1.Significance of hyperinteuse vessel signs on fluid-attenuated inversion recovery magnetic resonance imaging in patients with cerebral infarction
Hai YU ; Shaoqiang LIU ; Zufeng XIAO ; Yanwei LAI ; Xuhua HUANG
Chinese Journal of Neurology 2008;41(11):734-737
Objective To elucidate significance of hyperintense vessel signs(HVS)on FLAIR MRI in patients with cerebral infarction. Methods Two hundred and sixty-two patients with cerebral infarction admitted in our hospital were included in this study. We retrospectively defined HVS on FLAIR MRI in these patients in comparison with time of flight(TOF)on MR angiograms(MRA), hyperintense lesions on diffusion-weighted images(DWI). Results HVS on FLAIR MR[were identified in 117 patients with cerebral infarction(45.4%), of which 47 patients(83.9%)were obtained within 24 hours of symptom onset. HVS on FLAIR MRI were detected in 74 patients at sylvian fissure(62.2%), 11 at cortical sulci (9.2% ,11/119),34 at the posterior circulation regions(28.6% ,34/119). HVS on FLAIR MRI coincided well with ischemia of TOF on MRA and lesion patterns on DWI (χ2 test,P<0.01, respectively). Conclusion HVS on FLAIR MRI is helpful to evaluate abnormal major cerebral arteries of patients with cerebral infarction.
2.Extraordinary Vessels Needling for Vascular Dementia
Jin YU ; Xinsheng LAI ; Qiutang HUANG ; Yuanchun XIAO
Journal of Acupuncture and Tuina Science 2003;1(1):17-19
Purpose To observe the clinical efficacy of extraordinary vessels needling in treating vascular dementia. Method 39 cases vascular dementia were treated by acupoints selected from the eight extraordinary meridians and the time needling techniques such as eight methods of spiritual turtle, in accordance with time period and pattern identifition. Results 2 cases were cured, 30 cases improved and 7 cases failed; the total effective rate was 82.1%. Conclusion Extraordinary vessels needling has positive effects in treating vascular dementia.
3.Effect of Addition Nucleotides on Heparinase Production by Flavobacterium heparinum
Xiao-Lai MA ; Yu-Xiang GU ; Qin-Sheng YUAN ;
Microbiology 1992;0(05):-
The effect of addition nucleotides on heparinase production by Flavobacterium heparinum was reseached. The result indicated that addition of nucleotides cause different effects on heparinase production depend on its addi ng mode, single kind of nucleotide would restrain, but multiplex promote. The s trongest promotion happened when the propotion of nucleotides was consistent wit h the nucleic acids of heparinase mRNA. HPLC result confined the entrance of nu cleoides to the bactera cell. And it also suggested the synthesis metabolic of nucleic acids in F.heparinum was imbalance, there always be higher lever of purin nucleoides. L-Asp was added to medium culture to enhance pyridine nucle oides thynesis in order to improve the enzyme production ,which has been affecte d by the imbalance of nucleoides.
4.A novel HIF-1 inhibitor--manassantin A derivative LXY6099 inhibits tumor growth.
Fang-Fang LAI ; Xiao-Yu LIU ; Fei NIU ; Li-Wei LANG ; Ping XIE ; Xiao-Guang CHEN
Acta Pharmaceutica Sinica 2014;49(5):622-626
Hypoxia-inducible factor-1 (HIF-1) is a key transcription factor on hypoxia responses in mammalian tissues. HIF-1 plays as a positive factor in solid tumor and leads to hypoxia-driven responses that enhance its downstream gene expression for tumor growth and survival. LXY6099 was obtained by the structural modification and optimization of manassantin A (MA) as a high potent HIF-1 inhibitor. Antitumor activity of LXY6099 was observed in this study. LXY6099 with an IC50 value of 2.46 x 10(-10) mol x L(-1) showed more sensitive inhibition activity to HIF-1 than that of MA detected by reporter gene assay (> 100 folds). It showed strong inhibition on the growth of human solid tumor cell lines. Furthermore, LXY6099 exhibited significant antitumor activity against established human tumor xenografts in nu/nu mice with treatment of MX-1 breast cancer. Thus, LXY6099 as a novel HIF-1 inhibitor could be further developed into anti-cancer agents.
Animals
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Antineoplastic Agents
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pharmacology
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Breast Neoplasms
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metabolism
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Cell Line, Tumor
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Gene Expression Regulation, Neoplastic
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Heterografts
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Humans
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Hypoxia-Inducible Factor 1
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metabolism
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Lignans
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pharmacology
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Mice, Nude
5.Survey and research on peroxy acetic acid for lipid peroxidation and damage to DNA in human being.
Xiao-tao ZHOU ; Li-rui FAN ; Cui-lai JIA ; Yu-fang ZHONG ; Yu-guang CAO
Chinese Journal of Industrial Hygiene and Occupational Diseases 2006;24(5):286-287
Adult
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Comet Assay
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DNA Damage
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drug effects
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Female
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Humans
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Lipid Peroxidation
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drug effects
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Male
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Peracetic Acid
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toxicity
6.Effects of Moderate Hypothermia on Cerebral Energy Metabolism in Neonatal Rats with Hypoxic-Ischemic Brain Damage
YU LI-JUN ; WANG LAI-SHUAN ; SHAO XIAO-MEI ; YANG YI
Chinese Journal of Contemporary Pediatrics 2003;5(3):192-196
Objective To study the effects of moderate hypothermia on cerebral glucose and ATP contents andmitochondrial succinate dehydrogenase (SDH) activity in neonatal rats with hypoxic-ischimic brain damage (HIBD).Methods Seven-day-old Sprague-Dawley rat pups were subjected to ligation of the left carotid artery followed by exposureto hypoxia environment of 8 % O2 for 2 h, then they were randomly assigned into normothermic recovered group ( Ingroup) and moderate-hypothermic recovered group (IH group). The sham-operated rats which were used as the controlwere assigned into the normothermic control group (NC group) and moderate-hypothermic control group (HC group).The contents of glucose and ATP and activity of mitochondrial SDH were assayed at 0, 2, 6, 24, 48, 72 h after HIBD.Results The cerebal glucose contents in the IN and IH groups were significantly lower than those of the NC and Hcgroups 0 h after HIBD. Two hours after HIBD, the glucose content recovered to norhal level. The concentration of ATPand activity of SDH in the IN group decreased first, then they recovered gradually and reached a peak 72 hours afterHIBD. After 6 hours or 2 hours of HIBD, the ATP content or SDH activity of the brain in the IH group weresignificantly higher than those in the IN group. The ATP concentration was closely related to the SDH activity ( r =0.515, P <0.01). Conclusions Moderate hypothermia might protect brain tissue by inhibiting the decrease of SDHactivity and increasing the synthesis of ATP.
7.Effect of early rehabilitation of knee joint function on splintered fracture of tibial plateau after internal fixatin
Chinese Journal of Modern Nursing 2010;16(10):1150-1152
Objective To investigate the effects of early rehabilitation training(ERT) on Splintered fracture of tibial plateau after operation.Methods Sixty patients with splintered fracture of tibial plateau were divided into a rehabilitation group and a control group.All the patients were treated with internal fixation and the patients in the rehabilitation group were also accepted with ERT as an addition.Then the therapeutic effects were assessed with the Kolmert score.Results After the 3,6 and 12 months following,the therapeutic effects of the rehabilitation training group were much better than those of the control group(P<0.05)in terms of joint activity and excellent function.Conclusions The therapeutic effects of ERT for Splintered fracture of tibial plateau patients after operation can significantly improve patient knee movement and further improve functional recovery after curative effect.
8.A study on the prevalence of the urinary incontinence among female adults in Hangzhou and its effect on life quality
Guang-Hua LAI ; Xiao-Long HE ; Xiao ZHANG ; Ai-Fen WANG ; Qi-Qi YU
Journal of Preventive Medicine 2016;28(4):328-331
Objective Toinvestigatetheprevalenceofurinaryincontinenceanditseffectonlifequalityamongfemale adultsinHangzhou,andtoprovideevidencetothecontroloffemaleurinaryincontinence.Methods Aquestionnaire survey was performed in Gongshu and Xiacheng districts in Hangzhou from October 2013 to June 2014,and 4 563 women aged over 20 years were interviewed through a questionnaire including International Consultation on Incontinence Questionnaire Lower Urinary Tract,IQ-FLUTS and demographic information.Single and multi factor logistic regression analysiswereusedtoanalyzetheriskfactorsofurinaryincontinence.Results Atotalof4785questionnairesweresent, and 4 563 effective questionnaires were recovered,with a recovery rate of 95.4%.The prevalence of urinary incontinence was 33.5%(1 530/4 563),and female with older age tended to have a higher prevalence of UI(P<0.01).Among which stress urinary incontinence (SUI ),urge incontinence (UUI )and mixed urinary incontinence (MUI ) were accounted for 20.2%(922/4 563),3.0%(135/4 563)and 10.3%(473/4 563)respectively.UUI and MUI had a greater effect on quality of life.According to the multi factor logistic regression analysis,gravidity,age,constipation,pelvic surgery and fat (BMI>24)wereriskfactorsforurinaryincontinence(P<0.05).Conclusion Becauseofthehighprevalenceofurinary incontinence among female adults,more attention should be paid to urinary incontinence suffers in order to improve the quality of life of female adults.
9.Measuring volume and density of human organs and its significance in medicine and forensic medicine: lung.
Xiao-Jun YU ; Xiao-Ping LAI ; Yu-Bo FAN ; Wen YU ; Jin-Chuan LI ; Mao-Yang LIU
Journal of Forensic Medicine 2006;22(4):251-253
OBJECT:
To obtain values of normal human lung and diffuse pathological changes, in order to provide a simple and convenient diagnostic method for measuring human visceral organs in the autopsy of pathology and forensic pathology.
METHODS:
The exact mass, volume and density of normal and pathological lung were synchronously measured with the intelligentized volume-densimeter made by authors.
RESULTS:
The date-base about the volume and density of human lung with different races were established for anatomy, anthropology and biodynamics. In two cases of over-load in circulation and water toxicosis, the severe lung edema was proved with the scale of lung density, which was atypical edema in the lung tissue.
CONCLUSION
Measurement of visceral organs in the autopsy can assist to an integrative pathological diagnosis.
Adolescent
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Adult
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Age Factors
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Aged
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Aged, 80 and over
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Anthropometry/methods*
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Autopsy
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Child
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Child, Preschool
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Female
;
Forensic Medicine
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Humans
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Infant
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Infant, Newborn
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Lung/pathology*
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Male
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Middle Aged
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Organ Size
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Pulmonary Edema/pathology*
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Sex Factors
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Young Adult
10.Relation between expression of cerebral beta-APP in the chronic alcoholism rats and death caused by TSAH.
Lai WEI ; Huai-Cheng LEI ; Xiao-Jun YU ; Xiao-Ping LAI ; Hong QIAN ; Xiao-Hu XU ; Fang-Cheng ZHU
Journal of Forensic Medicine 2013;29(2):91-95
OBJECTIVE:
By observing the cerebral beta-amyloid precursor protein (beta-APP) expression in the chronic alcoholism rats with slight cerebral injury, to discuss the correlation of chronic alcoholism and death caused by traumatic subarachnoid haemorrhage (TSAH).
METHODS:
Sixty male SD rats were randomly divided into watering group, watering group with strike, alcoholism group and alcoholism group with strike. Among them, the alcohol was used for continuous 4 weeks in alcoholism groups and the concussion was made in groups with strike. In each group, HE staining and immunohistochemical staining of the cerebral tissues were done and the results were analyzed by the histopathologic image system.
RESULTS:
In watering group, there was no abnormal. In watering group with strike, mild neuronic congestion was found. In alcoholism group, vascular texture on cerebral surface was found. And the neurons arranged in disorder with dilated intercellular space. In alcoholism group with strike, diffuse congestion on cerebral surface was found. And there was TSAH with thick-layer patches around brainstem following irregular axonotmesis. The quantity of beta-APP IOD in alcoholism group was significantly higher in the frontal lobe, hippocampus, cerebellum, brainstem than those in watering group with strike and alcoholism group with strike.
CONCLUSION
The cerebral tissues with chronic alcoholism, due to the decreasing tolerance, could cause fatal TSAH and pathological changes in cerebral tissues of rats under slight cerebral injury.
Alcoholism/pathology*
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Amyloid beta-Protein Precursor/metabolism*
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Animals
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Brain/pathology*
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Brain Concussion/pathology*
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Disease Models, Animal
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Ethanol/adverse effects*
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Male
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Neurons/pathology*
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Random Allocation
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Rats
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Rats, Sprague-Dawley
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Subarachnoid Hemorrhage, Traumatic/pathology*