1.Association between Human Leukocyte Antigen DR gene polymorphisms and total IgE levels in children with asthma
Qingling XIE ; Hong ZHEN ; Ling QIN
Clinical Medicine of China 2012;28(6):597-600
Objective To investigate the association between Human Leukocyte Antigen DR (HLADR) gene polymorphisms and total IgE levels in children with asthma.Methods This study involved 84 unrelated children with asthma and 168 healthy controls without asthma.All participants had their serum total IgE levels measured with UniCAP Pharmacia system,and skin-prick test with ten kinds of inhalant allergens were taken among them.HLA oligonucleotide array was used to determine twenty-one gene frequencies of HLADR.Results ( 1 ) The frequencies of HLA-DRB1 * 070X allele and HLA-DRB1 * 11XX allele among the asthmatic were significantly higher than those in the healthy controls (HLA-DRB1 * 070X allele:2.98%vs.0.30%,x2 =6.915,P < 0.05 ; HLA-DRB1 * 11XX allele:13.69% vs.5.95%,x2 =9.478,P < 0.01 ),Odds ratios( OR)for the two groups were 10.57(95% CI:1.215 -91.986)and 2.79(95% CI:1.429 -5.449)respectively.HLA-DRB3( 52 ) * 010X allele were significantly decreased in asthmatics compared to healthy controls(13.99%,x2 =5.854,P <0.05),OR was 0.429(95% CI:0.214 -0.862).(2) Significant correlation between HLA-DRB1 * 160XX,HLA-DRB1 * 3 (17)alleles and the level of total IgE were found in asthmatic children(P <0.05).OR were 0.145(95% CI:0.027 -0.781 )for HLA-DRB1 * 160XX allele and 1.667(95%CI:1.367-2.033)for HLA-DRB1 * 3(17)allele.Conclusion HLA-DRB1 *070X allele and HLA-DRB1 * 11XX allele were implicated in susceptibility to asthma,HLA-DRB3 (52) * 010X allele might conferring protection effects against asthma.There were association between HLA-DRB1 * 160XX,HLA-DRB1 * 3 ( 17 ) alleles and the level of total IgE in asthmatic children.Protective effects of HLA-DRB1 * 160XX allele against high level IgE response was noted,while HLA-DRB1 * 3(17)allele might be associated with high level of IgE in patients with asthma.
3.Study on relations between transient receptor potential vanilloid 1 and pungent property of traditional Chinese medicines.
Xing WANG ; Yan-Ling ZHANG ; Yun WANG ; Zhen-Zhen REN ; Hong-Juan BAO ; Yan-Jiang QIAO
China Journal of Chinese Materia Medica 2014;39(13):2422-2427
The five-flavor theory of traditional Chinese medicines (TCM) and the flavor efficacy generation mechanism has long been focuses and difficulties in studies on traditional Chinese medicinal properties. In this paper, by using the pharmacophore-based virtual screening technique, the authors discussed the relations between the pungent property and transient receptor potential vanilloid 1 (TRPV1) by studying the TCM components' role in regulating TRPV1 ion channel. The results showed that the matching relationship between TRPV1 agonist pharmacophore model and TCM chemical components could identify the active ingredients from pungent herbs. Therefore, the authors proposed that TRPV1 is one of the potential targets for efficient pungent herbs. The pungent property of TCMs is decided by its chemical components, and consistent with the inherited and additive characteristics.
Drugs, Chinese Herbal
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chemistry
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pharmacology
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Humans
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Smell
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TRPV Cation Channels
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antagonists & inhibitors
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metabolism
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Taste
4.Extended adjuvant temozolomide for treatment of glioblastoma multiforme:experience of a single institu- tion
Changguo SHAN ; Mingyao LAI ; Weiping HONG ; Junjie ZHEN ; Qingjun HU ; Xuebing LING ; Linbo CAI
The Journal of Practical Medicine 2017;33(16):2743-2746
Objective To assess the impact of additional cycles of temozolomide on the survival of glio-blastoma(GBM)patients after 6 months of maintenance temozolomide(TMZ)following concurrent TMZ chemo-therapy and radiation therapy. Methods Data of 51 GBM patients from 2009 to 2015 were retrospectively studied and the therapeutic effect was assessed according to whether receiving long-term treatment with TMZ. Results Sev-enteen of fifty-one GBM patients received 8 or more cycles and prolonged treatment improved progression-free sur-vival(P=0.011)and overall survival(P=0.004). Conclusions Extended use of TMZ is safe to GBM patients , which may improve response OS and PFS compared to conventional regimen. Prospective studies in larger popula-tions are needed to better-define the population to whom it can be proposed and its optimal duration.
5.Decreased hippocampal neurogenesis is involved in cognitive dysfunction induced by thiamine deficiency
Na ZHAO ; Chun-Jiu ZHONG ; Yang WANG ; Yan-Ling ZHAO ; Guo-Min ZHOU ; Zhen HONG ;
Chinese Journal of Neurology 2000;0(05):-
Objective To investigate the influence of thiamine deficiency(TD)at early pre- pathological lesion stage on cognitive function and the correlation between cognitive dysfunction and hippocampal neurogenesis.Methods TD mouse model was prepared by feeding a thiamine-depleted diet. Learning and memory functions of TD mice were tested with Y-maze.Hippoeampal neurogenesis was studied with bromodeoxyuridine(BrdU),proliferative cell nuclear antigen(PCNA),and Doublecortin(Dcx) immunohistochemical staining on the 7th(TD7),9th,14th and TD25th day.Results TD9 mice without pathological impairment and cholinergic nerve degeneration needed more times of training(22.3?2.2)in the learning test of Y maze compared with the controls(13.5?3.5).Correspondingly,the numbers of BrdU-positive ceils and the immunoreactivity of Dcx decreased significantly in the TD9 mice(19.8?0.4, 1537.2?50.2 vs 23.9?0.3,2688.9?127.9 pixels/mm~2).Thiamine re-administration reversed the declined hippocampal neurogenesis:the number of BrdU-positive cells was 23.6?1.9 and Dcx immunoreactivity was 2052.3?269.6 pixels/mm~2:the impaired learning ability was simultaneously restored,with the number of total training trial being 16.8?0.5.Conclusion The decreased hippocampal neurogenesis contributes to retarded learning ability at early pre-pathological lesion stage of TD.
6.Changes of phosphorylated cyclic adenosine monophosphate response element binding protein and effects of GM1 on it in neonatal rat models with cerebral hypoxic-ischemia
hong-ai, ZHANG ; ling, WANG ; qin, LENG ; nian-di, YANG ; shi-zhen, ZHAO
Journal of Applied Clinical Pediatrics 1994;0(04):-
Objective To study changes of phosphorylated cyclic adenosine monophosphate(c-AMP) response element binding protein in hippocampus(CA1) of neonatal rats after cerebral hypoxic-ischemia(HI)and effects of gangliosides (GM1)on the p-CREB.Methods An animal model of neonatal hypoxic-ischemia brain damage was established. Changes of p-CREB in hippocampal CA1 was detected with immunohistochemical methods.Results The p-CREB levels in the CA1 of HI and GM1 groups increased transiently and then decreased quickly, but there was no significant difference between HI and GM1 group.Conclusion The p-CREB levels in the CA1 of HI group increase transiently and then decrease quickly after HI ;GM1 has little effect on p-CREB in the CA1 after HI.
7.Relationship between Simple Obesity and Fibrinogen,B?448 G/A Gene Polymorphism in Children
jie, GAO ; feng-zhen, ZHAO ; jun-ling, ZHANG ; ying, WU ; hong-fen, LI
Journal of Applied Clinical Pediatrics 2006;0(19):-
0.05).The FMPV of the B?448 AA plus GA was higher than that of the GG type in obesity group(P0.05).Conclusions The simple obesity in children is associated with Fg and FMPV,which have become the high risk factors of the disease of heart and brain.The Fg B?448 G/A gene polymorphism may be an accumulative efficiency gene of children with simple obesity by influencing FMPV.
8.Autophagy inhibitor 3-methyladenine regulates the expression of LC3, Beclin-1 and ZnTs in rat cerebral cortex following recurrent neonatal seizures
Hong NI ; Yong GONG ; Jian-Zhen YAN ; Le-Ling ZHANG
World Journal of Emergency Medicine 2010;1(3):216-223
BACKGROUND: Autophagy is a homeostatic process for intracellular recycling of bulk proteins and aging organelles. Increased autophagy has now been reported in experimental models of traumatic brain injury, stroke and excitotoxicity, and in patients with Alzheimer's disease and critical illness. The role of autophagy in developmental epilepsy, however, is unknown. The present study was to investigate the effects of recurrent neonatal seizure, in the presence and absence of autophagy inhibitor 3-methyladenine (3-MA), on the acute phase gene expression of ZnTs, LC3 and Beclin-1 in rat cerebral cortex and the interaction among them. METHODS: Thirty-six Sprague-Dawley neonatal rats at postnatal day 6(P6) were randomly divided into three groups: a recurrent-seizures group (RS, n=12), a 3-MA treated-seizure group (3-MA group, each rat pretreated with 3-methyladenine before seizures, 100nmol/ l/day, i.p., n=12) and a control group (n=12). At 1.5 and 6 hours after the last seizures, the mRNA levels of ZnT1-ZnT3, microtubule-associated protein 1A/1B light chain 3 (LC3) and beclin-1 were detected using the real-time RT-PCR method. The LC3 protein level was examined by Western blotting. RESULTS: The levels of LC3, beclin-1 and ZnT-2 transcripts in the RS group elevated significantly at 1.5 and 6 hours after the last seizures compared with those in the control and 3-MA groups. At the interval of 1.5 hours, the mRNA level of ZnT-1 increased significantly after the last seizure compared with that in the control group. There was no significant difference in the transcript levels of ZnT-3 among the three groups. Linear correlation analysis showed that the expression of the five genes in the control group exhibited a significant inter-relationship. In the 3-MA group, however, the inter-relationship was only found between beclin-1 and ZnT-1. In the RS group, the inter-relationship was not observed. CONCLUSIONS: The autophagy/lysosomal pathway is immediately activated along with the elevated expression of ZnT1 and ZnT2 in the cerebral cortex after recurrent seizures. 3-MA is involved in the regulation of the autophagy/lysosomal pathway and ZnTs by down-regulating the expression of LC3 and beclin-1.
9.Application of SEMG to study the effects of imagery training on back-style high jump.
Wen-Feng LIU ; Yong-Ling CHANG ; Chang-Fa TANG ; Zhen-Zhen HONG ; Li-Qin YIN ; Jin CHEN ; Wen-Ning REN ; Long JIANG ; Jian KUANG
Chinese Journal of Applied Physiology 2013;29(3):260-270
Adolescent
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Adult
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Athletic Performance
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psychology
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Back
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physiology
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Electromyography
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Exercise
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physiology
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Humans
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Imagery (Psychotherapy)
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Male
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Young Adult
10.Effect of mesenchymal stem cells on human Th1 cells by flow cytometry.
Cui-Ling ZHENG ; Zhen-Xing GUO ; Ren-Chi YANG ; Xiao-Hong HAN
Journal of Experimental Hematology 2012;20(3):697-702
This study was aimed to investigate the effect of fetal bone marrow-derived mesenchymal stem cells (FBM-MSC) on the development of human Th1 cells. FBM-MSC were isolated, cultured and expanded in vitro. The cells were identified by their phenotype profiles and differential capacity. Human CD4(+) T cells from healthy donors were cultured alone or co-cultured with FBM-MSC (FBM-MSC/CD4). In these two cultures, the quantities of Th1 cells (interferon-γ(+)) were analyzed by flow cytometry. The results indicated that the immunophenotype and multilineage differentiation of FBM-MSC satisfied the generally accepted criteria. FBM-MSC played an inhibitory role in the development of Th1 cells. Flow cytometry analysis showed that the percentage of Th1 cells in FBM-MSC/CD4 was significantly lower than that in CD4(+) T cells cultured alone. The protein level of IFN-γ in FBM-MSC/CD4 detected by ELISA was also lower than that in CD4(+) T cells cultured alone. It was also demonstrated that the expression level of IL-6 in FBM-MSC/CD4 was much higher than that in CD4(+) T cells cultured alone or FBM-MSC. The neutralizing antibody of IL-6 could increase the quantities of Th1 cells and the expression levels of IFN-γ. It is concluded that FBM-MSC may play an inhibitory role in the development of human Th1 cells, and the IL-6 pathway may be one of mechanisms involved in the inhibitory role.
Bone Marrow Cells
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cytology
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Cell Differentiation
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Flow Cytometry
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Humans
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Immunophenotyping
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Interleukin-6
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metabolism
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Mesenchymal Stromal Cells
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cytology
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metabolism
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Th1 Cells
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cytology