1.Effects of rhCNTF on axoplasmic transport following incomplete injury of optic nerves of adult rats
Journal of Third Military Medical University 1988;0(05):-
Objective To observe the effects of ciliary neurotrophic factor (CNTF) on the recovery of axoplasmic transport following incomplete injury of the optic nerves (ON) of the adult rats. Methods Moderate injury of the optic nerves of 50 adult female rats was induced by crushing the optic nerves for 10 seconds using hemostatic forceps. Recombinant human CNTF (rhCNTF) was injected into the vitreous cavity of CNTF treated group at 0, 1, 2, 4, and 8 weeks after injury. However, the same volume of distilled water was injected into the vitreous cavity of the control rats. The changes of axoplasmic transport were assessed by anterograde labelling combined with horseradish peroxidase (HRP) at 1, 2, 4, 8, and 12 weeks after injury. Results The labelling density at ON distal to the site of injury by HRP obviously decreased at 1 and 2 weeks after injury, and gradually enhanced at 4 weeks and peaked at 8 weeks after injury. The recovery ratios of axoplasmic transport in CNTF treated group and control group at 8 weeks after injury were 31 86% and 12 87%, respectively. No HRP reaction product was observed in the superior colliculus at 1 and 2 weeks after injury. There was significant difference of the HRP anterograde labeling density in ON and the superior colliculus between the CNTF treated group and the control group during 4 to 12 weeks after injury ( P
2.Analysis of Bayley Scales of Infant Development Test Results of 135 Low Birth Weight Infants
Yi ZHOU ; Can YU ; Lixian JIANG
Journal of Kunming Medical University 2013;(11):102-104
Objective To investigate the intelligence development status of the low birth weight infants and its influence factors. Methods The intelligence developments of 135 low birth weight infants aged 6-30 months were investigated using Bayley Scales of Infant Development, and the self-development influential factors were analyzed with questionnaire.Results The average of MDI was 86.76±18.95 in 135 infants,of which the detection rate of MDI<80 points accounted for 17.8%and the detection rate of PDI<80 points accounted for 29.6%;birth weight of infant,age,the degree of parents,culture and feeding way had significant effects on MDI in infants;age and birth weight had significant effects on PDI in infants. Conclusion The development level of infants is influenced by multi-factors. More attention should be paid to reduce premature and low birth weight infants,improve the degree of parents' culture, advocate breastfeeding and conduct early intervention in order to assure the intelligence development of infants.
3.Effects of NS1619 on airway remodeling and expression of α-SMA and PDGF-BB in asthmatic mice
Can HONG ; Yi WU ; Zhongxiu ZHAO
Journal of Clinical Pediatrics 2014;(8):772-775
Objective To study the mechanism of NS1619 on airway remodeling in asthmatic mice. Methods A total of 24 healthy female BALB/c mice were randomly divided into 3 groups:the control group, the oval albumin (OVA) group (the asthma group) and the NS1619 group (the intervention group), 8 mice in each group. Asthma group was induced with OVA, chal-lenged by continuous inhalation with 5%OVA from day 19 to 23, then changed to 3 times per week from day 24 to 55. Interven-tion group was inhaled with NS1619 (30μmol/L) before OVA. Control group was given with normal saline. The thickness of air-way smooth muscle and the area of collagen deposition in lung tissue slices were observed by HE and Masson staining, measured by a computer assisted image analysis system. The concentration ofα-smooth muscle actin (α-SMA) in cells was detected by immunohistochemistry. The expression of platelet derived grouth factor-BB, PDGF-BB (PDGF-BB) in serum was measured by immunosorbent assay. Results Compared with the asthma group, the pathologic changes of lung tissue, the thickness of airway smooth muscle and collagen deposition in the group treated with NS1619 were signiifcantly decreased (P<0.05). Compared with the asthma group, the levels ofα-SMA in cells and PDGF-BB in serum in NS1619 treated group were signiifcantly decreased (P<0.05). Conclusions NS1619 partly inhibited airway remodeling in asthmatic mice, partially by down-regulating the expres-sion level ofα-SMA and PDGF-BB.
4.Advances in studies on growth metabolism and response mechanisms of medicinal plants under drought stress.
Can SI ; Jun-Yi ZHANG ; Hu-Chao XU
China Journal of Chinese Materia Medica 2014;39(13):2432-2437
Drought stress exerts a considerable effect on growth, physiology and secondary metabolisms of the medicinal plants. It could inhabit the growth of the medicinal plants but promote secretion of secondary metabolites. Other researches indicated that the medicinal plants could depend on the ABA signaling pathway and secreting osmotic substances to resist the drought stress and reduce the damage by it. The article concludes the changes in growth, physiology, secondary metabolisms and response mechanisms of medicinal plants to drought stress that provides a theoretical basis for exploring the relationship between medicinal plants and drought stress.
Abscisic Acid
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metabolism
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Droughts
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Plant Proteins
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genetics
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metabolism
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Plants, Medicinal
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genetics
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growth & development
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metabolism
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Signal Transduction
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Water
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metabolism
5.Genetic diversity of different populations of lilyturf revealed by RSAP analysis.
Hu-Chao XU ; Jun-Yi ZHANG ; Can SI
China Journal of Chinese Materia Medica 2014;39(20):3922-3927
Restriction site amplification polymorphism (RSAP) markers were employed to access the genetic diversity and relationship of 120 lilyturf germplasms from different geographical origins. Sixteen RSAP primer pairs generated 326 polymorphic bands, of which 318 (97.55%) were polymorphic. The value of polymorphism information content (PIC) ranged from 0.87 to 0.95 with an average of 0.92. These results indicated there was abundant genetic diversity among samples. The results of data analysis on 20 population showed that the value of percentage of polymorphic locus (PPL), Nei's gene diversity (H) and Shannon's information index (I) were 19.94%-85.58%, 0.082 6-0.210 7, 0.120 6-0.328 1 respectively. The most abundant genetic diversity was found in the O. japonicus population from Zhejiang and the least in the Liriope minor population. The genetic distance among 20 population was 0.024 6-0.286 8, of which the minimum genetic distance was 0.024 6 between population I and population 13 while the maximum 0.286 8 between population 5 and population 15. Coefficient of genetic differentiation among natural populations was 0.115 3 (Gst). And the gene differentiation contributed to 43.07% of the total genetic variation among populations and to 56.93% within populations. The total gene flow (Nm) was 0.660 9. UPMGA clustering analysis was basically similar to of the principle coordinate analysis (PCA). The 120 samples were classified into four major groups, which were basically corresponded with the genetic relationships based on morphological traits. The results of UPMGA and PCA were also consistent with geographical origins.
Amplified Fragment Length Polymorphism Analysis
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China
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Genetic Variation
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Liriope Plant
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classification
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genetics
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Phylogeny
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Polymorphism, Restriction Fragment Length
6.Combination therapy with cyclosporine and methotrexate in severe rheumatoid arthritis.
Yi XU ; Chuang LIANG ; Yajiao CAN ; Al ET ;
Chinese Journal of Practical Internal Medicine 2006;0(S1):-
Objective To evaluate curative effects of treatment with Cyclosporine and methotreate in RA patients. Methods 118 cases RA patients,randomly divide into 57 cases of MTX(control)group to adopt 15 mg.per week, for six months,and 61 cases of MTX+CsA group to adopt cotreatment with the MTX 15 mg.per week and CsA 3 mg (kg?d)to observe post-treatment of the clinical signs and index of chemical analysis.Results the results show that the clinical signs and index of chemical of two groups both obviously improvement(P
7.Study strategies for neurobiology mechanism of "kidney storing will and responding to fear".
Shukao LIU ; Can YAN ; Lili WU ; Yi PAN
Journal of Integrative Medicine 2010;8(2):106-10
The theory of traditional Chinese medicine (TCM) deems that kidney essence is the material basis of formation, development and function of the brain and it maintains human being's psychomotility and behavior. Moreover, kidney essence is the material basis of emotional activity. The emotion theory in TCM deems that kidney stores will and responds to fear. The so called will in this theory refers to memory which includes three basic steps such as memorization, storage and recollection. Meanwhile, Western medicine considers stress as a kind of information that forms memory trace in central nervous system. Combining the TCM theory with the modern psychological theory on stress, and from the points of views of the emotion regulation, the formation, consolidation, extraction and extinction of fear memory, and the plasticity of amygdala-hippocampus-prefrontal cortex nervous pathway, as well as the results of pharmacological studies of prescriptions and herbs for invigorating the kidney, the authors explained in this article the pathological mechanisms of kidney deficiency due to attack of fear, and revealed the material basis, the action modes, and the neurobiological mechanisms of the kidney in controlling and regulating emotional activity.
8.Regulatory of Jiaweisinisan on expression of hippocampal BDNF, NR1 and dental gyrus neurogenesis in rats with chronic stressed-depression
Can YAN ; Yinwei LIU ; Lili WU ; Penghui ZHU ; Yi PAN
Chinese Pharmacological Bulletin 2016;32(4):569-574
Aim To study the regulatory of Jiaweisini-san on expression of hippocampal BDNF, NR1 and dental gyrus ( DG ) neurogenesis in rats with chronic stressed-depression and its possible mechamisms. Methods Chronic unpredictable mild stress was used to establish the rat model of stressed depression. The expression of BrdU, NeuN, brain -derived neurotro-phic factor ( BDNF ) and N-methyl-D-aspartate recep-tor1 ( NR1 ) in hippocampal dental gyrus were detected by fluorescently labeled immunohistochemical method. In addition, BDNFmRNA was detected by in situ hy-bridization. Results Chronic stress could inhibit the proliferation of neural precursors in hippocampal DG ( P<0. 01 );the expression of BDNF decreased signifi-cantly in DG in model rats ( P <0. 01 ) , while the ex-pression of NR1 increased significantly ( P <0. 01 ) . JWSNS and Fluoxetine hydrochloride significantly en-hanced the amount of new proliferating cells and the number of neurons in unit area of DG ( P<0. 01 ) , in-creased the expression of BDNF ( P <0. 01 ) and de-creased the expression of NR1 in DG(P<0. 01). Con-clusion JWSNS could promote the neuronal prolifera-tion in hippocampal DG of rat with chronic stressed-de-pression,and may exert an effect of promoting the pro-liferation of neurons in hippocampal DG by enhancing the expression of BDNF and decreasing the expression of NR1 .
9.Effect of Jiawei sinisan on the levels of some amino acids in hippocampus of rats with chronic stress
Can YAN ; Lili WU ; Zhiwei XU ; Yafei SHI ; Yi PAN
Chinese Journal of Pathophysiology 2000;0(10):-
AIM: To observe the effect of Jiawei sinisan (JWSNS) on some amino acids in hippocampus of rats with chronic stress. METHODS: Wistar rats were randomly divided into 3 groups: control, model and JWSNS group. OPA (HPLC) was adopted to detect the contents of amino acids in hippocampus. RESULTS: The contents of Glu and Asp in hippocampus of model group increased significantly ( P
10.Effects of Blood-Circulation Promoting and Phlegm Removing Treatment on Mitochondria membrane in Spontaneous Hypertensive Rats
Yi PAN ; Lili WU ; Can YAN ; Weiwe LEI
Journal of Guangzhou University of Traditional Chinese Medicine 2001;0(01):-
Objective To explore the effects of blood-circulation promoting and phlegm removing treatment on the structure, activity of Ca 2+ -Mg 2+ ATPase and malondialdehyde(MDA) content of mitochondria membrane in spontaneous hypertensive rats (SHR). Methods Spontaneous hypertensive rats (SHR) were classified into 14-week-old model group(Group C),28-week-old model group(Group D) and treatment group (treated with blood-circulation promoting and phlegm removing Chinese herbal medicine,Group E).Normal Wistar rats 14 weeks old (Group A)and 28 weeks old(Group B) served as the controls.The structure of myocardial mitochondria membrane were analyzed quantitatively by transmission electron microscope,and the activity of Ca 2+ -Mg 2+ ATPase and MDA content were also detected. Results Specific surface area of mitochondria was smaller, the activity of Ca 2+ -Mg 2+ ATPase was lower and MDA content was higher in SHR than the controls.MDA content increased as the duration of disease prolonged. Chinese herbal medicine could counteract the above changes. Conclusion Blood-circulation promoting and phlegm removing herbs can partially counteract the progress of left ventricular hypertrophy in SHR.