1.Cerebral palsy in children with prematurity and its comorbidities
Dianrong SUN ; Mei HOU ; Wenyan LI ; Tanfeng DOU ; Rong YU ; Ke WANG
Chinese Journal of Physical Medicine and Rehabilitation 2010;32(12):911-914
Objective To analyze the comorbidities and gross motor function classifications (GMFCs) of premature children with cerebral palsy (CP) in terms of neurological subtype and gestational age in search of some relationship. Methods Children with cerebral palsy treated at the Qingdao Children's Hospital from 2006 to mid2009 received intelligence capacity tests, ophthalmological consultations, language/speech tests, brainstem auditory evoked potential measurements, electroencephalograms and GMFC evaluations. All of the children were stratified according to neurological subtype, gestational age, comorbidities and gross motor function classification. Results Of all 258 children, spastic diplegic cerebral palsy predominated (183 case, 70.9% ). 124 cases (48.1% ) had visual disorders, 121 (46.9%) had language or speech disorders and 103 (39.9%) showed mental retardation. The frequencies of individual comorbidities were distributed disproportionately between the different neurologic subtypes.GMFC levels also differed with the different CP types. The GMFC levels of diplegics were significantly better than those of the other types. The distribution of comorbidities such as visual disorders, language or speech disorders, and mental retardation was not related to gestational age or type of CP. Conclusions There is some correlation between the neurological subtype, comorbidities and the GMFC levels. But there is no significant correlation between gestation age and the severity of CP.
2.Isolation, purification and identification of epithelial cells derived from fetal islet-like cell clusters.
Hai QIAO ; Ting ZHAO ; Yun WANG ; Chun-Rong YANG ; Mei XIAO ; Zhong-Ying DOU
Chinese Journal of Biotechnology 2007;23(2):246-251
The aim of this article is to provide methods for the isolation and identification of pancreatic stem cells and cell source for research and therapy of diabetes. ICCs were isolated by collagenase IV digesting and then cultured; epithelial cells were purified from monolayer cultured ICCs. The growth curve of the epithelial cells was measured by MTT. The expression of molecular markers in the cells was identified by immunohistochemical staining. The surface markers in the epithelial cells were analyzed by FACS. Epithelial cells were purified from isolated human fetal ICCs and passaged 40 times, and 10(6) - 10(8) cells were cryopreservated per passage. The growth curve demonstrated that the epithelial cells proliferated rapidly. The epithelial cells expressed PDX-1, PCNA, CK-7, CK-19, Nestin, Glut2, and Vimentin, but Insulin was undetected. The cells expressed CD29, CD44, and CD166, but did not express CD11a, CD14, CD34, CD45, CD90, CD105, and CD117. Taken together, these results indicate that self-renewable epithelial cells can be isolated and purified from human fetal pancreas. These also show that the epithelial cells originate from ducts and have the characteristics of pancreatic stem cells.
Cell Culture Techniques
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Cell Proliferation
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Cell Separation
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Cell Survival
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Cells, Cultured
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Epithelial Cells
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cytology
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metabolism
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Fetus
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Flow Cytometry
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Homeodomain Proteins
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analysis
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Humans
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Hyaluronan Receptors
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analysis
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Immunohistochemistry
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Integrin beta1
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analysis
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Islets of Langerhans
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Proliferating Cell Nuclear Antigen
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analysis
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Stem Cells
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cytology
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metabolism
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Trans-Activators
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analysis
3.Epidemiological characteristics and molecular typing of Salmonella in Beijing from 2008 to 2009.
Mei QU ; Fang HUANG ; Xin ZHANG ; Dai-tao ZHANG ; Gui-rong LIU ; Zhi-Gang CUI ; Han-qiu YAN ; Yuan LIU ; Zhan-ying HE ; Xiang-feng DOU ; Biao KAN ; Quan-yi WANG
Chinese Journal of Preventive Medicine 2011;45(2):113-117
OBJECTIVETo study the epidemiological characteristics and molecular phenotypes of Salmonella by pulsed-field gel electrophoresis (PFGE) in Beijing from 2008 to 2009.
METHODSA total of one hundred thirty-seven isolates recovered from the WHO Global Salmonella Surveillance system and entero clinic surveillance system were identified by biochemical tests and serotyping. The related epidemiological informations were also analyzed. The isolates were further typed by PFGE.
RESULTSThe prevalence of Salmonella from 2008 to 2009 showed obvious seasonal character. High incidence occurred from June to September, and 64.1% (84/131) isolates were recovered in this period. Patients of 18 - 40 year-old were 46.1% (58/128) and 80 patients were male and 40 patients were female with the ratio of 1.57:1. These 137 Salmonella isolates belonged to 20 serotypes, including Enteritidis (46.7%, 64/137) and Typhimurium (17.5%, 24/137) as the dominant serotype. In total, 71 PFGE profiles were identified. Four PFGE patterns of S. Enteritidis isolates (JEGX01.CN0001, JEGX01.CN0003, JEGX01.CN0002, JEGX01.CN0019) and S. Typhimurium pattern of JPXX01.CN0001 were dominant patterns.
CONCLUSIONThe prevalence of Salmonella from 2008 to 2009 showed distribution characteristics of sex, age and seasons. The numerous PFGE patterns of Salmonella showed diversity of these isolates and different clones existed in Beijing.
Adolescent ; Adult ; Bacterial Typing Techniques ; China ; epidemiology ; DNA, Bacterial ; isolation & purification ; Electrophoresis, Gel, Pulsed-Field ; Female ; Food Microbiology ; Humans ; Male ; Molecular Typing ; Salmonella ; classification ; genetics ; isolation & purification ; Salmonella Infections ; epidemiology ; microbiology ; Serotyping ; Young Adult
4.Effect of arotinolol on left ventricular function in patients with idiopathic dilated cardiomyopathy.
Chao-mei FAN ; Hong YANG ; Yi-shi LI ; Li XU ; Ke-fei DOU ; Jing-lin ZHAO ; Xian-qi YUAN ; Yan-fen ZHAO ; Rong-fang SHI ; Xiu-qing DU ; Na-qiang LU
Chinese Medical Sciences Journal 2007;22(4):224-227
OBJECTIVETo evaluate the efficacy and safety of long-term treatment with arotinolol in patients with idiopathic dilated cardiomyopathy (IDCM).
METHODSSixty-three patients with IDCM were evaluated at baseline and after 12-month therapy with arotinolol. The conventional therapy for congestive heart failure was continued throughout the study with arotinolol as the only beta-blocker. Left ventricular function was assessed with the New York Heart Association functional class and two-dimensional echocardiography.
RESULTSAfter 12-month arotinolol treatment, there was a significant improvement in left ventricular systolic function. Left ventricular end-systolic dimension significantly decreased from 59.52 +/- 8.83 mm to 50.89 +/- 8.17 mm (P < 0.001). Left ventricular ejection fraction significantly increased from 27.39% +/- 7.94% to 41.13% +/- 9.45% ( P < 0.001). Left ventricular mass index decreased from 150.47 +/- 42.42 g/m2 to 141.58 +/- 34.36 g/m2 (P < 0.01). No adverse events leading to premature discontinuation of study drug occurred.
CONCLUSIONIn this preliminary study, 12-month arotinolol treatment has a favorable effect on left ventricular function in patients with IDCM, and it is safe and well tolerated.
Adrenergic beta-Antagonists ; adverse effects ; pharmacology ; therapeutic use ; Adult ; Cardiomyopathy, Dilated ; drug therapy ; physiopathology ; Echocardiography ; Female ; Humans ; Male ; Middle Aged ; Propanolamines ; adverse effects ; pharmacology ; therapeutic use ; Ventricular Function, Left ; drug effects
5.Advances on anti-tumor mechanisms of zerumbone.
Hong YANG ; Rong-Mei DOU ; Ting YAO ; Dao-Peng GUI ; Xue-Wen JANG ; Jun-Jun LI ; Fu-Xing GE ; Xiao-Li GAO ; Xing-Yun CHAI
China Journal of Chinese Materia Medica 2020;45(12):2817-2826
Zerumbone(ZER), one of humulane-type sesquiterpenoids, showed its unique advantage against tumor activities. The main underlying mechanisms include inhibiting the growth and proliferation of cancer cells, inducing apoptosis of cancer cells and differentiation of cancer cells, regulating immune function, inhibiting invasion and metastasis of cancer cells, and reversing multidrug resistance of cancer cells. Studies on ZER focusing its cytotoxic or anti-tumor is one of hot topic. Currently, with the increasing studies on ZER, the clarified mechanisms are getting rich. The present paper describes a summary of its anti-tumor mechanism of action and helps to provide significant reference to more in-depth research.
Antineoplastic Agents
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pharmacology
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Apoptosis
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drug effects
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Cell Line, Tumor
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Sesquiterpenes
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pharmacology
6.Research progress of microparticles in traditional Chinese medicine decoction
Yu-fang WEI ; Zhi-ying DOU ; Chuan-shan JIN ; Rui-xi LI ; Zi-wen ZHAO ; Ding-ding WANG ; Yu-mei LIU ; Zhuo-er YANG ; Rong-feng HU ; Yu-zhou CHEN
Acta Pharmaceutica Sinica 2023;58(2):339-350
Decoction is a classical dosage form of traditional Chinese medicines. In the process of decocting, various complex components produce physical interactions and chemical reactions, among which physical interactions include van der Waals force, hydrogen bond, electrostatic interaction,