免疫抑制的

Immunohistochemical localization of inhibin α-subunit in normal mature rats was carried out by using Strept Avidin-Biotin-Peroxidase Complex .The results showed that there was positive immunoreactivity of the McAb to inhibinα-subunit in heart ,kidney , spleen , lymph ,adrenal gland and pancreas cells. It indicated that inhibinα-subunit existed in the above tissues , But no positive sites were seen in hypothalamus, pituitary, lung and liver, that means they have no inhibinα-subunit. Compared with the ovariectomized rats, the hypothalamus and pituitary of the rats injected with inhibin-α fragment（1～32）showed an positive reaction, suggesting that inhibin α-subunit could pass through the blood-brain barrier .

用链霉亲和素-生物素-过氧化物酶(Strept Avidin-Biotin-Peroxidase Complex， SABC)免疫组织化学方法，以抑制素α亚基单克隆抗体对正常雌性性成熟大鼠各组织的抑制素α亚基进行定位观察，结果显示：⑴大鼠心脏、肾、脾、淋巴、肾上腺、胰腺均呈阳性反应，表明存在抑制素α亚基；下丘脑、垂体、肝脏和肺组织呈阴性反应，表明其不存在抑制素α亚基；⑵与去卵巢大鼠相比，外源注射抑制素α（1～32）片段的大鼠其下丘脑和垂体出现阳性反应，说明抑制素α亚基能通过血脑屏障。

In order to inhibit the variation and second variation of Trypanosome, a predominant VSG antigenic reservoir has been established by purification VSG from VAT, leading to a better immune protection and overcome immune failure due to antigenic variation.

我们设想提纯全部优势变异体 VSG，建立优势 VSG 抗原库，期望该抗原库能抑制虫体变异或抑制虫体的第二次变异，从而对动物起到较好的免疫保护作用，克服因抗原变异引起的免疫失败。

The pathological findings showed that ZBT could alliviate the synovial tissues inflammatory congestion, edema, remit the inflammatory cell infiltration and inhibit the proliferation of synovial cells, therefore reduce the degree of destruction of the articular cartilage and subcartilaginous bone tissue. Inhibited the disablement of the woulded limbs.

结果：止痹痛药酒能轻模型鼠关节肿胀度，对免疫注射后继发病变具有良好的治疗作用，说明该药具有抗炎免疫作用，病理学观察证实该药能减轻关节滑膜的充血水肿和炎细胞浸润、抑制滑膜细胞增生，减轻关节软骨和软骨下骨组织的破坏程度，抑制模型鼠患肢的致残。

The immunohistochemical study showed that haptoglobin protein was expressed in the whole layers of epidermal keratinocytes in the lesions of CA at a high level and stronger staining was seen in the stratum basale and stratum spinosum.

尖锐湿疣皮损中结合珠蛋白可能通过抑制朗格汉斯细胞的功能成熟和抑制角质形成细胞的免疫活性参与尖锐湿疣的局部免疫逃逸。

objective effects of plant tannins,chebulinic acid and tellimagrandin i on chemically induced hemoglobin synthesis in k562 cells were investigated.methods the hemoglobin synthesis situation was assayed with benzidine staining.erythroid antigens glycophorin a expression on the surface of k562 cells was labeled by direct immunofluorescence using fluorescein isothiocyanate-conjugated anti-gpa antibodies.then flow cytometric analysis was performed to detect gpa expression levels on surface of the cells.results both chebulinic acid and tellimagrandin i could inhibit the hemoglobin synthesis of butyric acid and hemin-treated k562 cells in a concentration-dependant manner.however,the ba-induced k562 cells were more sensitive to two tannins than heroin-induced cells.conclusion chebulinic acid and tellimagrandin i have inhibitory effect on the erythroid differentiation.

目的 研究可水解单宁诃子酸和特里马素i对氯化高铁血红素和丁酸钠诱导k562细胞红系分化的影响。方法四甲基偶氮噻唑蓝法分析诃子酸和特里马素i对k562细胞生长的影响，联苯胺染色法检测血红蛋白合成情况，应用免疫荧光和流式细胞术检测血型糖蛋白a在细胞表面的表达。结果诃子酸和特里马素i在0.04～0.09？mmol／l浓度下均可显著抑制k562细胞的生长增殖。2种单宁化合物(0.002～0.01？mmol／l)可显著抑制丁酸钠诱导的k562细胞血红蛋白合成，2种单宁化合物(0.01～0.05？mmol／l)还可显著抑制氯化高铁血红素诱导的血红蛋白合成，特里马素i(0.01？mmol／l)还抑制丁酸钠诱导的gpa在细胞表面表达。结论诃子酸和特里马素i对红系分化有抑制作用。

For immunized egg laying chicken groups, cloacal swabbing samples were collected at 7 days post challenge, and no shedding was found in groups vaccinated with rFPV-H5HA-I

结果表明，rFPV-H5HA- IL18、rFPV-H5HA-H7HA-IL18免疫组在攻毒后第7d无排毒，其抑制免疫鸡排毒效果优于常规疫苗和单独表达 HA的rFPV-H5HA重组鸡痘病毒。rFPV-H5HA-IL18和rFPV-H5HA-H7HA-IL18免疫组鸡，在14日龄时的体重明显高于rFPV-H5HA免疫组和常规疫苗对照免疫组，表明共表达的鸡IL-18能降低鸡痘病毒载体对雏鸡增重的影响。

By using immunohistochemical technology and image analysis system and laser confocal imaging system anlysis,the level of HBcAg endocellular expressed dropped down.

ELISA方法检测发现，核酶抑制HBeAg表达50%～65%，用免疫荧光、激光共聚焦分析，免疫组化等均证实核酶可抑制HBV细胞内的表达。

Results:(1) FSN can inhibit secondary joints swelling and multi-arthritis evidently, improve the whole condition of rats; at the same time, it can also lighten the synovial inflammation and hyperplasia of lesion joints distinctly, and prevent the joint cartilage and bone from destruction; the collective efficiency of FSN is better than TWP.(2) FSN can raise AA rats low LTT of spleen to normal nearly, remedy the disorder of Th / Ts and Thl / Th2 cells balance in peripheral blood, restrain exorbitant TNF- a ? IL-1 produced by PM O , thereof exert anti-inflammatory and immunoregulation effect.(3) Inside the lesion joints, FSN can depress abnormal hyper-expression of TNF- a mRNA and NF-kB in synovial tissues, as well as advance the expression of Caspase-3 (a proteolytic enzyme of apoptosis), reduce synovial immflamination and proliferation.(4) FSN can lower the expression of VEGF in synovial tissue,reduce neogenetic veins, so inhibit the growth of pannus tissue and the damage of cartilage and bone by that.(5) The above effect of FSN are in proportion to its dosage.Conclusions: FSN has inhibitory effects on symptom and condition of experimental RA, which is better than TWP as a whole.

结果：(1)FSN有明显的抗炎作用，可显著抑制AA大鼠足跖肿胀与多关节炎，改善大鼠的全身情况，同时明显减轻病变关节滑膜炎症与增生，防止关节软骨及骨质的破坏，其综合作用优于TWP；(2)FSN还能使AA大鼠低下的脾LTT恢复至接近正常，纠正外周血中T细胞亚群Th／Ts及Th1／Th2平衡紊乱，抑制大鼠PHφ过高的TNF-α、IL-1分泌，而发挥抗炎和免疫调节作用；(3)在病变关节局部，FSN能显著抑制AA大鼠滑膜细胞异常增高的TNF-αmRNA的表达，降低滑膜组织中NF-kB表达，并增加凋亡蛋白酶Caspase-3表达，从而抑制滑膜的炎症与增殖；(4)FSN还可下调滑膜组织中VEGF表达，减少血管新生，由此抑制血管翳的形成及其对软骨和软骨下骨的侵蚀；(5)FSN的上述作用皆呈现一定的量效依赖关系，高剂量组作用优于低剂量组。

Red cell membrane damnified by oxidation can be recovered with LSPC at 5.0 g/mL, the fluorescence polarization degree of the membrane was similar to normal level, indicate that increased anisotropic by membrane oxidation decreased with LSPC.2 Antioxidation Effect of LSPC on skinLSPC can improve body antioxidation ability by increasing the antioxidase synthesis and its activity in skin and serum.

半体内法测得LSPC能显著激活NK细胞活性。表明，LSPC对免疫功能有较强的调节作用。4莲房原花青素对酪氨酸酶及黑色素生物合成抑制作用初步研究 LsPC对黑色素的生物合成有显著的抑制作用。7.8 X10一49/L一5.09几LsPc对酪氨酸酶活力有抑制作用，其中，7.8 X1049/L一0.19/L时，随LsPC浓度增大抑制率下降；0.lg/L~4.og/L时，随着LSPC浓度增大抑制率逐渐增高，最大抑制率高达99.9%，且该抑制作用属于可逆的竞争性抑制。

RIG-I overexpression sensitizes hepatocellular carcinoma cells to the cell arrest and apoptosis induction by IFNalphaIn addition to the critical role in the antiviral response, IFNs can also regulate the immune response, induce cell growth inhibition and cell differentiation.

三、RIG-I增强肝癌细胞对干扰素免疫治疗敏感性的研究干扰素(Interferon， IFN)作为一种病毒抑制因子，不仅具有抗病毒作用，而且还具有免疫调节、抑制细胞增殖以及诱导细胞分化等作用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。