1.Adenosine triphosphatase mechanism of calcium overload in vascular smooth muscle cell in hemorrhagic shock rats
Qisheng JIANG ; Deyao HU ; Nan XIAO
Chinese Journal of Trauma 1993;0(06):-
Objective To explore the mechanism of adenosine triphosphatase (ATPase) of calcium overload in vascular smooth muscle cell (VSMC) in hemorrhagic shock rats. Methods Twenty-four male Wistar rats were randomly divide into four groups: control (Group C), shock start (Group S0), 2 hours post-shock (Group S2) and 4 hours post-shock (Group S4). The rat models with hemorrhage shock were produced by means of modified Wigger's method through bloodletting from femoral artery and keeping blood pressure at 40 mm Hg for 2 hours. The changes of cytosolic free Ca 2+ concentration (i) and the activities of Ca 2+ - ATPase and Na +-K +- ATPase in VSMC membrane and mitochondrial membrane were monitored in rats after shock. Results Mean channel fluorescence values of VSMC i in the Groups C, SO, S2 and S4 were 2.03?0.15, 2.37? 0.32 , 2.55?0.46 and 2.80?0.43 respectively and increased in a time-dependent fashion. Mean channel fluorescence values of VSMC i in the Groups S0, S2 and S4 was significantly higher than that in the Group C ( P
2.Expression of silence information regulator 1 (Sirt1) in B cells in peripheral venous blood of subacute cutaneous lupus erythematosus
Nan HU ; Qing LI ; Zhiping XIAO ; Qin QIN ; Cuie KUANG
Journal of Chinese Physician 2015;17(12):1836-1838
Objective To investigate alterations in epigenetic regulation in B cells in subacute cutaneous lupus erythematosus (SCLE).Methods Peripheral blood mononuclear cells (PBMC) were isolated from the peripheral venous blood of SCLE patients and healthy donors with density gradient centrifugation.B cells were isolated with CD19 micro beads and protocols provided by the manufacturer.Total RNAs were isolated with RNA kits.The expressions of silence information regulator 1 (Sirt1) mRNA were investigated with quantitative real time polymerase chain reaction (PCR).Results The levels of Sirt1 mRNA were significantly increased in SCLE B cells relative to healthy controls (P < 0.01).Conclusions Histone modifications appear abnormal in B cells in SCLE.
3.Study on Evaluation of the Scientific Research Performance of Provincial Key Disciplines in a Medical University
Nan HU ; Yuping XIAO ; Peng ZHANG ; Lei YAN
Chinese Journal of Medical Science Research Management 2015;28(1):80-84
Objective This article was aimed to take exploratory evaluation on the scientific research performance of provincial key disciplines in a medical university,and to provide a scientific basis for the discipline evaluation related topics.Methods This paper took 29 provincial key disciplines in a medical university as the evaluation system.We calculated the scientific research performance of key disciplines.Data envelopment analysis (DEA) method was used to evaluate the scientific level of performance,while the use of TOPSIS and gray correlation analysis method to rank the efficiency of its research,and the results obtained by the three methods was used for statistical correlation analysis.Results According to the results calculated by DEA Method,there were 18 DEA efficient units and 11 non-DEA efficient units.While in this 11 non-DEA efficient units,8 of them needed to reduce re source inputs and the other 3 units needed to increase research outputs.Meanwhile there were significant positive correlations between evaluation results of TOPSIS Method andGrey Correlation Analysis Method with Data Envelopment Analysis Method,respectively [the correlation coefficient:rs 1 =0.797(P =0.000); rs 2=0.583(P =0.007); rs 3-0.536(P =0.003)].Conclusions Compared to TOPSIS Method and Grey Correlation Analysis Method,DEA Method not only could evaluate the ef fectiveness of discipline,but also provide evidence to improve the non-DEA efficient units.
4.Metabolomics analysis revealing multiple compounds changed in rhubarb after processing.
Nan ZHAO ; Xiao-Zhe ZHANG ; Chang-Jiang HU ; Tian-Zhu JIA ; Hong-Bin XIAO
China Journal of Chinese Materia Medica 2014;39(9):1607-1613
Untargeted metabolomics analysis of rhubarb and stewed rhubarb samples shows that the determined samples clearly clustered in to two groups, indicating that the processing procedures caused changes in the composition and/or content of components in rhubarb. Ten components were identified by UHPLC-Q-TOF-MS/MS and references, which intensity declined in rhubarb after processing. Targeted metabolomics analysis of rhubarb and stewed rhubarb samples indicated that aloe-emodin, rhein, emodin and physcion were detected with lower intensity in stewed rhubarb samples than in rhubarb samples. Metabolomics analysis of rhubarb and stewed rhubarb indicated the various components of rhubarb changed after processing.
Anthraquinones
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analysis
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Chromatography, High Pressure Liquid
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Emodin
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analogs & derivatives
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analysis
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Food Handling
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methods
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Food Preservation
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methods
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Metabolomics
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methods
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Multivariate Analysis
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Principal Component Analysis
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Rheum
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chemistry
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metabolism
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Tandem Mass Spectrometry
5.Correction of secondary lip whistle deformities and nasal base depression after bilateral cleft lip repair with lip subdermal soft tissue flap.
Xiao-Chen TIAN ; Xiao-Jie LÜ ; Xiao-Chun HU ; Jun-Nan CHEN ; Li-Long CUI ; Ying LIU ; Hui-Na LIU
Chinese Journal of Plastic Surgery 2013;29(3):164-167
OBJECTIVETo explore a new method to correct secondary lip whistle deformities and nasal base depression after bilateral complete cleft lip (BCCL) repair with lip subdermal soft tissue flap.
METHODSBilateral subdermal soft tissue "C" flaps and "lambda" flap were designed to repair secondary deformities of nasal base and reconstruct vermilion tubercle in patients after BCCL repair.
RESULTSGood results were achieved in all the patients with primary healing. No flap necrosis happened. The result was satisfactory.
CONCLUSIONSWith bilateral subdermal soft tissue "C" flaps and " lambda" flap, nasal base depression deformities and lip whistle deformities can be corrected. It is an ideal method for correction of deformities after BCCL repair.
Cleft Lip ; surgery ; Humans ; Lip ; surgery ; Nose ; Nose Deformities, Acquired ; surgery ; Reconstructive Surgical Procedures ; Surgical Flaps ; Treatment Outcome ; Wound Healing
6.A mini review: Tau transgenic mouse models and olfactory dysfunction in Alzheimer's Disease.
Yang HU ; Wen-ting DING ; Xiao-nan ZHU ; Xue-lan WANG
Chinese Journal of Applied Physiology 2015;31(6):481-490
Alzheimer's Disease (AD) is a chronic neurodegenerative disease that usually takes many years from preclinical phase to prodromal phase characterized by mild symptoms before the onset of dementia. Once diagnosed with AD, the brain is already severely damaged and the disease will process quickly to the most severe stages since there is no medications that reverse the neuronal injuries in the brain. Thus, simple, inexpensive, and widely available methods for detecting potential AD patients during their preclinical phases are urgently needed. In such case, olfactory testing may offer a chance for early diagnosis of AD. However, there are limitations in these olfactory tests due to the complexity of the brain areas it extends to and the frequently olfactory fatigue occurred in the behavioral olfactory tests. Great efforts have been done epidemiologically to investigate the correlation between olfactory functions and possibility of developing AD. Different patterns of olfactory dysfunction have been found in AD at early stages and even mild cognitive impairment (MIC), but the cause of the dysfunction remained unclear. Various kinds of AD animal models have been used in the field to clarify the existence of olfactory dysfunctions and thus study the underling mechanism of the dysfunction. In this review we discuss (1) the function of Tau physiologically and pathologically; (2) the genetic background and biological characteristics of the most commonly used Tau transgenic mice; (3) the structural and molecule basis of olfaction; (4) the possible relationship between Tau pathology and olfactory dysfunction. Finally, we suggest that the tau transgenic mouse models may be helpful in studying the possible mechanisms of the dysfunction.
Alzheimer Disease
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physiopathology
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Animals
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Disease Models, Animal
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Mice
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Mice, Transgenic
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Olfaction Disorders
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physiopathology
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tau Proteins
7.Electromyographic study of congenital clubfoot.
Nan HU ; Yuan-Zhi LUO ; Hai-Bo MEI ; Jin TANG ; Xiao-Gui ZHANG
Chinese Journal of Contemporary Pediatrics 2008;10(2):243-244
Adolescent
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Child
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Child, Preschool
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Clubfoot
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physiopathology
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Electromyography
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Female
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Humans
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Infant
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Male
8.Hernsubanine E, a new hasubanan alkaloid from Stephania hernandifolia.
Nan ZHANG ; Li-Jia TANG ; Lu-Lu DENG ; Huan-Yu GUAN ; Jian-Xin ZHANG ; Xiao-Jiang HAO ; Yuan-Hu ZHANG
China Journal of Chinese Materia Medica 2014;39(6):1020-1023
A new hasubanan alkaloid, hernsubanine E (1), as well as two known compounds p-hydroxybenzaldehyde (2) and (-)-syringaresinol (3) have been isolated from the whole plants of Stephania hernandifolia by various column chromatographic methods. Their structures were identified by physicochemical properties and spectral analyses. Compounds 2 and 3 were isolated from the genus of Stephania for the first time.
Alkaloids
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chemistry
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Heterocyclic Compounds, 4 or More Rings
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chemistry
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isolation & purification
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Stephania
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chemistry
9.Effects of Robot-assisted Task-oriented Training on Hand Function after Stroke
Zhen FU ; Rongrong JIANG ; Cuihuan PAN ; Yan CHEN ; Zhengmao YE ; Nan HU ; Lijuan LUO ; Changlin XIAO ; Yuanwen LIU
Chinese Journal of Rehabilitation Theory and Practice 2017;23(3):338-344
Objective To study the effects of the rehabilitation robot-assisted task-oriented training on the hand function in patients after stroke. Methods From June, 2015 to September, 2016, 35 inpatients suffering from stroke were randomly allocated to control group (n=17) and trial group (n=18). Based on the routine rehabilitation, the trial group accepted robot-assisted task-oriented training, while the control group accepted therapist-assisted task-oriented training, for two weeks. They were measured the active range of motion (AROM) of fingers, assessed with fingers motor of Fugl-Meyer Assessment (FMA) and modified Barthel Index (MBI) invovled with hands before and after train-ing. Results The inpatients dropped three in the control group, two in the trial group. AROM of extension and flexion of all the fingers, the AROM of extension and total of three fingers of thumb, index and middle, and the total AROM of each finger improved in the trial group af-ter training (t>2.937, P<0.05), while the AROM of extension and flexion of all the fingers, AROM of extension, flexion and total of the fin-gers of thumb, index and middle, total AROM of the fingers of thumb, index and little improved in the control group after training (t>2.528, P<0.05);the AROM of extension and total of the fingers of thumb, index and middle, and the total AROM of fingers of thumb and index im-proved more in the trial group than in the control group (t>2.535, P<0.05). The scores of mass flexion, mass extension, opposition, cylinder grip, spherical grip and total score of FMA improved in the trial group after training (Z>2.000, P<0.05), while the scores of mass extension, opposition and the total score of FMA improved in the control group after training (Z>2.000, P<0.05). There was no significant difference between the two groups on the items and total scores after training (P>0.05). The scores of feeding, dressing, toilet transfers, bathing, groom-ing of MBI and the total score of them improved in the trial group after training (Z>2.041, P<0.05), while the total score of MBI improved in the control group after training (Z=-2.527, P<0.05). There was no significant difference between the two groups in the items and total scores after training (P>0.05). Conclusion The rehabilitation robot-assisted task-oriented training can improve AROM of hemiplegic fingers and grip function.
10.Protective effect of astragalus saponin extracts on kidneys of diabetic rats.
Feng XIAO ; Ya-guo HU ; Shi-nan WU ; Qi-yang SHOU ; Yue-qin CAI ; Hui-ming WANG ; Hui WANG
China Journal of Chinese Materia Medica 2015;40(10):2014-2018
To study the protective effect of astragalus saponin extracts (AS) on kidneys of diabetic rats. Totally 32 diabetic rats induced by streptozotocin (STZ) were divided into AS high and low dose groups, the positive control group and the model group (DM group) and orally administered with 50 mg x- kg(-1) x d(-1) AS 200, 25 mg x kg(-1) x d(-1) valsartan, 10 mL x kg(-1) x d(1) physiological saline, respectively. Another 8 healthy rats were collected in the normal control group (NC group, physiological saline 10 mL x kg(-1). d(-1)). All rats were treated for consecutively 6 weeks. After the administration, the body weight was measured every week, the concentration of blood glucose was monitored on week 2, 4 and 6. The total urine and total urinary protein (U-TP) in 24 h were measured by the metabolic cage method on week 6; At the end of week 6, blood samples were collected from hearts to detect blood urea nitrogen (BUN), serum creatinine (Scr), uric acid (UA) , total cholesterol (CH) triglyceride (TG) by biochemical methods. Kidneys were collect to calculate the kidney hypertrophy index and observe the pathological sections. The laboratory results show that in the DM group, the blood glucose, metabolic cost in 24 h, kidney hypertrophy index, U-TP, BUN, Scr, UA, TG were significantly higher than that in the NC group (P < 0.01, P < 0.05) , with significant pathological changes; After the intervention with AS, the metabolic value in 24 h, kidney hypertrophy index, U-TP, BUN, Scr, UA, TG were significantly lower in the high dose group (P < 0.01, P < 0.05), and the kidney hypertrophy index, BUN, Scr, UA, TG in the low dose group were also significantly lower (P < 0.05), with slight reduction in renal pathological changes in both groups. In conclusion, Astragalus saponin extracts have a certain protective effect on kidneys of diabetic rats.
Animals
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Astragalus Plant
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chemistry
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Blood Glucose
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metabolism
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Blood Urea Nitrogen
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Diabetic Nephropathies
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metabolism
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prevention & control
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Drugs, Chinese Herbal
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administration & dosage
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Humans
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Kidney
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drug effects
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metabolism
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Male
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Rats
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Rats, Sprague-Dawley
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Saponins
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administration & dosage
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Uric Acid
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metabolism