).Traditional Chinese potion were administered in those without effectiveness,and the dosages of bromide dimethylcarbamate decreased with Traditional Chinese potion lasting for 4-6 months.Vital capacity ( VC ),maximal voluntary ventilation ( MVV ),maximal inspiratory pressure ( PIM ),maximal expiratory pressure ( PEM ),respiratory centre driving pressure ( P0.1 ),residual volume ( RV )were measured before and after treatment.Results The amelioration of VC,MVV,PIM,PEM,P0.1 ,RV,respiratory muscle strength and other indicators of 34 MG patients were not obviously after treatment with cholinesterase inhibitor alone ( P > 0.05 ).After treatment with traditional Chinese medicine combined with cholinesterase inhibitors,VC,MVV,PIM,PEM ( before treatment:76.66% ± 18.59%,68.03 % ± 10.45 %,43.25 % ± 18.16%,21.75 % ±14.44% ) increased significantly in all 34 MG patients( after treatment:86.91% ± 14.87% ,75.11% ± 11.17%,52.66% ±20.32% ,28.56% ± 10.06% ) ( P < 0.05).RV decreased from 164.94% ± 67.97% to 143.16% ±79.21% (P <0.01 ),and respiratory muscle strength,endurance and other indicators significantly improved (P <0.01).PIM(65.80% ±28.03% to 52.66% ±20.32%),and PEM (37.03% ±20.57% to 28.56% ±10.06%)improved more significantly in group stage than in group stage (P <0.01 ).Respiratory muscle endurance in stage Ⅰpatients ( 108.71% ± 17.56% ) improved significantly than stage Ⅱ patients (96.01% ± 14.12% ,P < 0.01 ).Conclusions Traditional Chinese medicine combined with cholinesterase inhibitors could effectively improve the lung function and respiratory muscle strength in patients with resistance of the cholinesterase inhibitors.The improvement of lung function,respiratory muscle strength were more obviously in stage Ⅰ patients than in stage Ⅱ patients.Respiratory muscle strength and endurance were improved greater in stage Ⅱ than in stage Ⅰ patients.
8.Pathological changes of brain tissue in a rat model with coexistence of hyperlipidemia and cerebral ischemia
Zhenqiang ZHANG ; Junying SONG ; Yaquan JIA ; Pengtao LI ; Yanshu PAN
Chinese Journal of Tissue Engineering Research 2013;(33):5981-5987
BACKGROUND:Cerebral ischemia often occurs in underlying pathological conditions, such as hypertension,
hyperlipidemia and diabetes. Therefore, it is of great significance to construct a cerebral ischemia rat model with hyperlipidemia and to study the effect of basic pathological changes on the cerebral ischemia.
OBJECTIVE:To observe the brain tissue pathological changes of rat models with coexistence of hyperlipidemia and cerebral ischemia, and the effect of hyperlipidmia on cerebral ischemia.
METHODS:The rats were fed with high-fat diet to establish the hyperlipidmia models, and then focal cerebral
ischemia models were prepared with suture method. At 3 and 7 days after modeling, the 2,3,5-triphenyltetrazolium chloride staining was used to observe the volume of brain tissue ischemia, and hematoxylin-eosin staining was
performed to observe pathological change of the margin of the brain tissue ischemia zone.
RESULTS AND CONCLUSION:2,3,5-Triphenyltetrazolium chloride staining staining results showed that the volume of cerebral ischemia was significantly reduced in the hyperlipidemia+cerebral ischemia 7 day group. Hematoxylin-eosin staining results showed there was typical ischemic changes in al the cerebral ischemia models, and the number of microglial cel s after cerebral ischemia for 7 days was significantly smal er than that after cerebral ischemia for 3 days, and the changes were more obvious in the hyperlipidemia+7-day cerebral ischemia group when compared with the hyperlipidemia+3-day cerebral ischemia group. Ultrastructure showed there were neuronal and glial nuclear membrane shrinkage in al the cerebral ischemia models, mitochondria cristae was disappeared completely, endothelial cel mitochondria was decreased, most of the synaptic vesicles of nerve synapse were dissolved;the damages above were improved after ischemia for 7 days, especial y
hyperlipidemia+cerebral ischemia for 7 days, the neuronal degeneration and necrosis were reduced, the
mitochondrial damage was repaired, the number of mitochondrial cristae was increased significantly, and the synaptic vesicles of nerve synapse were recovered significantly. The results indicate that hyperlipidemia can promote the recovery of cerebral ischemic injury,
probably because the hyperlipidemia factors can activate the protection mechanism.
9.Effects of remifentanil postconditioning after myocardial ischemia reperfusion in rats
Hong ZHENG ; Pengtao LIN ; Wenhua CHEN ; Lanlan WANG ; Lizhen LI
The Journal of Clinical Anesthesiology 2017;33(8):785-788
Objective To explore the effect of remifentanil postconditioning on rats subjected to ischemia reperfusion injury and the relative mechanisms.Methods Seventy-eight Sprague-Dawley rats, weighing 200-250 g, were randomly divided into six groups (n=13): sham group (group S), ischemia/reperfusion group (group IR), naloxone group (group NAL), 5 μg·kg-1·min-1 remifentanil postconditioning group (group R1), 10 μg·kg-1·min-1remifentanil postconditioning group (group R2) and 20 μg·kg-1·min-1remifentanil postconditioning group (group R3).Group IR was given 45 min ischemia in the left descending anterior (LAD), followed by a 24-h period of reperfusion.Groups R1, R2, R3 received 10 min of remifentanil infusion of 5, 10 and 20 μg·kg-1·min-1 after 35 min ischemia followed by a 24 h period of reperfusion.Group NAL was given injection of naloxone 0.1 mg/kg at the point of 25 min myocardial ischemia, after 10 min, then remifentanil 10 μg·kg-1·min-1 for 10 min.The myocardial infarct size and pathological changes of myocardial tissue were observed, serum cTnI, LDH and CK-MB level were measured.Results Compared with group S, serum cTnI, LDH and CK-MB and myocardial infarct size were markedly increased in groups IR, NAL, R1, R2 and R3 (P<0.05), and pathologic injury of myocardial cells were augmented.In comparison with group IR, the indexes were decreased in groups R1, R2 and R3 (P<0.05).Conclusion Remifentanil postconditioning could protect against myocardial ischemia reperfusion injury in rats.The protection may be related to remifentanil activating the opioid receptors.There were ceiling effects of remifentanil postconditioning induced myocardial protection.
10.Effect of Dureping Injection on NO secreted by macrophage infected by influenza virus
Yanli ZHANG ; Ningping WANG ; Ligang GU ; Pengtao LI
Chinese Journal of Immunology 1985;0(05):-
Objective:To survey the effect of the Dureping Injection on the kinetic change of nitrous oxide(NO) in macrophage infected by the influenza virus FM1 strain.Methods:The murinal celiac macrophage(Ana-1) was infected by the virus,add the different concentration of the drug in the supernatant of the macrophage for 6 h,12 h,24 h and 36 h.The level of the NO in the supernatant was measured by the method of traditional Griess.Ana-1 cell line was infected by influenza virus FM1 strain,then treated with Dureping Injection 1 ?g/ml for 24 h.The cells were then collected,mRNA was extracted and the expression of NF-?B p65 was measured by RT-PCR;The nuclear protein was extracted and the expression of NF-?B p65 measured by Western blot.Results:60 ?g/ml,30 ?g/ml,10 ?g/ml and 1 ?g/ml group of Dureping Injection down-regulated amount of NO secreted by the Ana-1 cells infected by virus,and it was showed in dose relationship significantly;1 ?g/ml group of Dureping Injection down-regulated the expression of the NF-?B p65 mRNA and protein.Conclusion:Dureping Injection has an obvious effect against influenza virus FM1 strain by depressing the activity of NF-?B,which prevents the production of NO secreted by Ana-1 cells infected by the virus.