Twenty-three diabetic patients with cerebral-thrombosis (DCT) and 16 cases without (D), 67 cases of nondiabetic cerebral thrombosis (CT), and 50 healthy subjects were investigated on the microcirculation of nailbed and conjunctiva with Model WX-7.53 microcirculation microscope. The results showed that all the patients had micro circulatory abnormality of nailbed, and,conjunctiva. The severity of microcirculatory abnormality was significantly different between these three groups of patients (P

本文介绍了北医大汉语失语成套测验（ABC）。根据10年失语症研究的经验总结出汉语失语症的主要类型及其鉴别论断要点，并根据复述、流利性、听理解及口头还是书面语言障碍这4个要素总结出鉴别各型汉语失语症的鉴别诊断流程图。指出失语症分型可为语言康复提供可靠依据，4个鉴别要素尚可提供大脑病灶定位信息。

It was introduced that the Aphasia Battery of Chinese (ABC), proposed by neurology department of Beijing Medical University. According to the experience of aphasia research for 1O years, we summarized the main types of Chinese aphasia and the differential diagnostic principles for them,and the differential diagnosis flow diagram of all major Chinese aphasia types was advanced according to the four principles-Ai repetition, fluency, auditory comprehension and oral or written language disorders. It was pointed out the classification of aphasia will provide the reliable basis for language rehabilitation and the four principles offer the information for localized lesions of brain.

Objective To delineate the changes in pattern and time course of semantic and phonological processing during Chinese language cognition study in patients with mild Alzheimer’s disease (AD) and mild cognitive impairment (MCI). Methods Patients with mild AD(n=32)and MCI (n=39) as well as normal controls (NC, n=40) matched with age, gender, level of education were enrolled in the study. Subjects completed Chinese compound word decision task applying both short and long stimulus onset asynchrony (SOA). Semantic, homophonic, semihomophonic and unrelated primes preceded the real words as well as nonwords targets. Subjects were asked to judge whether the targets were real words or nonwords. The reaction time and accuracy were recorded for each response. Semantic and phonological priming effects were analyzed by comparing the related primes versus unrelated primes. Analyses of variance (ANOVA) and t-test were conducted for reaction time and accuracy respectively. Results The mean reaction times of mild AD and MCI groups were prolonged (411 ms and 234 ms) for all types of priming in contrast with NC(P

In order to evaluate the effect of Token Test for comprehension ability of Chinese aphasia,33 aphasics with different types due to left hemispheric damages were conducted in this study of Token Test and Aphasia Battery in Chinese(ABC).The statistic analysis showed that the score of Token Test was significant correlated with the comprehension ability,word recognition and dictation of Chinese language,construction and visual-spatial function,praxia,calculation,attention and memory ability(P<0.01)and significant correlated with the severity of their aphasia(P<0.05).This study revealed that the score of Token Test was influenced by the type and the severity of Chinese aphasia especially the comprehension ability of speech and also influenced by attention,memory,praxia,visual-spatial function,cognition,etc.Token Test was a very sensitive test of measuring the comprehension ability for Chinese speech.

ObjectiveImpairment in auditory comprehension is one of the most common clinical symptoms of aphasia. Analysing the features of Chinese aphasics in auditory comprehension might be valueable to classify the types of aphasia, distinguish the difference between the Western aphasics and Chinese aphasics, and find out the neural mechanisms in the language processes in the brain. MethodsThe Standardized Aphasia Battery in Chinese and Additional Test of Auditory Comprehension were utilized, and the cerebral lesion of each case was demonstrated by CT scan or MRI. Results and Conclusions 1.Different types of aphasia indicate different damage grades in auditory comprehension impairment at each stage. 2. Posterior apasia and mixed aphasia indicate damages in the phonemic discrimination abilities. There are phonemic discrimination abilities preserved in Anterior aphasia and subcortical aphasia. 3. Anterior aphasia, posterior aphasia and mixed aphasia are at a different difficulty grades for lexical comprehension, especially for the discrimination to body parts. Subcortical aphasia doesn\'t demonstrate this feature that might be the characteristic in Chinese aphasics different from English aphasics. 4. The comprehension of the passive sentences is more difficult than that of the active sentences for all types of aphasics . 5. The damages are all severe in the story comprehension for all types of aphasics.

In order to study the type and cerebral location of agnosia in patients with cerebral vascular disease, 35 patients with single cerebral lesion determined by CT or MRI were checked. The standardized Aphasia Battery in Chinese and self designed tasks about agnosia were adopted. The results showed that there were object agnosia, picture agnosia, color agnosia, agnosia acalculia, auditory agnosia, tactile agnosia, neglect, environmental agnosia, body agnosia in left hemisphere group, and color agnosia, neglect, environmental agnosia, anosognosia in right group. The conclusions were that for the majority of dextrals, cerebral dominance for visual, auditory, tactile, body cognition all located in the left hemisphere. Color agnosia may happen in right hemisphere. Either hemisphere can produce neglect, anosognosia, and the incidence in right hemisphere is higher than in left one.

BACKGROUND: Memory impairment is the main manifestation of Alzheimer disease (AD) and mild cognitive impairment (MCI) conspicuous in the early stage. However, such patients very often develop attentional dysfunction, which may affect their normal work and daily life.OBJECTIVE: To investigate the attentional function, including continuous attention, selective attention and divided attention, of patients with mild AD and of those with MCI.DESIGN: A case-control study.SETTING: Department of neurology of a university hospital and department of psychology in a university.PARTICIPANTS: The research was completed in the Laboratory of Neuropsychology, the First Hospital of Peking University from November 2003 to January 2004. Totally 18 patients with mild AD and 19 with MCI were enrolled in this study, with 20 normal elderly subjects also included to serve as the normal control group.INTERVENTIONS: Several tests were designed to assess the attentional functions of all the subjects, including continuous performance task (CPT) test for assessing continuous attention, simplified Stroop test for selective attention, and dual task test for divided attention.MAIN OUTCOME MEASURES: The reaction time (RT) and the percentage of false response were recorded in CPT test and Stroop test, and performance decrement in dual task test was observed.RESULTS: In CPT test, the RT of mild AD patients was much longer, and the rates of missing and false responses were higher than those of normal control group [(539.29±103.86) vs (458.47±40.87) ms, 4.08% (3. 13, 13.64) vs0.91% (0.60, 1.90), and 1.51% (0.64, 2.54) vs 0.43% (0.37, 0. 84), respectively, P ＜ 0. 05]. The difference between MCI group and normal control group failed to reach statistical significance. The rate of missing response of all the three groups grow higher with the prolongation of time, with the highest occurring in the third 5 minutes of the test.More AD patients showed sustained attention deficiency after 10 minutes of test (33.33% within 10 minutes and 77.8% within 20 minutes). In Stroop test, all the three groups tended to make more false responses under incongruous condition[11.25% (7.50, 22.50), 2.50% ( -2.50, 5.00), 2.50% (0.00, 4. 38) ], exhibiting significant interference effect, which was the most obvious in mild AD group ( P ＜ 0.05). Patients with mild AD responded more slowly than MCI patients and normal control subjects [ (579. 19 ± 89.93) ms,(524.28 ± 68. 96) ms, (486. 75 ± 51.58) ms, respectively, P ＜ 0.05 ]. MCI group made more false responses than normal control group during the whole course of the test as well as under coincident and neutral conditions[5.83% (4. 17, 8.33) vs2.92% (1.67,3.96); 5.00% (2.50, 7.50) vs0.00% (0.00, 2.50); 5.00% (2.50, 10. 00) vs 2.50% (0.00, 5.00), P ＜ 0. 05]. In dual-task test, a significant decrement in mild AD patients was noted without statistical difference between MCI and normal control group[ 1.03 (0.49,3.75),0.46 (0.08, 1.02),0. 10 ( -0.25, 0. 64), P ＜0.05]. Within mild AD group, more patients showed deficiency in Stroop test and CPT test than in dual-task test (81.25%, 77.8%, and 29.41%, respectively).CONCLUSION: Patients with mild AD suffer impairment in continuous,selective and divided attentions, especially obvious in the former two attentional functions. MCI also impairs selective attention as compared with normal aged subjects, with the continuous and divided attention remaining normal. Mild AD patients, MCI patients and normal elderly subjects all show decreased continuous attention, and longer time (than 10 ninutes) of CPT may more sensitively identify continuous attention deficit.

40 human fetuses were used in this study. The range of fetal age varied from 3 months to full terms. All fetuses used were normal and their parents were healthy. The CFU-C from bone marrow, liver, spleen and peripheral blood were studied in vitro with agar culture technique modified by Metcalf.Experiments proved that the CFU-C of bone marrow may be observed in the fetuses in 3rd month, however, it increased rapidly in 4th month and maintained higher level until the end of fetal life. The progenitor cell population was detected at very high level in liver from 4th month to 6th month fetuses. The number of CFU-C of fetal liver were low in 7—10th month. The circulating progenitor cells in peripheral blood of 4, 5 and 6-month fetuses Were on high level but it was lower than that of liver and bone marrow.

Objective To determine whether the sustained,selective and diverted attention functions are affected in patients with mild Alzheimer's disease(AD).Methods Several tasks designed to test the attention functions on the computer were performed in patients with mild AD as well as elderly controls: Continuous Performance Task(CPT) for assessing sustained attention function,simplified Stroop task for selective attention function,dual task for diverted attention function.Results In CPT test,mild AD patients responded more slowly((539.29?103.86)ms vs(458.47?40.87)ms,P