康泉合用地塞米松控制化疗所致的胃肠道反应

目的：比较康泉及康泉合用地塞米松预防急性白血病化疗所致的胃肠道反应的效果。方法：在同一方案的不同疗程，分别单用康泉或康泉合用地塞米松，随机对照，共观察１１０疗程。结果：康泉及康泉合用地塞米松对预防化疗所致急性呕吐有效率分别为６９．５％和９５．１％，有明显差异（Ｐ＜０．０１）；对于迟发性呕吐两组的有效率分别为７４．５５５％和９１．８３％，亦有明显差异。结论：康泉和地塞米松合用对控制急性和迟发性恶性呕吐优于康泉单用     

DermRx. An experiment in computerizing information on dermatologic therapy

The Task Force for Creating a Biomedical Communications System for Dermatology was commissioned by the American Academy of Dermatology to develop an experimental segment of a computerized data bank on dermatologic therapy. The Task Force has completed such a "first generation" system and has named it DermRx. Its data bank carries the following information on each entry: the name of the disease; topical, systemic, physical, and other kinds of treatment; caveats; references to the literature; and the date and reviewer(s). The DermLit and DermRx programs are two components of a projected broader concept of an eventual comprehensive Biomedical Communications System for Dermatology. Such a system is envisaged as a means of making available to dermatologists diverse data relevant to practice, teaching, research, and business aspects of the specialty. At the moment, access to the stored information on dermatologic literature and therapy is by telephone call to, or by correspondence with, the central computer facility at Northwestern University. Eventually it is projected to be accessible by dedicated microcomputers housed in the physician's office. This preliminary report on DermRx is presented to review the progress of the project to date and to elicit comment upon its structure and value.     

从金银花中提取绿原酸生产工艺的改进

目的：对金银花的提取工艺进行改进，以提高得率及降低溶剂消耗量。方法：首先用少量乙醇水溶液润湿金银花，然后加沸腾热水搅拌提取。结果：绿原酸得率为7．89％，浸膏中绿原酸含量为16．7％，均高于传统醇提及水提，但乙醇用量仅为醇提的6％。结论：新工艺对绿原酸的提取具有较大的应用价值。     

Electrochemical disinfection of marine bacteria attached on a plastic electrode

A plastic electrode, which consisted of graphite and silicone rubber, was employed for the electrochemical disinfection of attached marine bacteria, Vibrio alginolyticus. The viability of the bacteria attached on the electrode depended on the applied potential and time. Marine bacteria attached on a basal plane pyrolytic graphite electrode could be disinfected at potentials above 0.8 V vs. a saturated calomel electrode (SCE) applied for 20 min. The bacteria attached on a graphite—silicone electrode were disinfected at 1.0 V vs. SCE and 1.5 V vs. SCE, and 5.6 × 10³ cells/cm² of attached bacteria were disinfected to less than 5% of the initial number at times above 10 min. The residual chlorine concentration was less than the regulated value (0.02 ppm) and the pH value did not change after a potential of 1.5 V vs. SCE was applied to the graphite—silicone electrode for 30 min.     

C-Deoxyglucose mapping of the monkey brain during reaching to visual targets

The strategies used by the macaca monkey brain in controlling the performance of a reaching movement to a visual target have been studied by the quantitative autoradiographic ¹⁴C-DG method.Experiments on visually intact monkeys reaching to a visual target indicate that V1 and V2 convey visuomotor information to the cortex of the superior temporal and parietoccipital sulci which may encode the position of the moving forelimb, and to the cortex in the ventral part and lateral bank of the intraparietal sulcus which may encode the location of the visual target. The involvement of the medial bank of the intraparietal sulcus in proprioceptive guidance of movement is also suggested on the basis of the parallel metabolic effects estimated in this region and in the forelimb representations of the primary somatosensory and motor cortices. The network including the inferior postarcuate skeletomotor and prearcuate oculomotor cortical fields and the caudal periprincipal area 46 may participate in sensory-to-motor and oculomotor-to-skeletomotor transformations, in parallel with the medial and lateral intraparietal cortices.Experiments on split brain monkeys reaching to visual targets revealed that reaching is always controlled by the hemisphere contralateral to the moving forelimb whether it is visually intact or ‘blind'. Two supplementary mechanisms compensate for the ‘blindness' of the hemisphere controlling the moving forelimb. First, the information about the location of the target is derived from head and eye movements and is sent to the ‘blind' hemisphere via inferior parietal cortical areas, while the information about the forelimb position is derived from proprioceptive mechanisms and is sent via the somatosensory and superior parietal cortices. Second, the cerebellar hemispheric extensions of vermian lobules V, VI and VIII, ipsilateral to the moving forelimb, combine visual and oculomotor information about the target position, relayed by the ‘seeing' cerebral hemisphere, with sensorimotor information concerning cortical intended and peripheral actual movements of the forelimb, and then send this integrated information back to the motor cortex of the ‘blind' hemisphere, thus enabling it to guide the contralateral forelimb to the target.     

前列腺癌组织PTI-1基因mRNA的表达意义

目的：探讨前列腺癌诱导基因1(PTI-1)在前列腺癌及前列腺增生症组织中的表达及其意义．方法：采用逆转录聚合酶链反应(RT—PCR)检测21例前列腺癌组织、12例前列腺增生症组织及9例正常前列腺组织中PTI-1 mRNA．结果：21例前列腺癌组织中15例阳性表达，阳性率为71．4％；12例前列腺增生症组织及9例正常前列腺组织中无一例阳性表达．结论：RT-PCR检测PTI-1基因mRNA可作为诊断前列腺癌的一种新方法。