玉屏风复合多糖对免疫抑制小鼠的免疫调节作用

为探讨玉屏风复合多糖对免疫功能损伤的调节和保护作用,以环磷酰胺80 mg/kg诱导的免疫低下小鼠为实验动物模型,通过检测小鼠的脾脏指数、脾淋巴细胞增殖能力、血清溶血素和血清中IL-2等指标,观察不同剂量玉屏风复合多糖(100,200,400 mg/kg)对小鼠脾脏指数、脾淋巴细胞增殖能力、血清溶血素和血清IL-2的影响。结果发现,玉屏风多糖能使免疫抑制小鼠的脾脏指数升高,促进脾淋巴细胞的增值;玉屏风多糖可促进正常小鼠血清溶血素抗体的生成,对抗环磷酰胺所致的小鼠血清溶血素抗体分泌减少;玉屏风复合多糖能提高正常小鼠和免疫抑制的小鼠血清的IL-2水平,尤其以中、低剂量组效果较好。结果证实,玉屏风多糖能对抗环磷酰胺诱导的小鼠免疫抑制,提高免疫功能,对小鼠的脾脏功能也有保护作用。     

The Protection and Regulatory Effects of Yupingfeng Polysaccharides on Mice with Immune Function Damage

[Objective] To discuss the protection and regulatory effects of Yupingfeng polysaccharides on mice with immune function damage.[Methods]The immunosuppressive mice mode was established by 80 mg/kg cyclophosphamide. Effects of different dosages of Yupingfeng polysaccharides( 150,300,600 mg / kg) on structure and function recovery of mice immune organs were observed. [Results]The thymus and spleen in mice enlarged significantly; spleen index of mice increased obviously; splenic lymphocyte proliferation and transformation capacitates and NK cell activity all increased significantly( P 0. 05 or P 0. 01). Besides,spleen structure was damaged with compensatory hyperplasia of lymphoid tissue. Observation of polysaccharides positive control group( no administration of cyclophosphamide) showed that after mice were stimulated by Yupingfeng polysaccharides,spleens showed structural hyperplasia and hypertrophy. [Conclusions]Yupingfeng polysaccharides significantly promoted the structural and functional compensation of spleen after immunosuppression,and had obvious enhancement effects on spleen functions of normal mice.     

芪参口服液对免疫功能低下小鼠的保护作用

为探讨芪参口服液对免疫力低下小鼠的保护作用,用环磷酰胺造小鼠免疫力低下模型,同时灌胃给芪参口服液,分别测定小鼠的胸腺系数、脾脏系数、血清溶血素水平、血清IL-2含量和网状内皮细胞的吞噬能力。结果显示：芪参口服液能够显著增加免疫功能低下小鼠的胸腺系数和脾脏系数,显著增强其血清溶血素生成水平和网状内皮细胞的吞噬能力(P<0.01)。表明芪参口服液对免疫功能低下小鼠具有保护作用。     

黄芪多糖对氟苯尼考诱导的免疫抑制小鼠保护作用

为了调节动物免疫状态和改善机体防御能力提供试验依据。利用MTT法和ELISA法探讨黄芪多糖对免疫抑制小鼠免疫功能的调节作用,建立氟苯尼考诱导免疫抑制小鼠模型,通过称重计算脾脏指数;MTT法检测T、B淋巴细胞增殖反应;双抗夹心ELISA方法检测小鼠血清中IgG,IgG1,IgG2b抗体水平。结果表明：黄芪多糖能够提高免疫抑制小鼠的脾脏指数,在ConA或者LPS刺激下提高T、B淋巴细胞增殖率,提高抗体水平。黄芪多糖在一定剂量下对氟苯尼考诱导的免疫抑制小鼠有一定的保护作用。     

蟾酥注射液对小鼠淋巴细胞影响的研究

为了研究蟾酥注射液对机体淋巴细胞免疫功能的影响,选择不同浓度的蟾酥注射液作为试验组,分别与小鼠的脾淋巴细胞共同孵育48 h,检测细胞增殖水平的影响;用ELSIA法检测蟾酥注射液对几种重要的细胞因子(IFN-γ、IL-2和IL-12)分泌的影响;应用流式细胞技术检测蟾酥注射液对小鼠脾中T淋巴细胞CD4/CD8表达和细胞周期的影响。结果显示,蟾酥注射液在一定剂量范围内能够显著增强小鼠脾淋巴细胞的增殖能力;能够显著增强IFN-γ、IL-2和IL-12分泌;能够显著提高小鼠脾中CD4+ CD8-和CD4- CD8+表型的T淋巴细胞亚群百分率;能够显著提高小鼠脾中淋巴细胞进入S期的百分率。表明蟾酥注射液在体外能够显著提高淋巴细胞的增殖及功能,说明蟾酥注射能显著地增强机体特异性免疫功能。     

Protective Effects of Coriolus versciclor Polysaccharides on Liver Injury of Mice Induced by CCl_4

[Objective] To discuss the protective effects of Coriolus versciclor polysaccharides on liver injury of mice induced by CCl4.[Methods]40 male Kunming mice at four moths old were randomly divided into four groups,which were control group,model group,C. versciclor polysaccharides protection group and feeds + C. versciclor polysaccharides group. Mice were fed for 8 d. On 2 h after final administration,intraperitoneal injection of blend oil solution was carried out was carried out in control group. And in other groups,intraperitoneal injection of0. 15% CCl4 blend oil solution( 10 mL / kg) was conducted. After 18 h,eyeballs were collected and serum was isolated. Livers were taken out and the hepatosomatic index was calculated. Liver homogenate was prepared and the ALT and AST were detected,as well as the SOD and NOS activities,and MDA,GSH and NO contents.[Results] Compared with model group,C. versciclor polysaccharides in different administration ways reduced the hepatosomatic index( P 0. 05) and MDA content( P 0. 001),lowered the AST activity in serum( P 0. 05),the NOS activity and the NO content( P 0. 01),and enhanced the SOD activity and GSH content( P 0. 01).[Conclusions] C. versciclor polysaccharides in different administration ways protected the liver injury of mice induced by CCl4.     

Preventive Effects of Vitamin C And Polysaccharides in Dioscrea pposite Thunb. on Cadmium-induced Liver Injury in Mice

[Objective]To investigate the preventive protective effects and its mechanism of vitamin C and polysaccharide in Dioscrea pposite Thunb. on cadmium-induced liver damage in mice. [Methods]50 Kunming mice were randomly divided into control group,model group,D. pposite polysaccharides protection group,vitamin C protection group,D. pposite polysaccharides and vitamin C protection group. At the 7th day of feeding,the mice were given saline by gavage,and the mice in other groups were intraperitoneally injected with 3. 0 mg /kg CdCl2 solution. 24 hours after injection,blood was collected for ALT and AST test. Then,mice were sacrificed and the livers were removed for the calculation of hepatosomatic index(liver weight / body weight). Also,the liver homogenates were prepared for the determination of SOD and GSHPx activities and the of MDA and NO contents. [Results]Compared with the mice in model group,the liver-somatic index,serum ALT,AST activity,and contents of liver MDA and NO reduced,the activities of SOD and GSH-Px,and the content of GSH improved in D. pposite polysaccharides and vitamin C protection group(*P 0. 05,**P 0. 01). Compared with the model grfoup,the protective effects of D. pposite polysaccharides combined with vitamin C strengthened(**P 0. 01). [Conclusions]The combination of D. pposite polysaccharides and vitamin C has preventive protection effects on cadmium-induced liver injury in mice by antagonizing cadmium and /or oxidative stress. The application of D. pposite polysaccharides combined with vitamin C had a synergistic effect.     

苜蓿多糖对小鼠淋巴细胞增殖和NK细胞活性影响的研究

为了探讨苜蓿多糖对小鼠免疫功能的影响,从苜蓿中提取苜蓿多糖,通过体外苜蓿多糖对淋巴细胞增殖和NK细胞活性影响的研究,初步确定其免疫调节活性。采用MTT法,检测苜蓿多糖对正常Balb/c小鼠体外脾淋巴细胞增殖的影响和NK细胞对K562细胞杀伤活性的影响。结果表明：苜蓿多糖可以单一激活促进小鼠脾淋巴细胞的增殖,可以协同ConA刺激T细胞增殖,或协同LPS刺激B细胞增殖,提示苜蓿多糖能够调节机体的细胞免疫和体液免疫功能;苜蓿多糖可以显著地增强NK细胞对K562靶细胞的杀伤活性,提示苜蓿多糖能显著地增强机体非特异性免疫功能。因此,说明苜蓿多糖具有很好的免疫调节效果。     

坦布苏病毒囊膜蛋白诱导的小鼠免疫应答

为了研究坦布苏病毒囊膜蛋白(E蛋白)的免疫原性,利用大肠杆菌表达系统高效表达坦布苏病毒囊膜蛋白(E蛋白)并对其诱导小鼠免疫应答进行了研究。结果表明,E蛋白免疫BALB/c小鼠后,免疫组小鼠血清中抗体效价均可达1∶51 200以上;同时,E蛋白可显著诱导血清中细胞因子IL-2、TNF-α和IFN-γ的表达,免疫组小鼠血清中IL-2、TNF-α的含量均极显著高于对照组(P0.01),IFN-γ含量则显著高于对照组(P0.05);此外,与对照组相比,E蛋白还可极显著刺激小鼠脾脏淋巴细胞的增殖,上述结果表明,E蛋白免疫后,小鼠机体可产生显著的体液免疫和细胞免疫反应。攻毒保护性试验结果显示,攻毒后,经荧光定量RT-PCR检测,E蛋白免疫组小鼠脑、肝脏、脾脏、卵巢、肾脏中坦布苏病毒载量均显著低于对照组,表明免疫E蛋白可有效抑制坦布苏病毒在小鼠各个组织中的增殖。结果表明,大肠杆菌表达的坦布苏病毒E蛋白可作为坦布苏病毒亚单位疫苗的候选抗原,为进一步预防和控制坦布苏病毒病奠定理论基础。     

胶体金对小鼠细胞免疫的影响

实验设计了四种直径和三种剂量12个组合的胶体金（CG）对小白鼠进行注射处理；采用MTT法、放射性免疫法、LDH短程释放法，测定了T、B淋巴细胞增殖活性及其腹腔巨嗜细胞活性，外周血血清和脾脏淋巴细胞诱导白介素2含量和脾脏NK细胞活性，结果表明：不同直径和剂量的CG对机体有不同程度的影响，其中直径15nm、10nmCG的0.3mL和0.2mL剂量组不仅对T、B淋巴细胞增殖活性和血清中IL-2含量有显著促进，也可显著提高腹腔巨噬细胞活性及脾脏NK细胞杀伤活性，0.1mL剂量组虽有提高但不显著；直径5nm、20nm各个剂量组效果的波动较大，中、高剂量组对四项指标起促进作用但不显著，低剂量组则没有促进作用。证明了15nm和10nm中高剂量的胶体金可显著提高小鼠机体特异性和非特异性细胞免疫功能。     

银杏叶提取物对肉仔鸡淋巴细胞增殖及细胞因子水平的影响

为了研究银杏叶提取物(EGB)对肉仔鸡淋巴细胞增殖及细胞因子水平的影响。将360只1日龄健康AA肉用母雏鸡随机分成5组,每组6个重复,其中一组为对照组,饲喂基础日粮;其余4组分别饲喂添加0.009%金霉素及0.15%、0.20%和0.25% EGB的日粮,试验期为42天。测定肉仔鸡外周血和脾脏淋巴细胞转化率以及血清中细胞因子IL-1、IL-2、IFN-γ、TNF-α的含量。结果显示,日粮中添加不同水平EGB可促进肉仔鸡外周血和脾脏淋巴细胞增殖转化,提高血清中细胞因子IL-1、IL-2、IFN-γ、TNF-α的水平,并且在日粮中添加EGB的作用效果比添加金霉素的作用效果好。表明日粮中添加EGB可增强肉仔鸡的免疫功能。     

The Antioxidation of Proanthocyanidins from in Rhodiola rosea L.

[Objective]To discuss the antioxidation of proanthocyanidins( OPCRR) in Rhodiola rosea L. [Methods]By establishing peroxide injury model of ICR mice induced by D-gal,intragastric administration of mice was carried out for continuous 49 d. Then,80,160 and 320( BW) mg/kg OPCRR were added into low-,middle- and high-dosage groups,respectively. The SOD,GSH,GSH-Px and MDA in serum,heart,liver and brain tissues and the MAO in liver and brain tissues were investigated. [Results] Compared with model control group,OPCRR at certain dosage could significantly enhance the SOD and GSH-Px activities of mice serum,heat,liver and brain tissues,and obviously reduced the MDA content. And high-dosage group was the most prominent. In high-dosage group,SOD activities of serum,heart,liver and brain tissues enhanced by 29. 5%,28. 1%,62. 7% and 90. 8%,respectively; GSH-Px activities enhanced by 67. 8%,58. 4%,32. 1% and50. 3%,respectively; MDA contents reduced by 19. 2%,30. 0%,33. 3% and 19. 2%. Besides,middle- and high-dosage groups showed extremely significant effects on reducing the brain MAO activity( P 0. 01),which decreased by 22. 3% and 28. 6%,respectively. High-dosage group significantly reduced the liver MAO activity( P 0. 05) by 36. 5%. [Conclusions] OPCRR protected the organism in different degrees,antagonized peroxidation injury induced by D-gal,and prevented from aging.     

加味玉屏风散对实验性免疫抑制黄鳝非特异性免疫功能的影响

【研究目的】研究了由黄芪、白术、防风、党参和甘草组成的加味玉屏风散对实验性免疫抑制黄鳝非特异性免疫功能的影响。【方法】阴性空白对照组只腹腔注射生理盐水,阳性空白对照组注射环磷酰胺,设低、中、高三个剂量阳性用药组注射环磷酰胺和加味玉屏风散,阳性用药对照组注射环磷酰胺和黄芪注射液,于第3d、第9d各注射一次,在第15d采样,分别测定脾脏体指数和抗氧化酶活性,并统计各组的死亡率。【结果】阳性空白对照组黄鳝与阴性空白对照组相比,死亡率显著升高（P<0.05）,脾脏体指数极显著降低（P<0.01）,抗氧化酶CAT、GSH-Px活性受抑制极显著（P<0.01）,SOD活性显著降低（P<0.05）。各用药组的死亡率均比阳性空白对照组的低,脾脏体指数和CAT、GSH-PX抗氧化酶活性均有回升,并接近或超过健康组;SOD活性则远超过健康组水平,其中尤以阳性用药低剂量组效果最为显著（P<0.01）。【结论】加味玉屏风散具有良好的增强黄鳝非特异性免疫功能的作用。     

绿原酸对小鼠脾脏淋巴细胞体外增殖和分泌功能的影响

为分析绿原酸(CHA)对小鼠脾脏淋巴细胞增殖、分泌功能的影响。无菌操作分离小鼠脾脏,制备脾脏淋巴细胞并用含10%胎牛血清的RPMI 1640培养,在培养液中分别加入诱导剂刀豆蛋白(ConA)和脂多糖(LPS)以及0、40、80、160 μg/mL不同浓度的CHA,经过不同时间培养后,采用MTT法检测T和B淋巴细胞的增殖,ELISA和Griess法分别检测淋巴细胞分泌TNF-α和NO的水平。结果表明：低浓度和中浓度CHA提高ConA/LPS诱导的T、B淋巴细胞增殖和存活,而高浓度CHA明显抑制其细胞增殖转化;CHA促进小鼠脾脏T、B淋巴细胞分泌NO;CHA对T淋巴细胞分泌TNF-α影响不大,中浓度CHA可显著促进脾脏B淋巴细胞分泌TNF-α,高浓度反而抑制其分泌;CHA促进环磷酰胺处理的小鼠脾脏T和B淋巴细胞体外增殖,但对其NO分泌量影响不明显。结果提示CHA可能通过影响淋巴细胞增殖和细胞因子分泌而表现免疫调节作用。     

牦牛脾脏转移因子对小鼠淋巴细胞转化增殖的影响

为了研制一种能够增强动物抗病力的生物活性免疫制剂。采用冻融-透析法提取牦牛脾脏中非特异性转移因子(nTF),并用MTT法检测牦牛TF对小鼠淋巴细胞转化增殖的影响。结果表明：（淋巴细胞+ 刀豆蛋白 +TF）对小鼠脾淋巴细胞的转化增殖效果优于（淋巴细胞+ TF）组和（淋巴细胞+脂多糖+TF）组,差异显著(P<0.05);注射TF组对小鼠脾淋巴细胞的转化增殖的效果优于注射生理盐水对照组 (P<0.05)。牦牛脾脏转移因子对小鼠脾淋巴细胞增殖有促进作用,协同刀豆蛋白(ConA)或脂多糖(LPS)对淋巴细胞增殖的效果有增强趋势。     

Functions of Antiradiation Gel of RADIX SCUTELLARIAE and RADIX ET RHIZOMA GINSENG after UVB Irradiation

[Objective] To research the protective effects of antiradiation gel of RADIX SCUTELLARIAE and RADIX ET RHIZOMA GINSENG(Shen Qin Antiradiation Gel) on skin and immune system injury induced by UVB irradiation. [Methods] After Shen Qin Antiradiation Gel administration and UVB irradiation,changes of visceral index,skin histomorphology,and lymphocyte and blood platelet count were observed. transformation rate of splenic lymphocyte was detected by MTT method; and SOD activity in skin tissue homogenate was detected by enzymes and biochemical method. [Results] Shen Qin Antiradiation Gel could enhance the thymus index and lymphocyte count,increase the transformation rate of splenic lymphocyte and the SOD activity in skin tissue of mice. [Conclusions] Shen Qin Antiradiation Gel could resist UVB irradiation,and significantly protected the immune system and skin tissue of mice.     

蟾酥注射液对小鼠免疫细胞影响的实验研究

为了观察蟾酥注射液对小鼠的免疫细胞增殖及其分泌细胞因子的作用,采用中药免疫药理学方法,选择不同浓度的蟾酥注射液作为试验组,分别与小鼠的脾淋巴细胞以及LPS或者ConA共同孵育48 h,检测细胞增殖水平的变化;将蟾酥注射液与小鼠腹腔巨噬细胞共培养,检测蟾酥注射液对巨噬细胞吞噬中性红能力的影响;将蟾酥注射液与自然杀伤细胞共培养,检测蟾酥注射液对NK细胞杀伤能力的影响;取脾细胞与蟾酥注射液共培养上清,ELSIA法检测蟾酥注射液对几种重要的细胞因子（IFN-γ、IL-2、IL-12）分泌水平的变化。结果显示蟾酥注射液在一定剂量范围内单独或者协同非特异性丝裂原（Con A或LPS）作用能够显著增强小鼠脾淋巴细胞的增殖能力（P〈0.05或P〈0.01）;蟾酥注射液单独作用可以显著提高巨噬细胞吞噬中性红的能力;蟾酥注射液能够显著提高小鼠NK细胞对靶细胞的杀伤活性;同时蟾酥注射液能够显著增强小鼠脾淋巴细胞分泌Th1型细胞因子。说明蟾酥注射液在体外能够显著提高几种主要免疫细胞的增殖和功能,研究结果显示蟾酥注射具有显著的非特异性免疫增强作用。     

Protective Effects of Lycium ruthenicum Murr on Irradiated Mice

[Objective] To research the protective effects of Lycium ruthenicum Murr on irradiated mice. [Methods] Except normal control group,mice were radiated by X-Rays with the radiation dosage being 5 Gy. The RBC,WBC,PLT and HGB of mice were detected. The thymus and spleen indices were calculated. The antioxidase activity,DNA,caspase-3 and caspase-6 contents were detected. [Results] L. ruthenicum water extracts significantly enhanced the hemogram of irradiated mice,increased the SOD activity,improved DNA content,reduced the CAT,GSH-PX and T-AOC activities,and lowered the caspase-3 and caspase-6 contents. Viscera index showed no statistical significance.[Conclusions]L. ruthenicum water extracts had certain protective effects on irradiated mice.     

连翘酯苷对小鼠不同组织巨噬细胞功能的影响

目的 探讨连翘酯苷(FS)对小鼠不同组织巨噬细胞增殖和功能的影响。方法 取56只昆明系小鼠颈椎脱臼致死,无菌操作制备腹腔、骨髓和脾脏巨噬细胞,在体外细胞培养体系中分别加入不同浓度连翘酯苷（40、80、160mg.L-1）和脂多糖(LPS),通过MTT法检测细胞增殖,ELISA和Griess法分别检测细胞分泌TNF-α 和NO量,瑞氏-吉姆萨染色法测定腹腔巨噬细胞吞噬能力。结果 与LPS组比较,FS组腹腔巨噬细胞和LPS+FS组骨髓巨噬细胞吸光度A值极显著提高,但FS组脾脏和骨髓巨噬细胞以及LPS+FS组腹腔和脾脏巨噬细胞A值明显降低;此外,FS极显著提高环磷酰胺注射的小鼠脾脏和骨髓巨噬细胞增值但明显抑制腹腔巨噬细胞增殖。FS组不同组织巨噬细胞分泌TNF-α 量显著低于对照组和LPS组;FS明显增加LPS刺激的腹腔巨噬细胞NO分泌量,而脾脏巨噬细胞NO分泌量明显减少,且有显著剂量依赖性,骨髓巨噬细胞NO分泌量变化不明显;FS明显抑制环磷酰胺处理的小鼠脾脏和骨髓巨噬细胞分泌NO但不影响腹腔巨噬细胞分泌NO。FS提高了LPS刺激的腹腔巨噬细胞吞噬鸡红细胞能力。 结论 连翘酯苷对小鼠不同组织巨噬细胞增殖、TNF-α和NO分泌以及吞噬能力都有影响,这可能是连翘酯苷调节细胞免疫功能的机制之一。     

大豆异黄酮对奶牛脾脏与肠系淋巴结中淋巴细胞增殖的影响

为了研究大豆异黄酮对奶牛脾脏与肠系淋巴结中淋巴细胞增殖与活化的影响,并揭示大豆异黄酮提高奶牛免疫性能的作用机理。试验采用6×2（浓度×时间）实验设计,各浓度梯度的大豆异黄酮 (100.00、25.00、5.00、1.00、0.25、0.05 μg/mL)与淋巴细胞共育培养48 h和60 h后,用酶标仪在570 nm处测得各孔的OD值。结果表明：（1）添加0.05~25 μg/mL大豆异黄酮能够促进奶牛肠系淋巴结中淋巴细胞的增殖,在添加量为5 μg/mL时达到极显著的促进作用,但大豆异黄酮添加剂量达100 μg/mL时显著抑制肠系淋巴结淋巴细胞的增殖;（2）100 μg/mL和25 μg/mL大豆异黄酮添加组极显著抑制奶牛脾脏淋巴细胞的增殖(P<0.01),而1 μg/mL浓度组则显著促进奶牛脾脏淋巴细胞的增殖(P<0.05),其余各浓度组对奶牛脾脏淋巴细胞有抑制作用,但差异不显著。