The systematic teaching does better to help students master and use what they have learned, and it will be good for avoidance of repeated contents and shortening teaching time. It can also help students find more interest in studying neurology.

AIM: Tongxinluo had showed effects of inducing proliferation and differentiation on neural stem cells in previous observations on animal models. The experiment would investigate the time-effect and dose-effect relationship of Tongxinluo on neurocyte lineage development from rat embryonic neural stem cells (NSCs). METHODS: Experiments were performed at the Laboratory of Functional Science of Southern Medical University from June to October 2007. ①Pregnant rats of 12-14 days were provided by Experimental Animal Center of Southern Medical University. The experiment was performed in strict compliance with all standards for ethics. Tongxinluo contained ginseng, leech, scorpion, ground beetle, centipede, pellicula cicadae, red peony root, borneol and so on. Tongxinluo was produced by Shijiazhuang Yiling Pharmaceutical Co., Ltd., No. Z19980015. Preparation of serum containing Tongxinluo: 1 g/kg per day Tongxinluo suspension was given by lavage in rats of high-dose Tongxinluo group, and 0.5 g/kg per day in rats of low-dose Tongxinluo group. 7 days later, sera were extracted from all the rats and sterilized with filtrating, followed by separate-loading and cryopreservation at –70 ℃. ②NSCs cultured were separated from 12th-14th day SD rat embryo. The third passage of cells was treated with serum containing Tongxinluo in the high-dose and low-dose Tongxinluo group. Rats were treated with common serum as a control. ③Proportion of various kinds of nerve cells was observed by immunofluorescence staining at days 1, 3 and 7. RESULTS: ①At day 1, there was few cells labeled with 5-bromodeoxyuridine (BrdU) (+) and glial fibrillary acidic protein (GFAP) (+) in high-dose Tongxinluo group, with rest cells all labeled with BrdU (+) and Nestin (+). While in low-dose Tongxinluo group and control group, all cells were BrdU(+)Nestin(+). ②At day 3, the ratios of cells labeled with Nestin (+), ?tubulin (+) or GFAP (+) differentiated with each other (P 0.05). ③The ratios of NSCs labeled with nestin (+) decreased soon after administered Tongxinluo, and increased after that. The ratios of ?tubulin (+) cells increased in the high-dose Tongxinluo group while increased firstly then decreased in the low-dose Tongxinluo group and control group. The ratios of GFAP (+) cells increased in the low-dose Tongxinluo group and control group while increased firstly then decreased in the high-dose Tongxinluo group. The ratios of GalC (+) cells had no remarkable change in the high-dose and low-dose Tongxinluo group, but increased significantly at day 7 in the control group. CONCLUSION: Tongxinluo may induce proliferation and neuronal differentiation of rat embryonic NSCs with time-effect and dose-effect relationship. The more Tongxinluo is administered, the more significant and permanent effects will be achieved.

ObjectiveTo investigate the clinical features of Chinese dysgraphia and then probe into its mechanisms in a patient with semantic dementia(SD).MethodsThe patient with SD finished the writing part of the Aphasia Battery of Chinese (Aphasia Battery of Chinese,ABC) and the Chinese agraphia battery (Chinese agraphia battery,CAB ) in addition to a series of other neuropsychological tests.Results( 1 ) On the Wechsler Adult intelligence scale,the patient performed poorly on information and vocabulary with scores of 6/29 and 8/80,respectively.He spoke out only 11 names totally on the category fluency test within 1 minute,while 25 names or more than were normal.Semantic features test showed he made 37 right answers of 60 questions,with scores of 8/20 on category,7/20 on function and 8/20 on nature features.(2)The writing disorder exhibited Chinese aphasia agraphia with obvious difficulty in forming characters,wrong characters of the same pronunciation or the same form or unrelated errors,and grammatical impairments.Its damage from serious to light occurred in picture writing( 6/40),writing sentences to convey meaning(1/10),dictation(11/40) and automatic writing(35/40).The transcription was relatively preserved (40/40 ). (3)He scored 20 and 19 points on MMSE and MoCA.Executive function was damaged significantly,while recent memory was preserved relatively.ConclusionThe patient with SD shows an impoverished store of general knowledge and poor comprehension of single-word.The nature of SD's dysgraphia presents Chinese aphasia agraphia,undoubtedly due to progressive deterioration in semantic memory.More importantly,its error types and distribution show apparent discrepancy from that of alphabetic script.Presumably because Chinese writing system is logographic in nature and the pathway of comprehension concerning syllable-orthography-morphemes mapping,while alphabetic writing system follows a principle of mapping graphemes on-to phonemes and letters themselves dont stand for any meaning.

Objective To analyze the activity of the vastus medialis (VM) and vastus lateralis (VL) muscles in the dynamic stabilization of the patella in patients with patellofemoral pain (PFPS) using standard surface electromyographic (sEMG) tests.Methods This comparative study involved 7 patients with PFPS (13 knees) and 10 healthy subjects (20 knees).They performed weight-bearing squat movements,and sEMG was employed to measure the mean amplitude and the time before peak (TBP) of their VM and VL muscles.Results There was no significant difference between the two groups in the ratio of the mean amplitudes of the VM and VL muscles.However,the ratio in both groups in squatting was significantly higher than when simply standing.In the PFPS group the average TBP delay of the VM relative to the TBP of the VL was significantly longer than in the control group during squat movements.Conclusions The delay in the TBP of the VM relative to the VL during squat movements could serve as a standardized test for assessing treatment effect in patients with local factor PFPS.

Objective To evaluate the influence of infusing salviate milttionrrhize via portal vein on the pressure of portal vein of cirrhotic patients(FPP).Methods 46 patients of fiver cirrhosis were included this stuby.All cases were pierced with guiding of ultrasound tape B a tube with locks into a branch of portal vein and their FPP was measured.Then 20ml salviate milttionrrhize mixed with 250ml glucose was infused via portal vein once daily for 2 weeks and measure FPP after the treatment.Results FPP declined a value from 8cm H2O(1 cm H2O=0.098 kPa)t026CnlH20.(P＜0.05).Conclusion The infusion of salviate milttionrrhize via portal vein can effectively decline FPP.

Objective To explore clinical effect of Dermatix Ultra on repair of scar tissue in patients after breast plastic surgery .Methods 66 patients with breast conserving surgery after breast conserving surgery were selected and divided into two groups.32 cases in the control group were treated with the implementation of breast conserving surgery and breast plastic surgery , 34 cases in the treatment group were treated on the basis of the control group and combined with Dermatix Ultra.Evaluation of patient and observer scar assessment scale ( POSAS ) and visual analogue scale were compared after the treatment and satisfaction degree were compared after 6 months follow-up.Results Compared with the control group, scar evaluation in treatment group were higher(P<0.05), the color, thickness, the degree of pigmentation and the score of the pigment were higher (P<0.05), the color, softness, thickness, pain and itching were higher (P<0.05), and the patients were followed up for 6 months (P<0.05).The color, thickness, roughness and pigmentation score of OSAS in the treatment group were higher (P<0.05), Color, softness, thickness, pain and pruritus in PSAS were higher (P<0.05),after 6 months of follow-up, the satisfaction rate in patients was higher (P<0.05).Conclusion Dermatix Ultra has a good clinical effect in repair of scar tissue after the breast plastic surgery, improve the color, thickness, smoothness and pigmentation of patients after breast augmentation surgery, and improve the prognosis.

Neurology is one of the most difficult subjects in clinical medical education.How to improve the teaching model of neurology is a crucial problem.The systematic instructional design and problem-based learning (PBL) emerge as mature teaching techniques,and having a broad application prospect.However,simple PBL teaching model has not achieved the desired results,because PBL teaching method pays excessive attention to the subjective initiative of students,but ignores the supervision and assessment mechanisms,such as assessment,feedback,adjustment,which are the major concerns of systematic instructional design.This research tries to combine systematic instructional design with PBL teaching model,and explore the position in neurology teaching.By determining the teaching target,analysis of PBL teaching,writing teaching plans,organization of PBL teaching,feedback to adjust teaching design method,the final summative evaluation is done and the teaching,was completed.After practice tips may bring progress on neurology teaching mode.

Objective To investigate the application value of the ultrasonic elastic tissue dispersion quantitative analysis technique in different stages of subacute thyroiditis (SAT).Methods One hundred and forty-four SAT lesions detected from 81 patients were enrolled in the patient group.They were further divided into three subgroups,including acute group (group Ⅰ),medium group (group Ⅱ) and recovery group (group Ⅲ).Another 59 healthy volunteers were collected as control group.All the participants accepted conventional ultrasound and elastographic examinations.Eleven parameters were obtained by the tissue dispersion quantitative analysis software.These parameters were compared between groups and among subgroups by ANOVA.The correlation between all the parameters and the course of SAT were analyzed by Spearman and Multiple linear regression methods.Results Between groups and among subgroups,the complexity (COMP) and correlation (CORR) were not statistically different(all P ＞0.05).Differences of kurtosis (KURT) and angular secon moment (ASM) among the three subgroups were not significant (all P ＞0.05).Differences between groups and among subgroups were significantly different among the value of all the other seven indexes (all P ＜0.01).Moreover,they were all correlated with the clinical staging,with the highest coefficient in area ration of low-strain region (％ AREA)(r =-0.881).Regression model was constructed and only ％ AREA was selected into the regression equation.ROC curves were constructed to estimate the clinic value of ％ AREA in staging patients of SAT,the areas under ROC curves were0.986(group Ⅰ vs group Ⅱ-Ⅲ) and 0.988 (group Ⅰ-Ⅱ vs group Ⅲ[) for ％AREA,respectively.Conclusions The tissue dispersion quantitative analysis technique is helpful in estimating the stiffness of thyroid in patients with SAT.

Neurons,the basic unit of nervous system,are highly polarized cells with unique physiological functions.Mitochondrial dynamics are critical to neurons,involving fission and fusion,transport and distribution,synthesis and degradation.Mitochondrial transport helps maintain local energy supply.Mitochondrial long-distance movements are facilitated by their coupling to microtubule-based transport via the transport complex.The core component of this complex is mitochondrial Rho GTPases Miro.In this review,we focus on the Miro's role in mediating mitochondrial transport in neurons and its relation to neurological diseases.