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中医伤科一号方治疗膝关节软组织损伤临床效果及其作用机制
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作者 李玉福 蒋臻 +2 位作者 王小菲 高凯 郑伟 《辽宁中医杂志》 CAS 北大核心 2024年第10期77-80,共4页
目的探讨中医伤科一号方治疗膝关节软组织损伤患者的临床效果及其作用机制。方法采取前瞻性随机临床试验,选取2021年9月—2022年11月医院收治的100例急性膝关节软组织损伤患者进行临床随机试验,采用随机数字表将患者分为伤科一号组和对... 目的探讨中医伤科一号方治疗膝关节软组织损伤患者的临床效果及其作用机制。方法采取前瞻性随机临床试验,选取2021年9月—2022年11月医院收治的100例急性膝关节软组织损伤患者进行临床随机试验,采用随机数字表将患者分为伤科一号组和对照组各50例,两组的基础治疗为患肢制动、抬高患肢,伤科一号组在基础治疗上采用中医药方伤科一号治疗,对照组在基础治疗上采用予扶他林软膏治疗,疗程均为1周,对比治疗前后患者的临床症状评分、膝关节屈曲功能、膝关节周径及临床疗效的差异。结果治疗前,伤科一号组和对照组患者的膝关节肿胀、疼痛、压痛及功能障碍评分组间对比,差异无统计学意义(P>0.05);经过1周的治疗,两组患者的上述各项指标评分较本组治疗前均呈明显的下降趋势(P<0.05),伤科一号组患者的各项临床症状评分降低较对照组更为显著(P<0.05);治疗前,伤科一号组和对照组患者的膝关节屈曲功能、膝关节周径组间对比,差异无统计学意义(P>0.05);经过1周的治疗,两组患者的膝关节屈曲功能较本组治疗前均呈明显改善,膝关节周径测量值则明显降低(P<0.05),伤科一号组患者的膝关节屈曲功能优于对照组,膝关节周径测量值低于对照组(P<0.05)。经过1周的治疗,伤科一号组达到痊愈的有34例、好转的有16例,对照组痊愈24例、好转24例、无效2例,伤科一号组治疗效果优于对照组(P<0.05)。结论中医伤科一号方治疗膝关节软组织损伤患者能更有效地缓解患者的临床症状、改善膝关节功能恢复,提高临床疗效。 展开更多
关键词 中医 伤科一 膝关节 软组织损伤 中药塌渍
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中药通便一号膏治疗阿片类药物相关性便秘的临床研究 被引量:5
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作者 张学哲 王文萍 王宁 《中华中医药学刊》 CAS 北大核心 2021年第6期179-183,共5页
目的观察和评价中药通便一号膏治疗阿片类药物相关性便秘(OIC)的有效性。方法采用随机平行对照设计,入选OIC患者(津亏肠燥证)90例,治疗组、对照组各45例,治疗组脱落7例,对照组脱落4例,共79例(治疗组38例、对照组41例)患者完成了研究。... 目的观察和评价中药通便一号膏治疗阿片类药物相关性便秘(OIC)的有效性。方法采用随机平行对照设计,入选OIC患者(津亏肠燥证)90例,治疗组、对照组各45例,治疗组脱落7例,对照组脱落4例,共79例(治疗组38例、对照组41例)患者完成了研究。治疗组服用中药通便一号膏1袋3次/d,对照组服用乳果糖口服液1支3次/d, 7 d后比较通便效果、中医证候疗效等。结果 OIC治疗组排便困难积分平均下降7.40分、便秘主症积分平均下降8.92分、中医证候积分平均下降13.84分,排便时间药物起效时间平均为28.27 h,优于对照组(P<0.05);治疗组排便时间总有效率为86.84%(33/38)、排便不尽总有效率为78.95%(30/38)、肛门直肠下坠、胀感总有效率为81.58%(31/38)、中医证候总有效率为78.95%(30/38),优于对照组(P<0.05);治疗组OIC生理评分平均下降6.21分、满意度平均下降6.61分、生活质量总积分平均下降32.68分、KPS评分平均升高6.21分,优于对照组(P<0.05),未见中药通便一号膏相关不良反应。结论中药通便一号膏可有效改善津亏肠燥证OIC排便困难、缩短排便时间,提高治疗满意度及生活质量,安全有效。 展开更多
关键词 癌痛 阿片类药物相关性便秘 通便一 中医 生活质量
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糖网一号对糖尿病大鼠视网膜细胞间粘附分子-1表达的影响
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作者 曾平 李晓霞 +1 位作者 欧阳芳 刘军 《中国中医眼科杂志》 2007年第6期345-348,共4页
目的探讨糖网一号对糖尿病大鼠视网膜细胞间粘附分子-1(ICAM-1)表达的影响及其保护作用。方法将造模成功的大鼠随机分为糖尿病模型组、二甲双胍组、糖网一号小剂量组、糖网一号大剂量组,每组12只,并设正常对照组(CON),相应处理各组大鼠... 目的探讨糖网一号对糖尿病大鼠视网膜细胞间粘附分子-1(ICAM-1)表达的影响及其保护作用。方法将造模成功的大鼠随机分为糖尿病模型组、二甲双胍组、糖网一号小剂量组、糖网一号大剂量组,每组12只,并设正常对照组(CON),相应处理各组大鼠。造模后及6个月后,分别测血糖及血液流变指标,并取大鼠眼球的石蜡切片进行免疫组织化学检测,对视网膜细胞间粘附分子-1(ICAM-1)的表达灰度进行计算机图像半定量测定。结果糖网一号组和二甲双胍组的血糖和血液流变学检测结果相比,前者优于后者,而且糖网一号大剂量组的疗效优于小剂量用药。糖网一号大剂量组ICAM-1表达灰度值较模型组显著降低,接近正常组,而二甲双胍组及糖尿病小剂量组则介于二者间。结论中药复方糖网一号能够有效降低血糖,改善血流变,抑制糖尿病大鼠视网膜ICAM-1的表达。 展开更多
关键词 糖尿病视网膜病变 细胞间粘附分子-1 糖网一
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热敷一号外用联合骶管注射治疗青少年型腰椎间盘突出症30例临床观察 被引量:2
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作者 时亚明 张啸 李云朋 《风湿病与关节炎》 2019年第8期21-24,共4页
目的:观察热敷一号联合骶管注射治疗青少年型腰椎间盘突出症的临床疗效。方法:将60例青少年型腰椎间盘突出症患者随机分为治疗组和对照组,每组30例。对照组给予骶管注射治疗,治疗组在对照组的基础上外用热敷一号治疗。2组均以1个月为1... 目的:观察热敷一号联合骶管注射治疗青少年型腰椎间盘突出症的临床疗效。方法:将60例青少年型腰椎间盘突出症患者随机分为治疗组和对照组,每组30例。对照组给予骶管注射治疗,治疗组在对照组的基础上外用热敷一号治疗。2组均以1个月为1个疗程。采用疼痛视觉模拟评分法(VAS)和日本骨科学会下腰痛评分(JOA)记录患者治疗前、治疗1周、治疗3周及末次回访时改善情况,根据改良Macnab标准评估临床疗效。结果:治疗1周、3周及末次随访时,2组VAS评分、JOA评分较治疗前均有改善(P <0.05),且治疗组治疗1周、3周VAS评分、JOA评分均优于对照组(P <0.05)。治疗组优7例,良20例,可2例,差1例,优良率为90.00%;对照组优5例,良15例,可6例,差4例,优良率为66.67%。2组比较,差异有统计学意义(P <0.05)。结论:热敷一号联合骶管注射治疗青少年型腰椎间盘突出症疗效确切,满意度明显高于单纯骶管注射。 展开更多
关键词 腰椎间盘突出症 青少年型 热敷一 骶管注射 临床疗效
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Selection and Cultivation of a New Towel Gourd——‘Taisi No.2' 被引量:1
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作者 冯春梅 陈海平 +2 位作者 赵永彬 屈为栋 王娇阳 《Agricultural Science & Technology》 CAS 2014年第7期1131-1133,1139,共4页
Selection and cultivation process of Taisi No.2 was introduced and a comparative test was conducted in 2008-2009.During 2010-2011,multiple-site tests were made,with production test and demonstration.The results indica... Selection and cultivation process of Taisi No.2 was introduced and a comparative test was conducted in 2008-2009.During 2010-2011,multiple-site tests were made,with production test and demonstration.The results indicated that yield of Taisi No.2 was higher compared with Wenling Baisigua.Furthermore,Taisi No.2 performed better in quality,commercial value,disease-tolerance and resistance.It is important to prepare work on cultivating strong seedlings,transplanting,strengthening fertilizer and water management,leading vine growth,timely harvest and disease prevention. 展开更多
关键词 Towel gourd Taisi No.2 FI hybrid
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A New Towel Gourd F_1 hybrid——‘Taisi NO.3'
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作者 冯春梅 赵永彬 +2 位作者 陈海平 王娇阳 屈为栋 《Agricultural Science & Technology》 CAS 2016年第10期2277-2279,共3页
'Taisi N0.3' is an early mid-maturing towel gourd F1 hybrid developed by crossing Ps17-6-5-2-10-8 as female parent and Ps39-3-8-4-6-5 as male parent. The period from sowing to first harvest is about 75 days in sprin... 'Taisi N0.3' is an early mid-maturing towel gourd F1 hybrid developed by crossing Ps17-6-5-2-10-8 as female parent and Ps39-3-8-4-6-5 as male parent. The period from sowing to first harvest is about 75 days in spring cropping. It grows exuberantly in early stage and better in middle and later stages; leaves are green and palmately divided; the maximum leaf's length and width are about 25.5 and 33.7 cm. It bears fruit at the main and lateral branch. The first female flower sets on the 7^th-8^th node, and the fruit-setting rate is 72.8%. The fruit-setting rate is high. Its fruit is long round stick shape, 47.4 cm in length, and 3.75 cm in width, with smooth and green skin covered by dark green stripes, dense flesh. The fruit tastes good, with high Vc content. It is resistant to downy mildew, moderately resistant to CMV, and highly resistant to blight. The average fruit weight is about 282.3 g with the general yield of 82 500 kg/hm2. 展开更多
关键词 Towel gourd Taisi No.3 F1 hybrid
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Major Cultivation Technology of HQ No.1, a New Flue-cured Tobacco Cultivar
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作者 李文宇 李爱华 《Agricultural Science & Technology》 CAS 2015年第3期497-499,共3页
The transplanting period, density, the number of left leaves and fertilizer amounts of HQ No.1 were explored in Hengyang. The results showed that with transplanting periods of March 5-March 15, and planting space of 1... The transplanting period, density, the number of left leaves and fertilizer amounts of HQ No.1 were explored in Hengyang. The results showed that with transplanting periods of March 5-March 15, and planting space of 120 cmx(50-60) cm, agronomic and economic characters of tobaccos showed insignificant differences. Specifically, plant height was growing upon the number of left leaf and fertilizer amount; tobacco yield and output value kept increasing upon fertilizer, and both reached maximums with pure N at 195 kg/hm^2, showing significant differences with the treatment of pure N at 135 kg/hm^2; the number of left leaf had the least effects on agronomic and economic characters of tobaccos. The research indicated that highly-qualified HQ No.1 can be produced, given that tobaccos are transplanted during March 10-March 15, planting density of 15 000-16 500 seedlings/hm^2, the number of left leaves of 22-24 leaves per seedling, and pure N of 150-165 kg/hm^2 in Hengyang. 展开更多
关键词 Flue-cured tobaccos HQ No.1 Major cultivation technology Agronomic characters Economic character Tolerance to disease
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Resistance of Grafted Tomato with Guozhen 1 as Stock against Root Knot Nematodes in Field 被引量:4
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作者 Xiaobo ZHANG Shijie TAO +1 位作者 Wenhe WANG Xiujuan TAO 《Agricultural Science & Technology》 CAS 2017年第10期1951-1954,共4页
[Objective] This study aimed to study the resistance of grafted tomato with Guozhen 1 as stock against root knot nematodes. [Method] Tomato seedlings were grafted with Guozhenl (T1) and Solanum torvum (T2) as the ... [Objective] This study aimed to study the resistance of grafted tomato with Guozhen 1 as stock against root knot nematodes. [Method] Tomato seedlings were grafted with Guozhenl (T1) and Solanum torvum (T2) as the rootstock, respectively. Self-rooted tomato seedlings were treated as the control (CK). The resistance of tomato against root knot nematodes was compared among the three treatments. [Result] Compared with those in the T2 and CK groups, the yield of tomato in the T1 group was increased by 17 436.75 and 31 753.65 kg/hm2 respectively, the plant height was increased by 10.55 and 14.54 cm respectively (P〈0.05), and the stem diameter was increased by 0.56 and 1.13 cm respectively (P〈0.05). The disease indexes of root knot nematodiasis in the three treatments were 0.55, 10.42 and 45.31, respectively, and there were significant differences among them (P〈0.05). [Conclusion] This study will provide a theoretical basis for the control of root knot nematodes in tomato by grafting. 展开更多
关键词 Guozhen 1 Solanum torvum Self-rooted seedling Root knot nematode
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Involvement of cAMP in ABA Signal Transduction in Tobacco Suspension Cells 被引量:2
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作者 刘璞 孟令军 +2 位作者 张会霞 陈珈 王学臣 《Acta Botanica Sinica》 CSCD 2002年第12期1432-1437,共6页
Abscisic acid (ABA) plays an important role in plant growth and developmental processes. Although some ABA signal molecules, such as cADPR, Ca2+, etc., have been reported, there. was no evidence proving the involvemen... Abscisic acid (ABA) plays an important role in plant growth and developmental processes. Although some ABA signal molecules, such as cADPR, Ca2+, etc., have been reported, there. was no evidence proving the involvement of cAMP in A-B-A, signal transduction. In this present study, the constructed gene ( rd29A-GUS) was transformed into Nicotiana tabacum, and calli was induced from the transgenic plant. The suspension cells obtained from the callus grew well and uniformly. Treatment of the suspension cells with ABA led to an increase in GUS activity, indicating that these transgenic suspension cells are useful for the study of ABA signaling. Addition of nicotinamide (cADPR inhibitor) or U-73122 (phospholiphase C inhibitor) could only partially inhibit the increase of GUS activity elicited by ABA. The inhibitory effect of nicotinamide was enhanced by application of K252a (inhibitor of protein kinase). Treatment of the suspension cells with 8-Br-cAMP, a membrane-permeable analogue of cAMP, could partially replace the effect of ABA. Furthermore, intracellular addition of IBMX (phosphodiesterase inhibitor) mimicked die effect of exogenous cAMP on the deduction of expression of rd29A promoter. These results suggested that cAMP was an important messenger in ABA signal transduction in tobacco suspension cell. 展开更多
关键词 TOBACCO ABA CAMP beta-glucuronidase (GUS) report gene signal transduction
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A NEW ONE-STEP BAND-LIMITED EXTRAPOLATION PROCEDURE USING EMPIRICAL ORTHOGONAL FUNCTIONS 被引量:1
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作者 Weng Jianfeng 《Journal of Electronics(China)》 2006年第5期777-780,共4页
A one-step band-limited extrapolation procedure is systematically developed under an a priori assumption of bandwidth. The rationale of the proposed scheme is to expand the known signal segment based on a band-limited... A one-step band-limited extrapolation procedure is systematically developed under an a priori assumption of bandwidth. The rationale of the proposed scheme is to expand the known signal segment based on a band-limited basis function set and then to generate a set of Empirical Orthogonal Functions (EOF’s) adaptively from the sample values of the band-limited function set. Simulation results indicate that, in addi- tion to the attractive adaptive feature, this scheme also appears to guarantee a smooth result for inexact data, thus suggesting the robustness of the proposed procedure. 展开更多
关键词 Band-limited signal One-step extrapolation Empirical Orthogonal Functions (EOF's) ADAPTIVE ROBUSTNESS
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Breeding of a New Watermelon Variety Mibao No.1
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作者 冷言峰 李兴盛 袁晓伟 《Agricultural Science & Technology》 CAS 2017年第12期2317-2319,共3页
Mibao No.1 (HSWM089 ♀ x HSWM130 ♂) is a new medium-maturing watermelon variety with fruit development period of 35 d and whole growth period of 103 d. It is easy to bear fruits with resistance to low temperature. ... Mibao No.1 (HSWM089 ♀ x HSWM130 ♂) is a new medium-maturing watermelon variety with fruit development period of 35 d and whole growth period of 103 d. It is easy to bear fruits with resistance to low temperature. The fruits of Mibao No.1 are spherical with dark green rind, wide strips and red, crisp and juicy flesh, characterized with delicious taste and good quality. The central sugar content of Mibao No.1 is 12%. Its rind is so tough that it is suitable for transportation. The average fruit weight is about 8-10 kg and the yield is about 5 000 kg per 667 m2. The series of experiments have demonstrated that Mibao No.1 is adapted to culti- vation in protected area and open field. 展开更多
关键词 WATERMELON Mibao No.l Cold resistance High yield
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An Improved Singularity Computing Algorithm Based on Wavelet Transform Modulus Maxima Method 被引量:1
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作者 赵健 谢端 范训礼 《Journal of Shanghai Jiaotong university(Science)》 EI 2006年第3期317-320,327,共5页
In order to reduce the hidden danger of noise which can be charactered by singularity spectrum, a new algorithm based on wavelet transform modulus maxima method was proposed. Singularity analysis is one of the most pr... In order to reduce the hidden danger of noise which can be charactered by singularity spectrum, a new algorithm based on wavelet transform modulus maxima method was proposed. Singularity analysis is one of the most promising new approaches for extracting noise hidden information from noisy time series . Because of singularity strength is hard to calculate accurately, a wavelet transform modulus maxima method was used to get singularity spectrum. The singularity spectrum of white noise and aluminium interconnection electromigration noise was calculated and analyzed. The experimental results show that the new algorithm is more accurate than tradition estimating algorithm. The proposed method is feasible and efficient. 展开更多
关键词 noise signal analysis singularity spectrum wavelet transform modulus maxima FRACTAL
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Feasibility investigation on deep ocean compact autonomous Raman spectrometer developed for in-situ detection of acid radical ions 被引量:10
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作者 杜增丰 李颖 +2 位作者 陈靓 郭金家 郑荣儿 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2015年第2期545-550,共6页
A newly developed Deep Ocean Compact Autonomous Raman Spectrometer (DOCARS) system is introduced and used for in-situ detection of acid radical ions in this paper. To evaluate the feasibility and capability of DOCAR... A newly developed Deep Ocean Compact Autonomous Raman Spectrometer (DOCARS) system is introduced and used for in-situ detection of acid radical ions in this paper. To evaluate the feasibility and capability of DOCARS for quantitative analysis of the acid radical ions in the deep ocean, extensive investigations have been carried out both in laboratory and sea trials during the development phase. In the laboratory investigations, Raman spectra of the prepared samples (acid radical ions solutions) were obtained, and analyzed using the method of internal standard normalization in data processing. The Raman signal of acid radical ions was normalized by that of water molecules. The calibration curve showed that the normalized Raman signal intensity of SO4^2-, NO3^-, and HCO^-3 increases linearly as the concentration rises with correlation coefficient R^2 of 0.99, 0.99, and 0.98 respectively. The linear function obtained from the calibration curve was then used for the analysis of the spectra ,data acquired in the sea trial under a simulating chemical field in the deep-sea environment. It was found that the detected concentration of NO3 according to the linear function can reflect the concentration changes of NO~ after the sample was released, and the detection accuracy of the DOCARS system for SO^2-_4 is 8%. All the results showed that the DOCARS system has great potential in quantitative detection of acid radical ions under the deep-sea environment, while the sensitivity of the DOCARS system is expected to be improved. 展开更多
关键词 laser Raman spectroscopy Deep Ocean Compact Autonomous Raman Spectrometer (DOCARS) acid radical ions
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Carbon monoxide contributes to the constipating effects of granisetron in rat colon 被引量:1
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作者 Carmela Nacci Margherita Fanelli +3 位作者 Maria Assunta Potenza Valentina Leo Monica Montagnani Maria Antonietta De Salvia 《World Journal of Gastroenterology》 SCIE CAS 2016年第42期9333-9345,共13页
AIM To investigate the mechanisms underlying the potential contribution of the heme oxygenase/carbon monoxide(HO/CO) pathway in the constipating effects of granisetron. METHODS For in vivo studies, gastrointestinal mo... AIM To investigate the mechanisms underlying the potential contribution of the heme oxygenase/carbon monoxide(HO/CO) pathway in the constipating effects of granisetron. METHODS For in vivo studies, gastrointestinal motility was evaluated in male rats acutely treated with granisetron [25, 50, 75 μg/kg/subcutaneous(sc)], zinc protoporphyrin IX [Zn PPIX, 50 μg/kg/intraperitoneal(ip)] and hemin(50 μmol/L/kg/ip), alone or in combination. For in vitro studies, the contractile neurogenic response to electrical field stimulation(EFS, 3, 5, 10 Hz, 14 V, 1 ms, pulse trains lasting 10 s), as well as the contractile myogenic response to acetylcholine(ACh, 0.1-100 μmol/L) were evaluated on colon specimens incubated with granisetron(3 μmol/L, 15 min), Zn PPIX(10 μmol/L, 60 min) or CO-releasing molecule-3(CORM-3, 100, 200, 400 μmol/L) alone or in combination. These experiments were performed under co-treatment withor without atropine(3 μmol/L, a muscarinic receptor antagonist) or NG-nitro-L-Arginine(L-NNA, 100 μmol/L, a nitric oxide synthase inhibitor).RESULTS Administration of granisetron(50, 75 μg/kg) in vivo significantly increased the time to first defecation(P = 0.045 vs vehicle-treated rats), clearly suggesting a constipating effect of this drug. Although administration of Zn PPIX or hemin alone had no effect on this gastrointestinal motility parameter, Zn PPIX co-administered with granisetron abolished the granisetron-induced constipation. On the other hand, co-administration of hemin and granisetron did not modify the increased constipation observed under granisetron alone. When administered in vitro, granisetron alone(3 μmol/L) did not significantly modify the colon's contractile response to either EFS or ACh. Incubation with Zn PPIX alone(10 μmol/L) significantly reduced the colon's contractile response to EFS(P = 0.016) but had no effect on contractile response to ACh. Co-administration of Zn PPIX and atropine(3 μmol/L) abolished the Zn PPIX-mediated decrease in contractile response to EFS. Conversely, incubation with CORM-3(400 μmol/L) alone increased both the contractile response to EFS at 10 Hz(10 Hz: 71.02 ± 19.16 vs 116.25 ± 53.70, P = 0.01) and the contractile response to ACh(100 μmol/L)(P = 0.012). Co-administration of atropine abolished the CORM-3-mediated effects on the EFS-mediated response. When granisetron was co-incubated in vitro with ZnP PIX, the ZnP PIX-mediated decrease in colon contractile response to EFS was lost. On the other hand, co-incubation of granisetron and CORM-3(400 μmol/L) further increased the colon's contractile response to EFS(at 5 Hz: P = 0.007; at 10 Hz: P = 0.001) and to ACh(ACh 10 μmol/L: P = 0.001; ACh 100 μmol/L: P = 0.001) elicited by CORM-3 alone. L-NNA co-administered with granisetron and CORM-3 abolished the potentiating effect of CORM-3 on granisetron on both the EFSinduced and ACh-induced contractile response.CONCLUSION Taken together, findings from in vivo and in vitro studies suggest that the HO/CO pathway is involved in the constipating effects of granisetron. 展开更多
关键词 GRANISETRON Carbon monoxide Heme oxygenase COLON CONTRACTION Neurogenic response Myogenic response
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Thermal Entangled Quantum Refrigerator Working with Three-Qubit Heisenberg XX Model
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作者 郑洁 何济洲 何弦 《Communications in Theoretical Physics》 SCIE CAS CSCD 2011年第8期301-306,共6页
An entangled quantum refrigerator working with a three-qubit one-dimensional isotropic Heisenberg XX model in a constant external magnetic field is constructed in this paper. Based on the quantum first law of thermody... An entangled quantum refrigerator working with a three-qubit one-dimensional isotropic Heisenberg XX model in a constant external magnetic field is constructed in this paper. Based on the quantum first law of thermodynamics, the expressions for several basic thermodynamic quantities such as the heat transferred, the net work and the coefficient of performance are derived. Moreover, the influence of the thermal entanglement on the basic thermodynamic quantities is investigated. Several interesting features of the variation of the basic thermodynamic quantities with the thermal entanglement in zero and nonzero magnetic field are obtained. 展开更多
关键词 nonequilibrium and irreversible thermodynamics thermal entanglement thermal entangled quantum refrigerator Heisenberg XX model
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Stochastic Resonance in Linear Region of a Single-Mode Laser: Effects of Amplitude Modulation of Signal 被引量:1
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作者 ZHANG Liang-Ying CAO Li WU Da-Jin 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第5期1310-1314,共5页
A single-mode laser noise model driven by quadratic colored pump noise and amplitude modulation signal is proposed. The real and imaginary parts of the pump noise are assumed to be cross-correlation. The effect of cro... A single-mode laser noise model driven by quadratic colored pump noise and amplitude modulation signal is proposed. The real and imaginary parts of the pump noise are assumed to be cross-correlation. The effect of cross- correlation of noise and amplitude modulation of signal on laser statistical properties is studied by using the linearized approximation. The analytic expression of signal-to-noise ratio (SNR) is calculated. It is found that the phenomena of stochastic resonance (SR) respectively exist in the curves of the SNR versus the noise cross-correlation coefficient λ and the SNR versus the pump parameter a, as well as the SNR versus the signal frequency ω in our model. It is shown that there are three different typies of SR in the model: the conventional form of SR, the SR in the broad sense, and the bona fide SR. 展开更多
关键词 stochastic resonance single-mode laser amplitude modulation signal
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The Single Training Sample Extraction of Visual Evoked Potentials Based on Wavelet Transform
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作者 LIU Fang ZHANG Zhen +1 位作者 CHEN Wen-chao QIN Bing 《Chinese Journal of Biomedical Engineering(English Edition)》 2007年第4期170-178,共9页
Based on the good localization characteristic of the wavelet transform both in time and frequency domain, a de-noising method based on wavelet transform is presented, which can make the extraction of visual evoked pot... Based on the good localization characteristic of the wavelet transform both in time and frequency domain, a de-noising method based on wavelet transform is presented, which can make the extraction of visual evoked potentials in single training sample from the EEG background noise in favor of studying the changes between the single sample response happen. The information is probably related with the different function, appearance and pathologies of the brain. At the same time this method can also be used to remove those signal’s artifacts that do not appear with EP within the same scope of time or frequency. The traditional Fourier filter can hardly attain the similar result. This method is different from other wavelet de-noising methods in which different criteria are employed in choosing wavelet coefficient. It has a biggest virtue of noting the differences among the single training sample and making use of the characteristics of high time frequency resolution to reduce the effect of interference factors to a maximum extent within the time scope that EP appear. The experiment result proves that this method is not restricted by the signal-to-noise ratio of evoked potential and electroencephalograph (EEG) and even can recognize instantaneous event under the condition of lower signal-to-noise ratio, as well as recognize the samples which evoked evident response more easily. Therefore, more evident average evoked response could be achieved by de-nosing the signals obtained through averaging out the samples that can evoke evident responses than de-nosing the average of original signals. In addition, averaging methodology can dramatically reduce the number of record samples needed, thus avoiding the effect of behavior change during the recording process. This methodology pays attention to the differences among single training sample and also accomplishes the extraction of visual evoked potentials from single trainings sample. As a result, system speed and accuracy could be improved to a great extent if this methodology is applied to brain-computer interface system based on evoked responses. 展开更多
关键词 visual evoked potential signal extraction wavelet transform single training sample
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强心一号复方对脓毒症小鼠心脏的保护作用及机制 被引量:5
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作者 王雪蕊 徐霄龙 +2 位作者 白云静 郭玉红 刘清泉 《中医杂志》 CSCD 北大核心 2019年第24期2133-2137,共5页
目的探讨强心一号复方对脓毒症小鼠的心脏保护作用及可能作用机制。方法 45只C57BL/6J小鼠分为假手术组、模型组、强心组,每组15只。模型组和强心组采取盲肠结扎穿孔术制备脓毒症模型。强心组术后2h给予1g/(kg·d)强心一号复方灌胃... 目的探讨强心一号复方对脓毒症小鼠的心脏保护作用及可能作用机制。方法 45只C57BL/6J小鼠分为假手术组、模型组、强心组,每组15只。模型组和强心组采取盲肠结扎穿孔术制备脓毒症模型。强心组术后2h给予1g/(kg·d)强心一号复方灌胃,模型组、假手术组给予1ml生理盐水灌胃,各组均灌胃1次。术后48h采用小动物超声评价心功能[室间隔厚度(IVS)、左心室后壁收缩期厚度(LVPWS)、左心室后壁舒张期厚度(LVPWD)、左心室收缩末期内径(LVEDS)、左心室舒张末期内径(LVEDD)、左心室射血分数(LVEF)]情况,HE染色和WGA染色评价心肌细胞病理改变,Realtime PCR检测心脏组织炎症因子[包括白细胞介素6(IL-6)、肿瘤坏死因子α(TNF-α)、白细胞介素1β(IL-1β)]mRNA水平表达,ELISA法检测血清中炎症因子蛋白表达。结果与假手术组比较,模型组IVS和LVEF显著降低,心脏组织IL-1β、TNF-α和IL-6 mRNA表达水平和血清中IL-1β、TNF-α和IL-6蛋白表达水平均显著增高(P<0.05);与模型组比较,强心组IVS和LVEF显著升高,心脏组织IL-1β、TNF-α和IL-6 mRNA表达水平和血清中IL-1β、TNF-α和IL-6蛋白表达显著下降(P<0.05)。病理结果显示,与假手术组相比,模型组心脏组织炎症细胞浸润增多,心肌细胞代偿性肥大;与模型组相比,强心组心脏组织炎症细胞浸润和心肌细胞代偿性肥大情况改善。结论强心一号复方对脓毒症小鼠心功能和心肌重构具有保护作用,其机制可能与减轻炎症反应有关。 展开更多
关键词 脓毒症 强心一复方 心功能 炎症反应
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糖肾一号胶囊对糖尿病肾病大鼠血清SREBP-1c、SREBP-2c水平及肾组织IRS-1、PI3K、podocin、CD2AP蛋白表达影响 被引量:11
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作者 苏衍进 王郁金 +6 位作者 王琴 徐军建 赵莉 秦刚新 袁秀丽 杨锦欣 李科 《中药药理与临床》 CSCD 北大核心 2017年第5期140-143,共4页
目的:观察糖肾一号胶囊对糖尿病肾病大鼠的作用及可能机制。方法:SD大鼠采用腔注射STZ方法建立糖尿病肾病模型,对造模成功大鼠分为模型组、厄贝沙坦片组(15.75mg/kg)、糖肾一号组(1800mg/kg)、糖肾一号组(900mg/kg)、糖肾一号组(450mg/k... 目的:观察糖肾一号胶囊对糖尿病肾病大鼠的作用及可能机制。方法:SD大鼠采用腔注射STZ方法建立糖尿病肾病模型,对造模成功大鼠分为模型组、厄贝沙坦片组(15.75mg/kg)、糖肾一号组(1800mg/kg)、糖肾一号组(900mg/kg)、糖肾一号组(450mg/kg),各15只,另设正常对照组15只,连续给药8周,观察血糖、血脂、胱抑素C、SREBP-1c、SREBP-2c水平,尿微量白蛋白,肾组织IRS-1、PI3K、podocin、CD2AP蛋白表达水平。结果:与模型对照组比较,糖肾一号胶囊(900mg/kg、1800mg/kg)各组大鼠血糖、血脂、胱抑素C、尿微量白蛋白明显降低,肾脏组织IRS-1及PI3K、podocin、CD2AP蛋白表达水平明显升高,糖肾一号胶囊(450mg/kg)组升高不明显,糖肾一号胶囊(900mg/kg)组与糖肾一号胶囊(450mg/kg)比较,具有统计学意义,糖肾一号胶囊(900mg/kg)为有效剂量。结论:糖肾一号胶囊通过激活胰岛素受体底物-1(IRS-1),激活胰岛素信号传导系统,达到降糖;降低血清SREBP-1c、SREBP-2c水平,调节血脂代谢;提高肾组织podocin、CD2AP蛋白表达,改善肾足细胞损伤,降低尿蛋白,进而通过上述综合作用达到改善肾脏纤维化、硬化作用。 展开更多
关键词 糖肾一胶囊 糖尿病肾病 SREBP-1C SREBP-2c IRS-1 PI3K PODOCIN CD2AP
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强心一号复方对脓毒症模型小鼠海马区小胶质细胞极化相关基因表达的影响 被引量:2
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作者 王雪蕊 刘清泉 +4 位作者 徐霄龙 赵京霞 王宁 白云静 郭玉红 《中医杂志》 CSCD 北大核心 2021年第9期814-818,共5页
目的探讨强心一号复方治疗脓毒症的可能作用机制。方法 36只雄性C57BL/6小鼠随机分为假手术组、模型组、强心组,每组12只。假手术组不结扎穿刺。模型组和强心组采取盲肠结扎打孔法制备脓毒症模型。于造模后2h开始强心组小鼠给予1g/(kg&#... 目的探讨强心一号复方治疗脓毒症的可能作用机制。方法 36只雄性C57BL/6小鼠随机分为假手术组、模型组、强心组,每组12只。假手术组不结扎穿刺。模型组和强心组采取盲肠结扎打孔法制备脓毒症模型。于造模后2h开始强心组小鼠给予1g/(kg·d)强心一号复方灌胃,模型组和假手术组给予1ml生理盐水灌胃,均每日1次,连续10天。取各组小鼠海马区组织提取RNA,进行高通量测序及结果分析,并采用Real-time PCR检测各组海马组织小胶质细胞极化相关基因Toll样受体4(Tlr4)、高迁移率族蛋白B1(Hmgb1)、白细胞介素10(IL-10)、重组人精氨酸酶1(Arg-1)基因表达情况。结果假手术组、模型组、强心组三组两两比较后差异显著基因共64个,排名前10位的基因分别为Slc11a1、Ephx2、Dusp19、Serhl2、GLP、Atm、Ipo9、C1qtnf9、Tpra1、Cat。与假手术组相比,模型组海马组织中Tlr4、Hmgb1、Arg-1及IL-10基因表达水平均显著升高(P<0.05);与模型组相比,强心组海马组织中Tlr4和Hmgb1基因表达水平显著下降(P<0.05),Arg-1及IL-10基因表达水平显著升高(P<0.05)。结论强心一号复方治疗脓毒症的作用机制可能与调节海马区小胶质细胞极化有关。 展开更多
关键词 脓毒症 强心一复方 高通量测序 海马 小胶质细胞
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