1.Drug treatment of poststroke aphasia
International Journal of Cerebrovascular Diseases 2010;18(10):745-749
Aphasia is one of the common neurological symptoms of stroke, which can seriously affect the social skills and self-care ability of patients, therefore it imposes a heavy burden on the family and society. In recent years, drug treatment of poststroke aphasia has received extensive attention. Some drugs that can affect monoamine, cholinergic and amino acid neurotransmitters have demonstrated a certain efficacy of poststroke aphasia. This article reviews the recent progress in research on drug treatment of poststroke aphasia.
2.Surgical Treatment of Primary Bronchogenic Carcinoma in 3568 Cases
Shiye LI ; Shaofa XU ; Xiaojia CHEN
Chinese Journal of Thoracic and Cardiovascular Surgery 1995;0(05):-
This paper summerized the surgical treatment of primary bronchogenic carcinoma in 3568 cases between 1957-1991. The resectability rate was 90. 3%, postoperative morbidity rate 8.32% and operative mortality 0. 89%. Pathological diagnoses of the resected specimens included squa-mous cell carcinoma for 48.7%, adenocarcinoma 22.9%, small cell cancer 15. 4%, large cell cancer 1. 3% and squa-mous-adenocarcinoma in 10.1%. The follow-up rate was 93%. The 5-and 10-year survival rates were 34.6% and 22.79% respectively. Analyses of the data demonstratad that the histologic type, pathological stage and metastasis of mediastinal lymph node are the important factors affecting the prognosis. According to UICC P-TNM,42. 6% of the patients in this group were in stage III. The 5 year survival rate was 19% in IIIa patients and 6% in IIIb. According to authors experience, it is recommended that in IIIa patients with nonsmall cell cardinoma, active surgical treatment should be adopted; in patients with small cell carcinoma, chemotherapy and radiotherapy should be given pre-and postoperatively, in IIIb patients with small cell carcinoma, surgical treatment is generally not indicated.
3.Validation of Stroke Aphasic Depression Questionnaire Hospital Version: comparison with HAMD-17 and BDI-13
Weiqing WANG ; Xuan XU ; Xiaojia LIU ; Dong CHEN ; Xinyu WANG
International Journal of Cerebrovascular Diseases 2011;19(5):376-380
Objective To preliminarily investigate the cutoff value of Stroke Aphasic Depression Questionnaire Hospital Version (SADQ-H) in the diagnosis of post-stroke depression. Methods Using receiver operating characteristic (ROC) curves, the total scores of 17-item Hamilton Depression Rating Scale (HAMD-17) greater than 7 points and Beck Depression Inventory (BDI-13) greater than 4 points were taken as the cutoff values for the assessment of depression. SADQ-H for the assessment of the depression classification standard in patients with post-stroke aphasia was investigated preliminarily by HAMD-17 (8-17 were mild depression; 18-24 were moderate depression, and>24 was severe depression). Results When HAMD-17 was used as a standard, ROC area under curve (AUC) was 0. 909 (95% confidence interval [CI] 0.814-1.005). When 19.50 was used as a cutoff value, the sensitivity, specificity, positive predictive value, negative predictive value, and κ coefficient of SADQ-H were 82. 6%,91.7%, 87. 0%, 83.3%, and 0. 77, respectively. When BDI-13 was used as a standard, ROC AUC was 0. 916 (95% CI 0. 824-1. 008). When choosing 18.50 as a cutoff value of diagnosis,the sensitivity, specificity, positive predictive value, negative predictive value, and κ coefficient of SADQ-H were 80. 0%, 90. 0%, 84. 0%, 90. 0%, and 0. 68, respectively. The classification standards of SADQ-H for the assessment of depression in patients with post-stroke aphasia were 19, 22 and 26 points. Conclusions When the cutoff value of SADQ-H was 19 points, it had higher sensitivity, specificity, positive predictive value and negative predictive value for the assessment of depression; 19, 22 and 26 points could be used as the classification diagnostic standard of SADQ-H in the assessment of depression in patients with post-stroke aphasia.
4.Development of cell-penetrating peptides as vectors for drug delivery.
Jin REN ; Chuanguang QIN ; Chunlan XU ; Qiuyu WANG ; Xiaojia ZUO
Acta Pharmaceutica Sinica 2010;45(1):17-25
Biomacromolecules play an important role in the treatment of many diseases, but as a result of cell membrane serving as the natural barriers, only the small molecular compounds whose molecular weights are smaller than 600 Da can get through cell membrane and enter the cell. In recent years, some short peptides (the length less than 30 amino acids) are found to have the cell-penetrating function, called cell-penetrating peptides (CPPs). They are able to effectively translocate segments of protein, polypeptides, nucleic acid into the cells of many mammal animals with many methods. They have high transduction efficiency and will not lead to cell damage. So, the discovery of CPPs has a very good applicable prospect in such research fields as cell-biology, gene-therapy, drug transduction in vivo, evaluation of clinical medicine and medical immunology. This paper reviews the types and characteristics of CPPs, internalization mechanisms, applications, and their existing problems.
5.Development of cell-penetrating peptides as vectors for drug delivery
Jin REN ; Chuanguang QIN ; Chunlan XU ; Qiuyu WANG ; Xiaojia ZUO
Acta Pharmaceutica Sinica 2010;0(01):-
Biomacromolecules play an important role in the treatment of many diseases, but as a result of cell membrane serving as the natural barriers, only the small molecular compounds whose molecular weights are smaller than 600 Da can get through cell membrane and enter the cell. In recent years, some short peptides (the length less than 30 amino acids) are found to have the cell-penetrating function, called cell-penetrating peptides (CPPs). They are able to effectively translocate segments of protein, polypeptides, nucleic acid into the cells of many mammal animals with many methods. They have high transduction efficiency and will not lead to cell damage. So, the discovery of CPPs has a very good applicable prospect in such research fields as cell-biology, gene-therapy, drug transduction in vivo, evaluation of clinical medicine and medical immunology. This paper reviews the types and characteristics of CPPs, internalization mechanisms, applications, and their existing problems.
6.Effects of stromal cell-derived-1αon the cell proliferation in primary cultured rat astrocytes
Xiaojia HUANG ; Jing LI ; Xiao XU ; Yongjin LI
Chinese Pharmacological Bulletin 2014;(9):1219-1224
Aim To investigate the effects of stromal cell-derived factor-1α ( SDF-1α) on cell proliferation in primary cultured rat astrocytes and the possible mechanisms. Methods The primary cultured rat astr-cytes were treated with recombinant human SDF-1α at different concentrations, the cell proliferation was as-sessed by cell counting and 5-bromo-2’-deoxyuridine incorporation assay;intracellular calcium concentration was detected with calcium sensitive fluorescent probe;phorphorylation of extracellular regulated protein ki-nase1/2 ( ERK1/2 ) was determined by Western blot analysis;cell cycle transition was analyzed by flow cy-tometry analysis; mRNA expressions of cyclin A2 and cyclin B1 were determined by quantitative RT-PCR. Results Treatment of astrocytes with SDF-1α (5 -40 nmol·L-1 ) for 48 h induced significant cell prolifera-tion. SDF-1α at 20 nmol·L-1 increased the intracel-lular calcium concentration and the phosphorylation of ERK1/2. In addition, SDF-1α at 20 nmol·L-1 pro-moted the cell cycle transition from G0 to S and M pha-ses, and up-regulated the mRNA expressions of Cyclin A2 and Cyclin B1 . Conclusion SDF-1α significantly induces cell proliferation in primary cultured rat astro-cytes via enhancing calcium influx, ERK1/2 phospho-rylation, Cyclin expression and promoting cell cycle transition.
7.The characteristics of post-stroke depression in patients with aphasia
Xuan XU ; Weiqing WANG ; Xiaojia LIU ; Dong CHEN ; Xinyu WANG
Chinese Journal of Behavioral Medicine and Brain Science 2011;20(2):143-145
Objective To compare the characteristics of post-stroke depression in patients with and without aphasia.Methods Seventy patients on the first infarction with aphasia and 70 stroke patients without aphasia were recruited.The aphasia deficits in patients were evaluated by using the Aphasia Battery of Chinese ( Aphasia Battery of Chinese, ABC) .The Stroke Aphasic Depression Questionnaire Hospital Version ( Stroke Aphasic Depression Questionnaire Hospital Version, SADQ-H) was applied to analyze the depression in the two groups.Results The sore in SADQ-H of the aphasia group was significantly higher than the control group( (22.03 ±9.55 )vs ( 16.81 ± 10.47 ), P < 0.01 ) .Loss interest, anhedonia, social avoidance, irritability, depression, decreased attention were more serious in patients with aphasia after stroke than that without aphasia.Compared with control group ,the incidence of depression in aphasia group was higher(64.28% vs 50.00% ).The incidence in different types of aphasia: the complete aphasia ( 78.26% ), transcortical mixed aphasia ( 62.50% ), Broca ( 61.53% ),Werincke (62.50%).There was significantly correlation between the incidence of depression and the severity of aphasia.Conclusion The incidence of depression in stroke patients with aphasia is high,especially who have complete aphasia, transcortical mixed aphasia, Broca and Werincke, and it closely relate to the severity of aphasia.
8.Regulation of liensinine on T24 bladder cancer cell proliferation and cycle
Qi YAN ; Tianyu ZHANG ; Ning TAN ; Bing XU ; Lingli XU ; Xiaojia LIU
Chongqing Medicine 2014;(25):3268-3271
Objective To study the effect of liensinine on the proliferation of human bladder cancer T24 cells.Methods T24 cells were treated with different concentrations of liensinine.Its influence on the cell proliferation was detected by the CCK-8 exper-iment and the clonogenic experiment.After staining of T24 cells,the influence of liensinine on the cell cycle was examined by the flow cytometry.The mRNA change of p2 1 gene was determined by real-time quantitative PCR.Results Compared with the con-trol,liensinine significantly inhibited the proliferation of T24 cells in different doses groups(1.562 5,3.125 0,6.250 0,12.500 0, 25.000 0μg/mL),the differences had statistical significance and showed the dose-dependence;the cell cycle detection results re-vealed that liensinine arrested the T24 cells at the S phase;the real-time quantitative PCR detection results showed that liensinine increased mRNA of p21 gene in T24 cells.Conclusion Liensinine inhibits the proliferation of T24 bladder cancer cells and arrests the T24 cells at S phase,its mechanism may be related with the upregulation of p21 expression.
9.Liensinine promotes apoptosis of bladder cancer 5637 cells and enhances Caspase-7 expression and activation
Bin XU ; Tianyu ZHANG ; Ning TAN ; Qi YAN ; Lingli XU ; Xiaojia LIU ; Li GAO
Tianjin Medical Journal 2015;(7):724-727
Objective To study the effects of Liensinine on apoptosis of 5637 cells, and its mechanism thereof. Meth?ods CCK-8 method and the colony formation test were used to detect cell viabilities, and then inhibition rates were calcu?lated. Flow cytometry was used to detect the effects of Liensinine on apoptosis of 5637 cells. Western blot assay was used to detect Caspase-7 protein expression. Results CCK-8 assay and colony formation test indicated that Liensinine inhibited the cell proliferation significantly. Results of flow cytometry indicated that Liensinine induced early apoptosis of 5637 cells. Western blot assay showed that Liensinine improved the expression of Caspase-7 and enhanced the activation of Caspase-7 in 5637 cells. Conclusion Liensinine could inhibit the proliferation of 5637 cells, induce early apoptosis, which may be re?lated with the enhanced expression of Caspase-7 and its activation.
10.Pregnancy and breast cancer.
Xianghui DU ; Yaping XU ; Hongjian YANG ; Xiaojia WANG
Chinese Journal of Oncology 2014;36(4):241-244
Abnormalities, Drug-Induced
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etiology
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Abnormalities, Radiation-Induced
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etiology
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Antineoplastic Agents
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adverse effects
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Breast Neoplasms
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diagnosis
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therapy
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Contraindications
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Female
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Humans
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Mastectomy
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Neoplasm Staging
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Pregnancy
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Pregnancy Complications, Neoplastic
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diagnosis
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therapy
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Prognosis
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Radiotherapy
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adverse effects
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Risk Assessment
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Risk Factors
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Sentinel Lymph Node Biopsy