小鼠补体受体Ⅱ型基因改造后感染EB病毒

通过对小鼠补体受体Ⅱ型基因（CR2）进行定点突变,然后将野生型和突变型小鼠CR2/1（MCR2/1）及人CR2（hCR2)用电穿孔方法导入小鼠SP2/0进行表达,采用免疫组织化学等方法鉴定阳性细胞系。用EB病毒对转染阳性细胞进行感染,EBER-1杂交结果显示,仅转染hCR2和突变型MCR2（mtMCR2)的SP2/0细胞感染了EB病毒,前者感染EB病毒的阳性率较后者高很多。这为进一步研究EB病毒进入细胞的机制及建立EB病毒相关的鼻咽癌动物模型奠定了良好的基础。     

偏头痛患儿的大脑血流动力学变化

目的　研究偏头痛患儿的脑动脉血流动力学改变 ,探讨其在小儿偏头痛发生中的作用。方法　应用经颅多普勒 (TCD)技术 ,检测 90例 7～ 14岁头痛间歇期的偏头痛患儿和 80例健康同龄儿童脑动脉血管血流动力学指标。结果　 90例偏头痛患儿中脑动脉血流动力学异常者 77例 (86 % ) ,其中 6 0例 (6 7% )流速增快 ,9例 (10 % )减慢 ,与对照组相比 ,差异具有显著性 (P <0 0 1) ;90例中 2 3例 (2 6 % )存在双侧同名动脉血流速度不对称 ,其中伴有血流速度异常者15例 ,血流速度正常者 8例 ,差异具有显著性 (P <0 0 1)。结论　脑动脉血流动力学因素异常改变 ,在小儿偏头痛的发生中具有重要作用。尤其值得注意的是 ,双侧同名动脉流速不对称的改变 ,在小儿偏头痛的发生中同样可能起着重要的作用。     

三磷酸腺苷生物荧光液闪测定法检测活细胞计数

为建立一种检测活细胞数的方法,作者采用三磷酸腺苷(ATP)生物荧光液闪测定法检测小鼠纤维瘤细胞株L929.ATP标准曲线工作范围为10 -9～10-5mol/ml,相关系数r=0.9963(P＜0.001);当活细胞数在3×1 02～106个/ml时与发光计数值有良好的线性关系,r=0.9922(P＜0.001),变异系数 CV = 1%～3%.用ATP生物荧光液闪测定法检测活细胞数灵敏、简便、准确、重复性好,用液闪计数仪即可完成测定,有较大的实用价值.     

快速免疫治疗常年性变应性鼻炎

目的：探讨快速免疫治疗常年性变应性鼻炎的新方法及疗效。方法：３２例快速免疫组５天半达到维持量,持续治疗一年后评定。３６例常规免疫对照组治疗２年后评定。结果：快速免疫组一年总有效率 ８４． ４％,常规免疫组 ２年总有效率 ８８． ９％,两组疗效无显著性差异（ Ｐ＞０． ０５）。结论：快速免疫疗法减少了注射次数和缩短了疗程,为治疗常年性变应性鼻炎行之有效的方法。     

An adenosine triphosphate bioluminescence assay for detecting the number of living cells]

The method for detecting the number of living cells was studied. Using an adenosine triphosphate (ATP) bioluminescence assay, the present authors reported a perfect linear relationship between lg ATP concentrations and lg luminescence counts (r = 0.9963) as well as a relationship between lg number of cells and lg ATP luminescence counts (r = 0.9922). The detectable cells ranged from 10(2) to 10(6) cells/ml, the coefficients of variation 1-3%. This method is simple, accurate and sensitive and has a high reproducibility.     

烟雾吸入伤后肺泡上皮液体清除机能的变化及其意义

观察烟雾吸入伤后肺泡上皮液体清除功能的变化及其意义。方法 :Wistar大鼠 4 2只 ,随机分为正常对照组 (C组 )、烟雾致伤组 (I组 )、阿咪洛利组 (A组 )、哇巴因组 (O组 )、阿咪洛利加哇巴因组 (AO组 )和特普他林组 (T组 )。采用大鼠烟雾吸入伤模型。伤后 2 4h测定肺泡内液体清除率 (ALC)、总肺水量 (TLW )和肺血管外肺水量 (EVLW )。结果 :I组ALC降低 4 6.8% ,TLW和EVLW进一步增加 ;AO组ALC则降至最低点 ,TLW和EVLW升至最高点。而T组ALC明显增高 ,TLW和EVLW显著减少。ALC与TLW和EVLW之间显著相关。结论 :肺泡上皮液体清除功能障碍是烟雾吸入伤后早期肺水肿形成的因素之一。     

中药复方962对老龄大鼠皮质胆碱乙酰转移酶和乙酰胆碱酯酶活性的影响

为研究中药复方 962胶囊对老龄大鼠皮质胆碱乙酰转移酶 (ChAT)和乙酰胆碱酯酶 (AchE)活性的影响 ,将2 2月龄和 2 4月龄Wistar大鼠分为青年对照组、老年模型组、阳性对照脑复康组 ( 0 .56g/kg)、962中剂量组 ( 0 .9g/kg)和 962大剂量组 ( 1 .8g/kg) 5组 ,分别灌胃给药 1～ 2个月后处死大鼠。用Fonnun法和羟胺比色法分别测定 5组大鼠皮质的ChAT和AchE的活性。结果 :中药复方 962大剂量 ( 1 .8g/kg)对老龄大鼠皮质ChAT活性有提高作用 (P <0 .0 5) ,但对AchE无显著影响。提示 :中药复方 962可能通过影响老龄大鼠中枢胆碱能神经系统而改善其衰老的变化     

OVERVIEW FOR THE DIAGNOSIS AND TREATMENT OF GALLBLADDER CARCINOMA

Objective. To improve the recognition of diagnosis and treatment of gallbladder cancer. Methods. Retrospective analysis of 52 cases of gallbladder carcinoma in our hospital from 1988 to 1998. Results. Preoperative diagnostic rate was 90.3%, of which 12 cases (23%) were early stage of carcinoma. The total operation resection rate was 55.8%, for which only 17.8% were advance stage of carcinoma. Conclution. The early diagnosis is the key factor of increasing treatment successful rate. The following are the symptoms that raise our special attention to carcinoma of gallbladder: ( 1 ) Age over 50 have recurrent eholecysfitis and with past history of gallstone; (2) Congenital malformation of bile duct; (3) Local thickening and irregularity of gallbladder,gall; (4) Polypoid lesion larger than lem inside gallbladder; (5) Atrophic gallbladder; (6) Intraluminal stone of gallbladder does not move when change in body position; (7) Regional lymph node enlargement.     

Transcriptome analysis of Armillaria gallica 012 m in response to auxin

Gastrodia elata is an achlorophyllous and fully mycoheterotrophic orchid which obtains carbon and other nutrients from Armillaria species in its life cycle. Many researchers suggested that plant hormones, as signing molecules, play a central role in the plant–fungi interaction. In the process of Armillaria gallica 012 m cultivation, both exogenous indole-3-acetic acid (IAA) and indole-3-butyric acid (IBA) distinctly stimulated the growth of mycelia in solid media. The differential expression genes (DEGs) of A. gallica 012 m with IAA versus blank control (BK) and IBA versus BK were investigated. The results showed that more than 80% of DEGs of the IAA group were coincident with the DEGs of the IBA group, and more than half of upregulated DEGs and most of the downregulated DEGs of the IAA group coincided with those DEGs of the IBA group. Above research implied that A. gallica 012 m could perceive IAA and IBA, and possess similar responses and signaling pathways to IAA and IBA. The overlapping differential genes of the IAA group and IBA group were analyzed by GO term, and the results showed that several DEGs identified were related to biological processes including positive regulation of the biological process and biological process. The downregulated NmrA-like and FKBP_C genes might be benefit to the growth of mycelia. Those results can explain that exiguous IAA and IBA improved the growth of A. gallica to some extent. We speculate that IAA and IBA are signaling molecules, and regulate the expression of growth-related genes of A. gallica 012 m by the same signaling pathway.