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1.
World J Psychiatry ; 14(5): 670-677, 2024 May 19.
Artículo en Inglés | MEDLINE | ID: mdl-38808083

RESUMEN

BACKGROUND: Epilepsy is a nervous system disease characterized by recurrent attacks, a long disease course, and an unfavorable prognosis. It is associated with an enduring therapeutic process, and finding a cure has been difficult. Patients with epilepsy are predisposed to adverse moods, such as resistance, anxiety, nervousness, and anxiety, which compromise treatment compliance and overall efficacy. AIM: To explored the influence of intensive psychological intervention on treatment compliance, psychological status, and quality of life (QOL) of patients with epilepsy. METHODS: The clinical data of 105 patients with epilepsy admitted between December 2019 and July 2023 were retrospectively analyzed, including those of 50 patients who underwent routine intervention (control group) and 55 who underwent intensive psychological intervention (research group). Treatment compliance, psychological status based on the Self-Rating Anxiety Scale (SAS) and Depression Scale Self-Rating Depression Scale (SDS) scores, hope level assessed using the Herth Hope Scale (HHS), psychological resilience evaluated using the Psychological Resilience Scale, and QOL determined using the QOL in Epilepsy-31 Inventory (QOLIE-31) were comparatively analyzed. RESULTS: Treatment compliance in the research group was 85.5%, which is significantly better than the 68.0% of the control group. No notable intergroup differences in preinterventional SAS and SDS scores were identified (P > 0.05); however, after the intervention, the SAS and SDS scores decreased significantly in the two groups, especially in the research group (P < 0.05). The two groups also exhibited no significant differences in preinterventional HHS, Connor-Davidson Resilience Scale (CD-RISC), and QOLIE-31 scores (P > 0.05). After 6 months of intervention, the research group showed evidently higher HHS, CD-RISC, tenacity, optimism, strength, and QOLIE-31 scores (P < 0.05). CONCLUSION: Intensive psychological intervention enhances treatment compliance, psychological status, and QOL of patients with epilepsy.

2.
J Integr Neurosci ; 23(1): 3, 2024 Jan 10.
Artículo en Inglés | MEDLINE | ID: mdl-38287840

RESUMEN

BACKGROUND: The impact of the methylenetetrahydrofolate reductase (MTHFR) C677T mutation on the relationship between plasma homocysteine (Hcy) levels and stroke has been extensively studied and documented in previous study. However, it remains unclear whether the MTHFR C677T mutation can affect the response to Hcy lowering treatment in stroke patients with hyperhomocysteinemia (HHcy). Understanding the impact of genetic factors on treatment response can help optimize personalized treatment strategies for stroke patients with HHcy. We aimed to investigate the potential association between the MTHFR C677T gene polymorphisms and the effectiveness of Hcy lowering treatment using vitamin therapy in stroke patients with HHcy. METHODS: The MTHFR C677T genotype polymorphisms were identified using polymerase chain reaction-restriction fragment length polymorphism, and the distribution of three genotypes in the MTHFR C677T gene locus was compared. The treatment effects of Hcy lowering agents were compared among patients with different genotypes. RESULTS: Among the 320 stroke patients enrolled in the study, 258 (80.6%) were diagnosed with HHcy. Of these, 162 patients (Effective Group) responded well to the clinical Hcy lowering treatment, while 96 patients (Invalid Group) failed to achieve sufficient response even after taking combination supplements of folic acid, Vitamin B6, and methylcobalamin for one month. Significant differences were observed in terms of age (p < 0.001), hypertension (p = 0.034), dyslipidemia (p = 0.022), hyperuricemia (p = 0.013) and genotype distribution of MTHFR C677T gene polymorphism (p < 0.001) between the Invalid group and the Effective group. The multivariate regression analysis revealed that the T allele (odd rations [OR], 1.327; 95% confidence interval [CI], 1.114-1.580; p = 0.0015) was independently associated with an insufficient Hcy lowering treatment effect. Additionally, the TT genotype was independently associated with insufficient response in both the codominant model (OR, 1.645; 95% CI, 1.093-2.476; p = 0.017) and the recessive model (TT versus CC + CT; OR, 1.529; 95% CI, 1.145-2.042; p = 0.004). However, no relationship was observed between CT + TT genotypes and poor treatment effect in the dominate model. CONCLUSIONS: Our findings suggested that the TT genotype and T allele of MTHFR C677T polymorphism were independently associated with an insufficient Hcy lowering treatment effect in stroke patients with HHcy.


Asunto(s)
Hiperhomocisteinemia , Accidente Cerebrovascular , Humanos , Hiperhomocisteinemia/tratamiento farmacológico , Hiperhomocisteinemia/genética , Polimorfismo Genético , Accidente Cerebrovascular/complicaciones , Accidente Cerebrovascular/tratamiento farmacológico , Accidente Cerebrovascular/genética , Metilenotetrahidrofolato Reductasa (NADPH2)/genética , Homocisteína/genética , Vitaminas
3.
Neuroreport ; 32(11): 918-924, 2021 08 04.
Artículo en Inglés | MEDLINE | ID: mdl-34132705

RESUMEN

Glucocerebrosidase (GBA) mutations occur frequently in Parkinson's disease (PD) patients. This study aims to identify potential crucial genes and pathways associated with GBA mutations in patients with PD and to further analyze new molecular mechanisms related to the occurrence of gene mutations from the perspective of bioinformatics. Gene expression profiles of datasets GSE53424 and GSE99142 were acquired from the Gene Expression Ominibus database. Differentially expressed genes (DEGs) were detected, using the 'limma' package in R, comparing IDI-PD 1 (idiopathic PD patients) and GBA-PD 1 [PD patients with heterozygous GBA mutations (GBA N370S)] group samples. The functions of top modules were assessed using the DAVID, whereas gene ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses were performed. Protein-protein interaction networks were assembled with Cytoscape software and separated into subnetworks using the Molecular Complex Detection Algorithm. Data from GSE53424 and GSE99142 were also extracted to verify our findings. There were 283 DEGs identified in PD patients heterozygous for GBA mutations. Module analysis revealed that GBA mutations in PD patients were associated with significant pathways, including Calcium signaling pathway, Rap1 signaling pathway and Cytokine-cytokine receptor interaction. Hub genes of the two modules were corticotropin-releasing hormone (CRH) and Melatonin receptor 1B (MTNR1B). The expression of CRH was downregulated, whereas that of MTNR1B was upregulated in PD patients with GBA mutations. The expression of CRH and MTNR1B has diagnostic value for PD patients with heterozygous GBA mutations. Novel DEGs and pathways identified herein might provide new insights into the underlying molecular mechanisms of heterozygous GBA mutations in PD patients.


Asunto(s)
Biología Computacional/métodos , Perfilación de la Expresión Génica/métodos , Glucosilceramidasa/genética , Mutación/fisiología , Enfermedad de Parkinson/enzimología , Enfermedad de Parkinson/genética , Bases de Datos Genéticas , Humanos , Mapas de Interacción de Proteínas/fisiología
4.
Microb Pathog ; 131: 277, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-29731224

RESUMEN

In recent years Epithelial Mesenchymal Transition (EMT) has been proposed as a mechanism indispensable to acquisition of metastatic properties by tumor cells. In this study we tested the ability of Farrerol, a Chinese herb-derived compound to ablate the EMT in human lung squamous cell carcinoma cells. Human lung squamous cell carcinoma cells, Calu-1 were treated with various concentrations of Farrerol for 24 h to examine its effect on their viability by the MTT assay. Only those concentrations which showed least effect on the viability of Calu-1 cells were further used to evaluate the expression of epithelial and mesenchymal markers by western blotting. Furthermore the effect of such concentrations on the migration and invasion of Calu-1 cells was determined by wound healing and transwell invasion assays respectively. The results demonstrated that Farrerol treatment led to the downregulation of Slug and Zeb-1, transcriptional regulators of EMT with the concomitant increase and decrease in the expression of E-cadherin and vimentin respectively. These data were further supported by migration and invasion assays which demonstrated that Farrerol treatment caused inhibited the migration and invasion of Calu-1 lung squamous cell carcinoma cells. Taken together, our results indicate that Farrerol suppresses lung squamous cell carcinoma cell metastatic potential by modulating the expression of EMT proteins.

5.
Plant Mol Biol ; 98(6): 579, 2018 12.
Artículo en Inglés | MEDLINE | ID: mdl-30478705

RESUMEN

This article (Zhou et al. 2018) has been retracted by the authors because the sequence BIBAC 002A111F06 was incorrectly assigned to the wrong bacterial species. The BIBAC 002A111F06 sequence (GenBank Accession KC129717) reported in the paper was attributed to Populus euphratica Oliv. The BLAST search of this KC129717 sequence against the nr database at NCBI showed that it has very high similarity to a genomic sequence from the gram-negative bacteria Stenotrophomonas maltophilia. The bacterium associates with Populus euphratica Oliv. and DNA isolated from Populus euphratica Oliv. for the construction of the BIBAC clone library inlcuded DNA from Stenotrophomonas maltophilia. Therefore, the phenotype of the transgenic Arabidopsis line carrying the KC129717 sequence cannot be attributed to genes from Populus euphratica Oliv. The authors apologize for the confusion and misinterpretation of our data resulting from the incorrect sequence assignment. All authors agree to this retraction.

6.
Plant Mol Biol ; 97(6): 525-535, 2018 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-30051252

RESUMEN

KEY MESSAGE: Transgenomics for gene discovery in Populus euphratica. Transgenomics, a member of the omics family of methodologies, is characterized as the introduction of DNA from one organism into another on a genome-wide scale followed by the identification of recipients with altered phenotypes. This strategy allows investigators to identify the gene(s) involved in these phenotypic changes. It is particularly promising for woody plants that have a long life cycle and for which molecular tools are limited. In this study, we constructed a large-insert binary bacterial artificial chromosome library of Populus euphratica, a stress-tolerant poplar species, which included 55,296 clones with average insert sizes of about 127 kb. To date, 1077 of the clones have been transformed into Arabidopsis thaliana via Agrobacterium by the floral dip method. Of these, 69 transgenic lines showed phenotypic changes represented by diverse aspects of plant form and development, 22 of which were reproducibly associated with the same phenotypic change. One of the clones conferring transgenic plants with increased salt tolerance, 002A1F06, was further analyzed and the 127,284 bp insert in this clone harbored eight genes that have been previously reported to be involved in stress resistance. This study demonstrates that transgenomics is useful in the study of functional genomics of woody plants and in the identification of novel gene(s) responsible for economically important traits. Thus, transgenomics can also be used for validation of quantitative trait loci mapped by molecular markers.


Asunto(s)
Estudios de Asociación Genética/métodos , Plantas Modificadas Genéticamente/genética , Populus/genética , Arabidopsis/genética , Cromosomas Artificiales/genética , Genoma de Planta/genética , Genómica/métodos , Fenotipo , Sitios de Carácter Cuantitativo/genética , Tolerancia a la Sal/genética
7.
Microb Pathog ; 112: 171-175, 2017 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-28943152

RESUMEN

In recent years Epithelial Mesenchymal Transition (EMT) has been proposed as a mechanism indispensable to acquisition of metastatic properties by tumor cells. In this study we tested the ability of Ferrerol, a Chinese herb-derived compound to ablate the EMT in human lung squamous cell carcinoma cells. Human lung squamous cell carcinoma cells, Calu-1 were treated with various concentrations of Ferrerol for 24 h to examine its effect on their viability by the MTT assay. Only those concentrations which showed least effect on the viability of Calu-1 cells were further used to evaluate the expression of epithelial and mesenchymal markers by western blotting. Furthermore the effect of such concentrations on the migration and invasion of Calu-1 cells was determined by wound healing and transwell invasion assays respectively. The results demonstrated that Ferrerol treatment led to the downregulation of Slug and Zeb-1, transcriptional regulators of EMT with the concomitant increase and decrease in the expression of E-cadherin and vimentin respectively. These data were further supported by migration and invasion assays which demonstrated that Ferrerol treatment caused inhibited the migration and invasion of Calu-1 lung squamous cell carcinoma cells. Taken together, our results indicate that Ferrerol suppresses lung squamous cell carcinoma cell metastatic potential by modulating the expression of EMT proteins.


Asunto(s)
Carcinoma de Células Escamosas , Medicamentos Herbarios Chinos/farmacología , Transición Epitelial-Mesenquimal/efectos de los fármacos , Transición Epitelial-Mesenquimal/fisiología , Neoplasias Pulmonares/tratamiento farmacológico , Transducción de Señal/efectos de los fármacos , Antígenos CD , Cadherinas/metabolismo , Línea Celular Tumoral/efectos de los fármacos , Movimiento Celular/efectos de los fármacos , Proliferación Celular/efectos de los fármacos , Supervivencia Celular/efectos de los fármacos , Humanos , Neoplasias Pulmonares/patología , Invasividad Neoplásica , Factores de Transcripción de la Familia Snail/metabolismo , Vimentina/metabolismo , Cicatrización de Heridas , Homeobox 1 de Unión a la E-Box con Dedos de Zinc/metabolismo
8.
Chin J Integr Med ; 18(8): 629-34, 2012 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-22855040

RESUMEN

Adaptation is an eternal theme of biological evolution. The paper aims at exploring the conception of positive correlation between traditional Chinese medicine (TCM) and human homeostatic evolution based on medical perspective. Discussions mainly involve TCM conforming to natural laws and natural evolution of life, spontaneous harmonization of yin and yang and operating system of human self-healing, modern human immunology and human endogenous immune function in TCM, self-homeostasis of human micro-ecological state and balance mechanism on regulating base in TCM, as well as adaptation-eternal theme of biological evolution and safeguarding adaptability-value of TCM. In perspective of medicine, theory and practice of TCM are in positive correlation with human homeostatic evolution, and what TCM tries to maintain is human intrinsic adaptive capability to disease and nature. Therefore, it is the core value of TCM, which is to be further studied, explored, realized and known to the world.


Asunto(s)
Evolución Biológica , Homeostasis , Medicina Tradicional China , Adaptación Fisiológica , Humanos , Sistema Inmunológico/inmunología , Yin-Yang
9.
Zhongguo Zhong Yao Za Zhi ; 37(24): 3701-5, 2012 Dec.
Artículo en Chino | MEDLINE | ID: mdl-23627163

RESUMEN

OBJECTIVE: To screen out fungus strains with acetylcholinesterase inhibitory activity from Huperzia serrata. METHOD: Endophytic fungi fermentation products from 59 H. serrata strains were stained with acetylcholinesterase hydrolyzed alpha-naphthaleneacetic ethyl ester and fast blue B salt, and screened for acetylcholinesterase inhibitory activity with thin-layer chromatography-bioautography. Target strains were classified and identified through the sequence analysis on 18s rDNA and 5.8s rDNA combined with morphological characteristics. RESULT: Fungus strain LQ2F01 from H. serrata showed positive color reaction in the screening for acetylcholinesterase inhibitory activity. The sequence analysis on 18s rDNA and 5.8s rDNA combined with morphological characteristics showed the strain LQ2F01 belonged to Acremonium. CONCLUSION: Endophytic Fungi LQ2F01 from H. serrata shows identical acetylcholinesterase inhibitory activity with the host plant, which is of great significance to the development of natural medicines and the studies on the relationship between the endophytic gungi and the host plant.


Asunto(s)
Acetilcolinesterasa/metabolismo , Inhibidores de la Colinesterasa/metabolismo , Hongos/metabolismo , Huperzia/microbiología , Acremonium/genética , Acremonium/metabolismo , Inhibidores de la Colinesterasa/aislamiento & purificación , Cromatografía en Capa Delgada , ADN de Hongos/química , ADN de Hongos/genética , ADN Ribosómico/química , ADN Ribosómico/genética , Compuestos de Diazonio/metabolismo , Hongos/clasificación , Hongos/genética , Hidrólisis , Ácidos Naftalenoacéticos/metabolismo , Filogenia , ARN Ribosómico 18S/clasificación , ARN Ribosómico 18S/genética , ARN Ribosómico 5.8S/clasificación , ARN Ribosómico 5.8S/genética , Análisis de Secuencia de ADN
10.
Chin J Integr Med ; 17(12): 945-9, 2011 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-22139547

RESUMEN

This paper suggests a novel approach concerning the medical treatment of human beings, which appears to be economically and practically superior to either biomedicine or traditional medicine. A brand new medical system-Hehe [see text] medicine, has been proposed based on a preventive-biomedical-psycho-social treatment model. This is characterized by a dual approach in which life nurturing is consistently practised and medical treatment is applied when necessary in order to maintain a healthy life. Its core value would facilitate the self-restoration to health and self-adaptation to nature through health cultivation and medical means. Medical services would be firstly provided to the prevention of potential disease germinating in the human body, and clinical medical treatment would be the last resort of systematic medical practice. This paper discusses not only this new concept but also the advantages of traditional Chinese medicine and biomedicine, especially how both medical systems compare in cognitive style, on a cultural level, and on a technical level.


Asunto(s)
Salud , Medicina Tradicional China , Medicina , Cognición , Humanos , Medicina Integrativa
11.
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi ; 27(8): 872-5, 2011 Aug.
Artículo en Chino | MEDLINE | ID: mdl-21806884

RESUMEN

AIM: To explore the mechanisms of adipose-derived stem cells (ADSCs) transplanting induced angiogenesis in rat brain after focal cerebral ischemia. METHODS: 108 male adult Sprague-Dawley rats were randomly assigned into 4 groups: sham-operated group, middle cerebral artery occlusion (MCAO) group, vehicle group and MCAO+ADSCs-treated group. Rat's focal cerebral ischemia model was established by right middle cerebral artery occlusion (MCAO) with modified Longa's method. ADSCs were pre-labeled by CFSE before the transplantation into the rat brain. At 1 d after MCAO, 30 µL cell suspension which contained 1×10(6); ADSCs was injected into the lateral ventricle of MCAO+ADSCs-treated rats, and the same dose of PBS was given to the rats of vehicle group as control. At 4 d, 7 d and 14 d after MCAO, rats were decapitated to detect the TGF-ß1 expression in the infarct area. RESULTS: The expression of TGF-ß1 in brain tissues in MCAO+ADSCs-treated group was significantly higher than MCAO group and vehicle group at 4 d, 7 d and 14 d after MCAO, respectively. After transplantation into MCAO rats, ADSCs could survive and express TGF-ß1 in the ischemic brain. CONCLUSION: These data suggest that ADSCs transplantation can promote revascularization in cerebral ischemic rats, partly by promoting TGF-ß1 expression in the brain.


Asunto(s)
Isquemia Encefálica/metabolismo , Trasplante de Células Madre , Factor de Crecimiento Transformador beta1/metabolismo , Animales , Encéfalo/metabolismo , Encéfalo/patología , Isquemia Encefálica/genética , Isquemia Encefálica/patología , Modelos Animales de Enfermedad , Regulación de la Expresión Génica , Masculino , ARN Mensajero/genética , Ratas , Ratas Sprague-Dawley , Factor de Crecimiento Transformador beta1/genética
12.
Zhongguo Dang Dai Er Ke Za Zhi ; 13(1): 50-2, 2011 Jan.
Artículo en Chino | MEDLINE | ID: mdl-21251388

RESUMEN

OBJECTIVE: This study examined the effect of recombinant human erythropoietin (r-HuEPO) on the serum levels of neuron-specific enolase (NSE), S-100ß protein and myelin basic protein (MBP) in young rats 24 hrs after lithium-pilocarpine-induced status epilepticus (SE) in order to study the potential role of r-HuEPO in epileptic brain damage. METHODS: Forty 19-21-day-old male Sprague-Dawley (SD) rats were randomly divided into four groups (n=10): normal control group, SE, r-HuEPO pretreated-SE and r-HuEPO. SE was induced by lithium-pilocarpine. R-HuEPO (500 IU/kg) was intraperitoneally injected in the r-HuEPO pretreated-SE and r-HuEPO groups 4 hrs before SE. Serum levels of NSE, S-100ß and MBP were determined 24 hrs after the SE event. RESULTS: Serum levels of NSE, S-100ß and MBP in the SE group increased significantly compared with those in the normal control and the r-HuEPO groups (P<0.05). The r-HuEPO pretreated-SE group showed significantly decreased serum levels of NSE, S-100ß and MBP compared with the SE group (P<0.05). CONCLUSIONS: r-HuEPO may reduce the expression of NSE, S-100ß and MBP and thus might provide an early protective effect against epileptic brain injury.


Asunto(s)
Eritropoyetina/uso terapéutico , Proteína Básica de Mielina/sangre , Factores de Crecimiento Nervioso/sangre , Fosfopiruvato Hidratasa/sangre , Proteínas S100/sangre , Estado Epiléptico/tratamiento farmacológico , Animales , Eritropoyetina/farmacología , Masculino , Ratas , Ratas Sprague-Dawley , Proteínas Recombinantes , Subunidad beta de la Proteína de Unión al Calcio S100 , Estado Epiléptico/sangre
13.
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi ; 27(1): 40-3, 2011 Jan.
Artículo en Chino | MEDLINE | ID: mdl-21208563

RESUMEN

AIM: To investigate the effects of adipose-derived stem cells (ADSCs) transplantation on neuronal apoptosis in the brain after focal cerebral ischemia in rats. METHODS: 72 male adult Sprague-Dawley rats were randomly divided into 4 groups: Sham-operated group , Middle cerebral artery occlusion (MCAO) group, Vehicle group and ADSC-treated group (n=18). MCAO model was established with the modified Longa's method. One day after right MCAO, 30 µL of cell suspension containing 1×10(6); cells were injected into the lateral ventricle of ADSC-treated group and the same dose of PBS was given to the vehicle group. At 4 d, 7 d and 14 d after MCAO, the apoptosis of neuron was detected by terminal deoxynucleotidyl transferase-mediated DNA nick-end labeling (TUNEL) method and the expression of Bcl-2 and caspase-12 in ischemic region was detected by immunohistochemistry and RT-PCR. RESULTS: TUNEL-positive cells in ischemic region of ADSC-treated group were less than that in MCAO group and Vehicle group at 4 d, 7 d and 14 d post MCAO (P<0.05). Compared with MCAO group and Vehicle group, the expression of Bcl-2 significantly up-regulated while caspase-12 expression significantly decreased in ADSC-treated group at any time point post MCAO (P<0.05). CONCLUSION: The transplantation of ADSCs can reduce neuronal apoptosis of rats with cerebral ischemic injury partly by promoting the expression of Bcl-2 which participates in apoptotic signals after mitochondrial damage and inhibiting the expression of caspase-12 which mediates endoplasmic reticulum (ER) stress-induced apoptosis.


Asunto(s)
Tejido Adiposo/citología , Apoptosis/fisiología , Isquemia Encefálica/cirugía , Caspasa 12/biosíntesis , Neuronas/metabolismo , Proteínas Proto-Oncogénicas c-bcl-2/biosíntesis , Trasplante de Células Madre/métodos , Tejido Adiposo/metabolismo , Animales , Encéfalo/irrigación sanguínea , Encéfalo/metabolismo , Encéfalo/patología , Lesiones Encefálicas/genética , Lesiones Encefálicas/metabolismo , Lesiones Encefálicas/cirugía , Isquemia Encefálica/genética , Isquemia Encefálica/metabolismo , Caspasa 12/genética , Caspasa 12/metabolismo , Células Cultivadas , Infarto de la Arteria Cerebral Media/genética , Masculino , Neuronas/patología , Proteínas Proto-Oncogénicas c-bcl-2/genética , Proteínas Proto-Oncogénicas c-bcl-2/metabolismo , Ratas , Ratas Sprague-Dawley , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Células Madre/citología
14.
Electron. j. biotechnol ; 13(5): 9-10, Sept. 2010. ilus, tab
Artículo en Inglés | LILACS | ID: lil-591891

RESUMEN

Although Agrobacterium-mediated transformation protocols for many economically important plant species have been well established, protocol for a number of flowering plants including Anthurium andraeanum remains challenging. In this study, we report success in generating transgenic Anthurium andraeanum cv Arizona using Agrobacterium GV3101 strain harboring a binary vector carrying gfp as a reporter gene. The possibility of facilitating the screening process for transgenic plants expressing functional proteins using gfp marker was explored. In order to realize high transformation efficiency, different explant sources including undifferentiated callus pieces and petioles were compared for their regeneration efficiency and susceptibility to Agrobacterium-mediated transformation. We also optimized the concentration of AS added to co-cultivation media. Genomic PCR revealed that 11 of the 22 resistant plantlets regenerated on selective medium were successfully transformed. Green fluorescence was observed using a fluorescence microscope in 7 of the 11 PCR-positive plants, indicating GFP was expressed stably in the transformed Anthurium andraeanum. The highest transformation efficiency obtained in this study was 1.71 percent (percentage of explants with transgenic shoots in total explants) when callus explants were used as starting material and 125 umol l-1 AS was added during the co-cultivation process.


Asunto(s)
Araceae/genética , Técnicas de Transferencia de Gen , Proteínas Fluorescentes Verdes/genética , Rhizobium/genética , ADN de Plantas/aislamiento & purificación , Técnicas de Cocultivo , Genes Reporteros , Microscopía Fluorescente , Reacción en Cadena de la Polimerasa , Plantas Modificadas Genéticamente/genética , Regeneración , Transformación Genética
17.
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi ; 25(11): 998-1001, 2009 Nov.
Artículo en Chino | MEDLINE | ID: mdl-19900366

RESUMEN

AIM: To explore the effects of adipose-derived stem cell (ADSC) transplantation on the expression of IL-10 amd TNF-alpha after cerebral ischaemia in Middle cerebral artery occlusion (MCAO) rats. METHODS: 72 male adult Sprague-Dawley rats were randomly divided into 4 groups: sham group, MCAO group, Vehicle group and ADSC group (n=18). Rat's cerebral ischemia model was established by MCAO with Longa's method. ADSC were labeled by DAPI before transplantation. One day after MCAO, 30 microL of cell suspension containing 1 x 10(6); ADSCs were injected into the lateral ventricle of ADSC group and the same dose of PBS was given to the Vehicle group. At day 4, day 7 and day 14 after MCAO, the rats were decapitated to detect the expression of IL-10 and TNF-alpha in ischaemic rat's brain by ELISA, immunohistochemistry and RT-PCR. RESULTS: Compared with sham group, the expression of IL-10 and TNF-alpha significantly up-regulated at 4 d, 7 d of MCAO group(P<0.05). There was no statistical difference of IL-10 and TNF-alpha expression between MCAO and vehicle group ant any time point(P>0.05). Compared with Vehicle group, the expression of IL-10 significantly up-regulated while TNF-alpha expression significantly decreased of ADSC-treated group at any timepoint post MCAO(P<0.05). CONCLUSION: The transplantation of ADSC could up-regulate the expression of IL-10 and down-regulate the expression of TNF-alpha in MCAO rat's brain, which might contribute to its protective role upon cerebral ischaemia.


Asunto(s)
Tejido Adiposo/citología , Isquemia Encefálica/metabolismo , Isquemia Encefálica/cirugía , Regulación de la Expresión Génica , Interleucina-10/metabolismo , Trasplante de Células Madre , Factor de Necrosis Tumoral alfa/metabolismo , Animales , Isquemia Encefálica/etiología , Infarto de la Arteria Cerebral Media/complicaciones , Interleucina-10/genética , Masculino , ARN Mensajero/genética , ARN Mensajero/metabolismo , Ratas , Ratas Sprague-Dawley , Factores de Tiempo , Factor de Necrosis Tumoral alfa/genética
18.
Zhongguo Gu Shang ; 22(9): 702-3, 2009 Sep.
Artículo en Chino | MEDLINE | ID: mdl-19817209

RESUMEN

OBJECTIVE: To analysis the reasons of fixation failure for intertrochanteric fractures, so as to select correct operation indications and fixation methods. METHODS: Retrospective analysis the clinical data of 13 patients with failed internal fixation of intertrochanteric fractures from September 1997 to September 2008, and the failure reasons were summarized. There were 7 males and 6 females,ranging in age from 58 to 93 years,averaged 71 years. Two patients were treated with intramedullary fixation, 4 patients with anatomical proximal femoral plate, 3 patients with DHS fixation, 2 patients with hollow compression screws, and 2 patients with external fixation. According to Evans types: 1 patient was type II, 7 patients were type III, and 5 patients were type IV. RESULTS: Eight patients with unstable fractures and malreduction had no grafted bone. Six patients had bad position of neck screws in the femur neck. Postoperative collodiaphyseal angle: 3 patients were under 90 degree, 7 patients 90 to 110 degree, and 3 patients 110 to 130 degree. Five patients had internal fixed screw exited, 6 patients had neck screws cutting to superior lateral, 3 patients had early weight bearing, and 10 patients were osteoporosis occurred after operation from 6 weeks to 11 months, averaged 4.5 months. CONCLUSION: The fixation failure of intertrochanteric fractures was concerned with fractures types, reduction, fixation methods, osteoporosis and the time of weight bearing.


Asunto(s)
Fijación Interna de Fracturas/métodos , Fracturas de Cadera/cirugía , Anciano , Anciano de 80 o más Años , Femenino , Fracturas de Cadera/diagnóstico por imagen , Humanos , Masculino , Persona de Mediana Edad , Radiografía , Estudios Retrospectivos , Resultado del Tratamiento
19.
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi ; 24(10): 958-61, 2008 Oct.
Artículo en Chino | MEDLINE | ID: mdl-18845078

RESUMEN

AIM: To investigate the effects of adipose-derived stem cell (ADSC) transplantation on the angiogenesis in the brain post focal cerebral ischemia in rats. METHODS: 72 male adult Sprague-Dawley rats were randomly divided into 4 groups: sham-operated group, middle cerebral artery occlusion (MCAO) group, vehicle group and MCAO+ADSC-treated group (n=18). A permenant focal cerebral ischemia model was established with the modified Longa's method. ADSC were labeled by DAPI before transplantation. One day after right MCAO, 30 muL of cell suspension containing 1x10(6) cells were injected into the lateral ventricle of MCAO+ADSC-treated group and the same dose of PBS was given to the vehicle group. On D4, D7 and D14 after MCAO, the rats were killed to detect the regeneration of microvessel and the expression of bFGF and VEGF in ischemic region by immunohistochemistry and RT-PCR. RESULTS: A lot of microvessel proliferate in the injured cortex reached peak in 2 weeks. The microvessel density in the brain tissues of rats treated with ADSC was higher than that in MCAO group and vehicle group (P<0.01). The expression of bFGF and VEGF in the brain tissues of MCAO+ADSC-treated group was higher than that in MCAO group and vehicle group on D4, D7 and D14 post MCAO. CONCLUSION: The transplantation of ADSC can promote the revascularization of cerebral ischemia in rats partly by enhancing bFGF and VEGF synthesis in brain.


Asunto(s)
Tejido Adiposo/citología , Isquemia Encefálica/metabolismo , Isquemia Encefálica/terapia , Neovascularización Fisiológica/fisiología , Trasplante de Células Madre/métodos , Animales , Antígenos CD34/inmunología , Factor 2 de Crecimiento de Fibroblastos/genética , Factor 2 de Crecimiento de Fibroblastos/fisiología , Citometría de Flujo , Inmunohistoquímica , Antígenos Comunes de Leucocito/inmunología , Masculino , Neovascularización Fisiológica/genética , Distribución Aleatoria , Ratas , Ratas Sprague-Dawley , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Antígenos Thy-1/inmunología , Factores de Crecimiento Endotelial Vascular/genética , Factores de Crecimiento Endotelial Vascular/fisiología
20.
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi ; 24(1): 34-7, 2008 Jan.
Artículo en Chino | MEDLINE | ID: mdl-18177615

RESUMEN

AIM: To investigate the effects of bone marrow-derived mesenchymal stem cells (BMSC) transplantation on the recovery of neurological functions and the expression of synaptophysin in focal cerebral infarction in rats. METHODS: 72 male adult Sprague-Dawley rats were randomly divided into 4 groups (18 in each group): shamoperated group, middle cerebral artery occlusion (MCAO) roup,vehicle group and MCAO+BMSC-treated group. A permanent focal cerebral ischemia model was established using modified Longa's method. BMSC was labeled by DAPI before the transplantation. One day after right middle cerebral artery occlusion(MCAO), 1 x 10(6) cells were injected into the lateral ventricle of rats in BMSCs-treated group and the same dose of PBS was given to the rats in vehicle group. Before sacrificed and at 4 d, 7 d and 14 d after MCAO, the neurological functions were tested by balance beam, rota-rod and screen prehensile and the synaptophysin was detected by reverse transcriptase-polymerase chain reaction (RT-PCR) and immunohistochemical method. RESULTS: DAPI stained positive cells were observed around the cerebral infarcted area in the BMSC-treated group. Compared with the MCAO group and the vehicle group,the neurological functions in BMSC-treated group were better on 7 d and 14 d after MCAO (P<0.05 or P<0.01), and the synaptophysin around the cerebral infarcted area was significantly upregulated on 4 d, 7 d and 14 d after MCAO (all P<0.01). CONCLUSION: BMSC transplantation can improve the neurological functions by upregulating the expression of synaptophysin after MCAO in rats.


Asunto(s)
Infarto Cerebral/metabolismo , Sinaptofisina/metabolismo , Adulto , Animales , Infarto Cerebral/genética , Capacidad Residual Funcional , Expresión Génica , Humanos , Macrófagos , Masculino , Trasplante de Células Madre Mesenquimatosas , Ratas , Ratas Sprague-Dawley , Sinaptofisina/genética
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