兔胆囊结石成石过程中脂代谢的变化及高密度脂蛋白制剂对其影响的研究

为研究高胆固醇膳食诱发兔胆囊胆固醇结石模型的脂代谢变化,以及高密度脂蛋白（ＨＤＬ）对其脂代谢及成石的影响,将动物随机分为对照组、高胆固醇膳食组及高胆固醇膳食＋ＨＤＬ注射组,观察各组血浆脂质、胆汁中胆固醇、血卵磷脂胆固醇酰基转移酶（ＬＣＡＴ）活性及血和胆汁中胆汁酸及成石率的变化。结果显示：动物体内胆固醇等脂质的消除障碍导致体内脂质的大量堆积以及清除紊乱,是高胆固醇膳食诱发兔胆囊结石脂代谢变化的主要特点,胆汁中胆固醇与胆汁酸的清除比例失调可能导致成石性胆汁形成;尽管外源性ＨＤＬ制剂能够升高血浆ＨＤＬ２－Ｃ／ＨＤＬ３－Ｃ的比值,增加ＬＣＡＴ的活性从而促使ＨＤＬ成熟,并能降低肝脏的胆固醇含量,但未能降低成石率。结果表明外源性ＨＤＬ制剂对兔胆囊结石形成中脂代谢有一定的影响,但抗成石作用不明显     

重组日本血吸虫SjGST-Sj32蛋白诱导小鼠保护性免疫的研究

应用基因工程技术分别表达出ＳｊＧＳＴＳｊ３２,Ｓｊ３２和ＳｊＧＳＴ,用于保护性免疫的动物实验及其体液免疫机制的初步探讨。结果：与对照组相比,重组ＳｊＧＳＴＳｊ３２组,Ｓｊ３２组,Ｓｊ３２＋ＳｊＧＳＴ组均有明显的减虫效果（Ｐ＜０．０５）。上述三组及ＳｊＧＳＴ组的肝脏虫卵计数均较对照组为少（Ｐ＜０．０１）。提示重组Ｓｊ３２ｋＤ蛋白可诱导小鼠产生明显的抗日本血吸虫攻击感染的保护性免疫及抗生殖免疫效果,而ＳｊＧＳＴ仅表现出一定的抗生殖免疫效果。     

大鼠纹状体边缘区神经元中乙酰胆碱激活的离子通道特性

用细胞贴附式膜片钳技术研究了急性分离的新生SD大鼠纹状体边缘区神经元中乙酰胆碱激活的离子通道的特性。发现通道有25PS和60PS两种电导状态,25PS通道为主要类型,因此,本文主要报道25PS通道的特性。ACh激活的单通道电流为快速内向电流,随着超极化程度增加而增加,反转电位约为0mV。通道开放具单个开放和簇状开放,其开放时间均可权指数拟和,单个开放时间常数为0．29ms和1.84ms,簇状开放时间常数为1．96ms和18.24ms。平均关闭时间也可双指数拟和,两个时间常数为1．70ms和54．00ms。通道开放概率为0．012,未表现出电压依赖性。提示纹状体边缘区神经元上存在乙酸胆碱受体离子通道。根据特性证实为烟碱型离子通道。     

国产环丙沙星注射液临床疗效的观察

目的 :评价国产环丙沙星注射液治疗下呼吸道、泌尿系及伤寒等细菌性感染的临床疗效、细菌学疗效和安全性。方法 :采用随机对照开放试验的方法 ,对国产环丙沙星注射液的临床疗效和细菌清除率进行了观察。结果 :国产环丙沙星注射液临床疗效有效率 84.0 % ,痊愈率 56.0 % ,与对照组头孢氨噻肟疗效一致 ,无显著性差异 ( P>0 .0 5)。国产环丙沙星注射液细菌清除率 76.9% ,与头孢氨噻肟比较疗效接近 ( P>0 .0 5) ,对肺炎克雷伯杆菌、大肠杆菌、变形杆菌、枸橼酸杆菌、伤寒杆菌及不动杆菌具有良好的清除作用 ,对铜绿假单胞菌亦有满意的抗菌活性。不良反应轻微 ,用药安全。结论 :国产环丙沙星注射液为广谱、高效、安全的抗菌药物 ,对不能耐受口服制剂者可避免胃肠道的直接刺激作用 ,对重症不能口服者提供了很好的给药途径     

春季结膜炎穹窿结膜的临床病理

证明春季结膜炎在穹窿结膜的临床病理。方法：详细记载球（角膜缘）、睑及穹窿结膜的临床表现;对３８眼（２１例）的穹窿结膜（上穹窿３４眼、下穹窿４眼）进行活检,组织切片ＨＥ染色,光学显微镜下观察病理改变。结果：结膜上皮不同程度增生,上皮下淋巴细胞、浆细胞浸润或胶元纤维增生,３８眼标本中３２眼有嗜酸性白细胞、１眼有嗜碱性白细胞浸润。一极轻病例双眼下穹窿结膜只有很少几个淋巴细胞,其中却散在个别嗜酸性白细胞。结论：春季结膜炎的临床病理改变包括穹窿结膜。     

Mechanisms of immunological eradication of a syngeneic guinea pig tumor. II. Effect of methotrexate treatment and T cell depletion of the recipient on adoptive immunity

The influence of methotrexate on the development of immunity to the line 10 hepatoma was studied in guinea pigs. Chronic methotrexate treatment had no apparent effect on the ability of immune guinea pigs to suppress the growth of inoculated tumor cells. In contrast, the same methotrexate regimen inhibited the development of tumor immunity if started before the 8th day after immunization with a vaccine containing viable line 10 cells admixed with Bacillus Calmette-Guérin (BCG) cell walls. Thus, methotrexate selectively inhibited the afferent limb of the immune response. In adoptive transfer experiments, methotrexate-treated recipient guinea pigs were capable of being passively sensitized with immune spleen cells, indicating that the primary cell-mediated immune response of the recipient was not required for adoptive immunity. The contribution of recipient T cells in adoptive immunity was further investigated in guinea pigs deleted of T cells by thymectomy, irradiation, and bone marrow reconstitution. Despite demonstrable deficiency in T lymphocyte reactions, "B" animals were fully capable of rejecting tumors after transfer of immune cells. These results suggest that the expression of adoptive immunity was independent of recipient T cell participation. In addition, sublethal irradiation of immune spleen cells prior to adoptive transfer abolished their efficacy. Proliferation of transferred immune cells in the recipient may be essential for expression of adoptive immunity.     

Studies on the luminescence of channels in rats and its law of changes with "syndromes" and treatment of acupuncture and moxibustion.

We previously reported the discovery of 14 channels in the human body, which possessed the biophysical property of high emission of light. In this study we found the same property on the Ren and Du channels in healthy rats. Additionally, we discovered that the luminance of the related channels in rat models with different "syndromes" varied greatly. For instance, a markedly low luminance appeared on the Du channel in animals with experimental syndrome of Yang deficiency induced by hydrocortisone; while in animals with experimental syndrome of blood deficiency caused by bleeding, an apparently low luminance occurred on the Ren channel. The intensity of the emitted light on Du and Ren channels increased after acupuncture treatment, but not significantly. This phenomenon conforms to the theory in traditional Chinese medicine that the Du channel is the "sea of Yang channels", while the Ren channel is the "sea of Yin channels".     

The effects of sphincteroplasty on manometric profile of common bile duct and the duodenum (author's transl)

A simultaneous manometric monitoring of the common bile duct (CBD) and the duodenum were performed 2 weeks after choledocholithotomy on 15 patients whose common bile ducts were explored without sphincteroplasty and 30 patients with sphincteroplasty. These manometric studies were carried out by open-tip catheters intubated into the CBD and duodenum through the T-tube at the operation. In patients without sphincteroplasty, no effects of the duodenal pressure on a CBD pressure profile were recognized, while a synchronized pressure profile of the CBD and the duodenum was obtained in patients with sphincteroplasty. By stimulation with morphine (Morphine sulfate; 0.17 mg/Kg iv bolus), waxing and waning of the pressured in the CBD without sphincteroplasty were observed with 20 cmH2O in maximum at about 13 minutes after injection. However, in the CBD with sphincteroplasty, scale-over increase of the pressure curve was seen immediately after duodenal contraction caused by morphine stimulation. A direct infusion of 5 ml of 0.1 N hydrochloride to the duodenum causes hyperperistalsis of the duodenum, which made a synchronized pressure profile in the CBD with sphincteroplasty but made no remarkable change in a pressure profile of the CBD without sphincteroplasty. These findings conclude that the sphincter of Oddi plays an important role as a "pressure barrier" between the CBD and the duodenum, and that with the destruction of this sphincter by sphincteroplasty, a pressure profile of the CBD becomes close to that of the duodenum. This simultaneous manometric study of the CBD and the duodenum might be one of most valuable methods for evaluation of completeness of the sphincteroplasty.     

石菖蒲配伍冰片对缺血再灌注脑损伤大鼠内皮素的影响

目的：探讨石菖蒲配伍冰片对大鼠抉血再灌注脑损伤内皮素的影响。方法：大鼠灌胃给药7d，造成脑缺血再灌注损伤模型，采用放射免疫法制定血浆和脑组织内皮素含量。结果：石菖蒲配伍冰片高、中剂量组脑组织内皮素含量明显下降，并显量效关系。结论：石菖蒲配伍冰片能够降低脑缺血再灌注大鼠脑组织中内皮素含量，发挥护脑醒脑之功效。     

辨证分期治疗慢性盆腔炎合并免疫性不孕症18例疗效观察

目的：探讨辨证分期治疗慢性盆腔炎合并免疫性不孕症的临床疗效。方法：选择慢性盆腔炎合并免疫性不孕症(血清抗精子抗体阳性)患者18例，采用辨证分期治疗。月经干净后，治以活血化瘀、理气祛湿为主；在(或相当于)排卵期或排卵后，治以补肾养血，活血化瘀为主；在经前期，治以理气活血调经为主；在月经干净后至经前期，加用小剂量阿司匹林。结果：盆腔炎临床症状及体征痊愈7例，显效6例，有效5例；全部患者获得妊娠，宫内妊娠者17例(观察至妊娠3月，均正常)，输卵管妊娠1例；结论：中医辨病辨证结合的周期疗法加小剂量阿司匹林治疗慢性盆腔灸合并免疫性不孕症有一定的疗效。