白细胞介素6单克隆抗体的研制

采用纯化的工程菌表达产物白细胞介素６免疫ＢＡＬＢ／Ｃ小鼠,取小鼠脾细胞与骨髓瘤细胞（ＳＰ２／０）在ＰＥＧ作用下进行融合,通过ＥＬＩＳＡ筛选并多次亚克隆,获得了１株能分泌抗ＩＬ－６单克隆抗体的杂交瘤细胞Ｉｃ－１．３．４．５。Ｗｅｓｔｅｒｎ ｂｌｏｔ显示：抗体结合抗原的分子量与ＩＬ－６相符,为特异性抗ＩＬ－６抗体。亚类鉴定表明：该细胞分泌的单克隆抗体为ＩｇＧ１亚类,ｋａｐｐａ型。染色体数目为１００条左     

复脉抗衰注射液对不稳定型心绞痛患者内皮细胞保护作用的观察

目的：观察复脉抗衰注射液对不稳定型心绞痛（ＵＡ）患者内皮细胞的保护作用。方法：将６０例ＵＡ患者随机分为常规组和治疗组,治疗组在常规组治疗基础上加用复脉抗衰注射液。观察治疗前后２组患者血中各指标的变化。结果：治疗后,２组患者血栓素Ｂ２（ＴＸＢ２）水平明显降低,６酮前列腺素Ｆ１α（６ｋｅｔｏＰＧＦ１α）水平明显增高（Ｐ均＜０．０１）,但治疗组变化程度大于常规组（Ｐ均＜０．０１）;治疗组脂质过氧化物（ＬＰＯ）、遗传性假血友病第Ⅷ因子（ｖＷＦ）和纤维结合蛋白（Ｆｎ）水平均降低,超氧化物歧化酶（ＳＯＤ）水平增高（Ｐ均＜０．０１）,常规组ＬＰＯ、ＳＯＤ、ｖＷＦ和Ｆｎ则无显著变化（Ｐ均＞０．０５）。治疗前ＵＡ患者ＬＰＯ与ｖＷＦ呈直线相关（ｒ＝０．５２,Ｐ＜０．０１）,治疗后ＬＰＯ与ｖＷＦ降低值呈直线相关（ｒ＝０．７１,Ｐ＜０．０１）。结论：复脉抗衰注射液具有抗脂质过氧化反应,调整血栓素Ａ２／前列环素（ＴＸＡ２／ＰＧＩ２）比例平衡,保护血管内皮细胞及促进损伤血管内皮细胞修复的作用。     

低温体外循环心内直视术后体温的观察与护理

为探讨该类手术后患者体温变化的特点,作者将68例患者按不同手术类型分为3组,观察术后7d的体温变化情况。结果显示术后61例（89．7％）患者出现39℃以上高热,体温变化与手术类型无关。提示体外循环术后,体温短时间内变化较大,高热的原因除一般的吸收热外,与手术中低温、复温后体温反跳以及体外循环过程中产生的特殊物质有关。因此,针对不同情况采取及时有效的护理措施是极其重要的。     

Selective opioid δ agonists elicit antinociceptive supraspinal/spinal synergy in the rat

A multiplicative antinociceptive interaction of morphine activity at supraspinal and spinal sites has been clearly established and is thought to be responsible, in part, for the clinical utility of this compound in normal dose-ranges. While synergistic actions of μ-opioid receptor agonists have been shown, it is unclear whether a similar interaction exists for opioid agonists acting via δ-opioid receptors. Responses to acute nociception were determined with the 52°C hot plate, 52°C warm-water tail-flick and the Hargreaves paw-withdrawal tests. The peptidic opioid δ₁ agonist [ -Pen², -Pen⁵]enkephalin (DPDPE) or δ₂ agonist [ -Ala²,Glu⁴]deltorphin (DELT) were given into the rostral–ventral medulla (RVM), intrathecally (i.th.) or simultaneously into both the RVM and i.th. (1:1 fixed ratio). Both of the opioid δ agonists produced dose-dependent antinociception in all tests. With the exception of DPDPE in the hot plate test, isobolographic analysis revealed that the supraspinal/spinal antinociceptive interaction for both DPDPE and DELT were synergistic in all nociceptive tests. These data suggest that opioid δ agonists exert a multiplicative antinociceptive interaction between supraspinal and spinal sites to acute noxious stimuli and suggest possibility that compounds acting through δ-opioid receptors may have sufficient potency for eventual clinical application.     

Selective opioid delta agonists elicit antinociceptive supraspinal/spinal synergy in the rat.

A multiplicative antinociceptive interaction of morphine activity at supraspinal and spinal sites has been clearly established and is thought to be responsible, in part, for the clinical utility of this compound in normal dose-ranges. While synergistic actions of mu-opioid receptor agonists have been shown, it is unclear whether a similar interaction exists for opioid agonists acting via delta-opioid receptors. Responses to acute nociception were determined with the 52 degrees C hot plate, 52 degrees C warm-water tail-flick and the Hargreaves paw-withdrawal tests. The peptidic opioid delta(1) agonist [D-Pen(2),D-Pen(5)]enkephalin (DPDPE) or delta(2) agonist [D-Ala(2),Glu(4)]deltorphin (DELT) were given into the rostral-ventral medulla (RVM), intrathecally (i.th.) or simultaneously into both the RVM and i.th. (1:1 fixed ratio). Both of the opioid delta agonists produced dose-dependent antinociception in all tests. With the exception of DPDPE in the hot plate test, isobolographic analysis revealed that the supraspinal/spinal antinociceptive interaction for both DPDPE and DELT were synergistic in all nociceptive tests. These data suggest that opioid delta agonists exert a multiplicative antinociceptive interaction between supraspinal and spinal sites to acute noxious stimuli and suggest possibility that compounds acting through delta-opioid receptors may have sufficient potency for eventual clinical application.     

肺泡表面活性物质对豚鼠迷走神经性肺损伤的治疗作用

目的 观察气管内滴性注表面活性物质（ＰＳ）,对豚鼠双侧颈迷走神经切断性肺损伤的治疗作用。方法 ２４只豚鼠于颈部第一气管水平笔双侧颈迷走神经切断术,吸空气ＰａＯ２〈８ｋＰａ时改吸纯氧,至ＰａＯ２〈２０ｋＰａ时,随机将动物分成三组,（１）表面活性物质治疗组（ＰＳ组）：经气管内滴注从新鲜猪肺灌洗液中提取的ＰＳ（５０ｍｇ／ｍｌ、１００ｍｇ／ｋｇ）混悬液;（２）生理盐水治疗组（ＮＳ组）：经气管内滴注同体积生     

二硫化碳致作业女工早期胚胎损伤剂量反应关系的探讨

目的　探讨女工二硫化碳 (CS2 )接触水平与胚胎早期发育障碍之间的剂量—反应关系。方法　前瞻观察欲生育女工妊娠所需的月经周期数 ;收集每个月经周期胚胎植入期尿样 ,检测绒毛膜促性腺激素含量 ;监测女工作业地点CS2 浓度。结果　①接触组女工各月经周期妊娠机率低于对照组 ,时间妊娠率随接触水平 (孕时CS2 接触浓度乘以CS2 接触工龄 )升高而降低 :妊娠率 =0 70 3 3 -0 0 0 15×接触水平 ( χ2 =64 71,P =0 .0 0 0 ;r =-0 .979,P =0 .0 0 0 ) ;②检测 3 4 0个月经周期尿样的早早孕丢失率 ,接触组明显高于对照组 ,且随接触水平升高而增加 :丢失率 =0 4717 0 0 0 2 8×接触水平 ( χ2 =2 5 .5 9,P =0 .0 0 1,r =0 .977,P =0 0 0 0 )。结论　随着接触水平的增高 ,早早孕丢失率明显增加 ;每个月经周期妊娠率降低 ,均呈现出明显的剂量—反应关系 ,表明CS2 对胚胎早期发育的损伤作用具有蓄积性     

盐碱地麻黄种植试验研究初报

在盐碱地上进行麻黄种植试验,０－３０ｃｍ土壤全盐量１．２％时,麻黄生长良好,全盐量１．６％以上时生长受抑制。中度盐碱地种植麻黄是可行的。     

烯二炔类抗肿瘤抗生素全合成研究Ⅲ.十元环状烯二炔单元开链衍生物的合成

以环戊酮为原料,经七步反应,得到十元环状烯二炔单元开链衍生物,为进一步合成十元环状烯二炔类化合物打下基础.本文中共合成了6个新化合物,其结构均经1H-NMR谱和质谱确证.     

外伤性左半结肠破裂一期吻合11例

目的 探讨外伤性左半结肠破裂一期手术的术式选择。方法 采用经阑尾残端的术中结肠清洁灌洗、回肠造瘘。根据结肠破裂情况作闰修补或切除破裂肠段一期吻合。结果 １１例手术吻合全部一期愈合,２例切口感染。结论 只要病例选择正确,术中处理得当,外伤性左半结肠破裂作一期手术吻合是可行的。