遥感技术在蚊虫孳生地监测中的应用

遥感技术作为一种快速、有效的监测工具,目前在国外已越来越多地应用于蚊虫调查和防治研究中。本文就遥感技术的原理、方法、以及在蚊虫研究中的应用作一概述,并对遥感在我国蚊虫研究的应用前景予以展望。     

实验性D—半乳糖诱发动物白内障造模的探讨

用D—半乳糖餵饲、腹腔及球后注射诱发白内障造模,经裂隙灯检查结果表示,30％D—半乳糖餵饲大鼠造模是一种简单有效的方法。     

慢性乙型肝炎表面抗原携带者前S1基因的高度异质性

应用半巢式聚合酶链式反应（ＰＣＲ）从一例慢性ＨＢｓＡｇ携带者血清中扩增出ＨＢＶ前Ｓ１基因，将其克隆于噬菌体Ｍ１３ｍｐ１９中进行序列分析。结果发现：与同源性最好的ＨＢＶａｄｒ野生林相比，所测的１０个克隆均有替代和插入突变，９个克隆有缺失突变，１０个克隆的核苷酸变异率为５．０％－１７．０％，氨基酸的变异率为１３．０－６０．０％；１０个克隆之间的核苷酸变异率为２．３％－２４．３％，氨基酸的变异率为１４．     

缺锌和补锌对运动大鼠锌营养状况的影响

通过建立大鼠缺锌模型，观察缺锌及补锌对游泳大鼠血清、肝脏锌含量和五种含锌金属酶活性的影响。结果表明：（１）血浆锌浓度和碱性磷酸酶（ＡＫＰ）活性是评价机体锌缺乏的灵敏指标；（２）血浆ＡＫＰ活性同时也是评价运动大鼠锌缺乏的较好指标，而血管紧张素Ｉ转换酶、酸性α－Ｄ－甘露糖苷酶５－核苷酸酶等不太理想；（３）运动时，缺锌大鼠血浆锌金属酶活性多数变化剧烈，表明机体内环境遭受较大破坏。而补锌后上述指标均接近正常水平，说明适量补锌有助于改善机体缺锌状况，维持机体内环境的稳定     

肘部尺神经半脱位的解剖学和流行病学研究

目的：研究肘部尺神经半脱位的发生原因及其临床意义。方法：对１００侧成人尸体肘部的尺神经位置进行解剖观察；在人群中随机调查了８５４位正常人肘部尺神经的位置。结果：肘管深度为７．１±０．１４ｍｍ（χ±ｓχ）。解剖观察发现，６侧肢体的尺神经在屈肘时发生半脱位，肘管深度平均为４．８ｍｍ。８５４位正常人肘部尺神经半脱位发生率为８．９％（７６／８５４）。结论：绝大多数的肘部尺神经半脱位是先天性的。肘部尺神经半脱位不一定是肘部尺神经卡压的发病原因。     

A study on various symptoms of chronic hepatitis treated with radix astragali and its regulative effect to levels of serum hormone

Sixty-seven cases of chronic hepatitis were treated with Radix Astragali. After treatment (2-month course), the clinical improvement rate in 38 cases of the Stagnation of the Liver-Qi and Deficiency of the Spleen type was 92.1%, and in 26 cases of the Deficiency of Liver Yin and Kidney Yin type was 88.5%, more effective than in the control group (P<0.05). The regulative effect to the levels of serum hormone was observed in the patients of the Stagnation of the Liver-Qi and Deficiency of the Spleen type treated with this medicine. The results showed that the levels of serum triiodothyronine, estradiol (female) and testosterone (male) were increased after treatment (1.40±1.38 ng/dl, 129.30±1.23 pg/ml and 496.24±1.47 ng/dl). Pre-treatment levels were 1.22±1.49 ng/dl, 104.60±1.45 pg/ml and 398. 17±1.55 ng/dl respectively (P<0.05); however, the level of serum prolactin (2.75±4.46 ng/ml) was lower after treatment than before treatment (3.20±3.82 ng/ml,P<0.05). No obvious changes were observed in the levels of serum follicle stimulating hormone, luteinizing hormone, thyroid stimulating hormone, thyroxine, triiodothyronine uptake ratio and cortisol after treatment.     

Pharmacokinetics of intravenously administered sodium dichloroacetate in rabbits

ＰｈａｒｍａｃｏｋｉｎｅｔｉｃｓｏｆｉｎｔｒａｖｅｎｏｕｓｌｙａｄｍｉｎｉｓｔｅｒｅｄｓｏｄｉｕｍｄｉｃｈｌｏｒｏａｃｅｔａｔｅｉｎｒａｂｂｉｔｓＧｕＢｉｎ（顾斌）；ＳｏｎｇＬｉｎｇ（宋岭）；ＪｉａｎｇＹｏｎｇｐｅｉ（蒋永培）；ＷｅｎＡｉｄｏｎｇ（文...     

Radioimmunoassay method for the detection of IgE antibodies specific to alcuronium

A radio-immunoassay (RIA) was used to screen for specific IgE to myorelaxants. Alcuronium was coupled to epoxy-activated Sepharose. Sixteen patients with anaphylaxis to alcuronium (n = 2), gallamine (n = 2) or suxamethonium (n = 12) were studied. The diagnosis was established by intradermal tests (ID), passive cutaneous anaphylaxis tests and human basophil degranulation tests. The amount of non specific label retained by Sepharose-ethanolamine (with sera of patients) and Sepharose-alcuronium (with sera of 11 control subjects) was estimated. The RIA was positive 10/16 (8/14 patients having reacted to a muscle relaxant other than alcuronium). The RIA seemed to be useful in the diagnosis of anaphylaxis to muscle relaxants. Drug-reactive antibodies were specific of the quaternary ammonium radical, which was the common allergenic determinant of all molecules of muscle relaxants. This test accounted for in vitro cross-reactivity, but had no predictive value for the clinical risk of crossed-anaphylaxis. This risk was best assessed by ID; it was positive in three cases. Although it was not possible to compare ID and RIA, the interpretation of which was different, both tests should be recommended for the detection of sensitivity to muscle relaxants.     

动物细胞培养过程中pH和溶氧的关联控制

本文通过对动物细胞培养过程中pH值和溶氧(DO)水平控制要求的分析,设计了用空气、氧气、氮气和二氮化碳四组气体关联控制pH值和DO水平的控制系统。该系统根据对瞬时pH值和DO值参数的检测,通过微处理机进行一系列的逻辑判断和具有PI调节规律的DDC增量词节计算,再经四气体关联互补计算和多重时序控制环节,综合调节四组气体电磁阀的相互开闭时间,实现对培养过程中pH值和DO水平的控制,满足动物细胞生长的需要。