1.Mesangial cells proliferation induced by high glucose is regulated by macrophage cytokine resistin via activating p38MAPK signal pathway
Jiao MU ; Defu JIA ; Fahuan YUAN
Chinese Journal of Nephrology 2008;24(11):832-837
Objective To investigate the effects of resistin on mesangial cells proliferation induced by high glucose and subsequent change of p38MAPK signal pathway. Methods Human macrophrages were cultured and treated with adenovirus encoding for resistin (Ad-resistin) for 48 h and were then co-cultured with human mesangial cells stimulated by high glucose for another 48 h. Mesangial ceils were harvested and their proliferation was measured by 3H-TdR. Activator protein 1 (AP-1) was examined by immunocytochemistry and laminin of excellular matrix was observed with immuofluorescence. Protein levels of p38MAPK and TGF-β1 were measured by Western blot. Smad2 phosphatase activity was aslo detected by Western blot. Results The mRNA and protein levels of resistin were significantly higher in Ad-resistin treated macrophages than those in Ad treated cells (P<0.01). Over-expression of resistin up-regulated p38MAPK protein levels of human mesangial cells(P<0.05). Resistin also promoted the proliferation of mesangial cells (P<0.01) and the synthesis of laminin stimulated by high glucose. The expression of TGF-β1 and phosphorylation of Smad2 were up-regulated in the mesangial cells (P< 0.05). Conclusion Macrophage cytokine resistin may promote mesangial cells proliferation and abnormal accumulation of excellular matrix stimulated by high glucose via activating p38MAPK signal passway.
2.Construction of compound membrane with corneal stromal cells and collagen-chitosan and its biocompatibility
Hui JIA ; Jiao WANG ; Yuan HU ; Yuan ZHANG ; Bing ZHANG
Journal of Jilin University(Medicine Edition) 2006;0(03):-
Objective To investigate the construction of compound membrane with corneal stromal cells and collagen-chitosan by tissue engineering technique and its biocompatibility.Methods Rabbit and human corneal stromal cells were separated and seeded into collagen-chitosan membrane.The compound membrane was transplanted into rabbit corneal stroma.Then the growth condition of keratocytes,the effect on normal keratocytes and degradation of compound membrane were detected by corneal confocal microscope,anterior OCT and histological and immunohistochemical methods ex vivo 1,2,4 weeks after grafting.Results The rabbit and human corneal stromal cells grown well in collagen-chitosan scaffold.The compound membrane degradated gradually after grafting.There was no necrosis and dissolvation.Corneal epithelium,stroma and endothelial cells were all normal.Conclusion Collagen-chitosan can be used as a biological scaffold for construction of corneal stroma.Corneal confocal microscopy and anterior OCT are new methods to observe the biological activity of constructed corneal stroma.
3.Effect of Acupoint Magnetic Therapy on Mild Cognitive Impairment
Tingting TAN ; Dan WANG ; Xu YUAN ; Xinyan JIA ; Xiaomei ZHOU ; Jiao SHI ; Shangjie CHEN
Chinese Journal of Rehabilitation Theory and Practice 2017;23(3):266-269
Objective To observe the effects of mind-regulating brain-developing acupoint magnetic therapy in patients with mild cogni-tive impairment (MCI). Methods From May to October, 2015, 60 patients with MCI were randomly divided into control group (n=30) and observation group (n=30). The control group received magnetic therapy on Yangming meridians, and the observation group received magnet-ic therapy on mind-regulating brain-developing acupoints, for two months. They were assessed with Montreal Cognitive Assessment (Mo-CA), digit-span and digit symbol of Wechsler Adult Intelligence Scale (WAIS). Results After treatment, the scores of MoCA, digit-span and digit symbol of WAIS significantly increased in the observation group (t>4.858, P<0.001), and were higher than that in the control group (t>2.188, P<0.05), however, only the scores of MoCA and digit symbol of WAIS significantly increased in the control group (t>5.527, P<0.001). The scores of visual space and execution, and delayed recall of MoCA increased in the observation group (t>2.324, P<0.05), and were higher than that in the control group (t>2.262, P<0.05) after treatment, and no significant difference was found in other domains (P>0.05). Conclusion Magnetic therapy on acupoints related with cognition could improve the cognitive function in patients with MCI.
4.MRI demonstrates abnormalities of motor nerves and extraocular muscles in congenital fibrosis syndrome due to mutations in KIF21 A
Yong-Hong, JIAO ; Shao-Qin, WU ; Feng-Yuan, MAN ; Hong-Yan, JIA ; Gang, LIU ; Nan, LIN
International Eye Science 2014;(8):1426-1429
AIM:To observe the structural basis of ocular motility abnormalities in patients with congenital fibrosis of the extraocular muscles type Ⅰ ( CFEOM Ⅰ) due to missense mutations in the developmental kinesin KIF21A using high - resolution magnetic resonance imaging ( MRI) .
METHODS: Totally 11 affected individuals reported KIF21A mutations were correlated with MRI studies demonstrating extraocular muscles ( EOMs ) size, location, contractility, and innervation. EOMs and the motor nerve in the orbits were imaged with T1 weighted in a triplanar scan using a dual-phased coils with 2. 0mm thick. Motor nerves were imaged at the brainstem using head coils and 3D-FIESTA with 0. 6-mm thick.
RESULTS: Patients with CFEOM Ⅰ exhibited different degrees of hypoplasia of oculomotor nerve, the abducens nerve and the trochlear nerve were also affected, of which 8 cases of orbital section could see the signal of abnormal nerve dominated by oculomotor nerve to lateral rectus. The both sides of six EOMS in all patients exhibited variable atrophy and abnormal bright internal signal on T1 imaging, particularly severe for the superior rectus and levator muscles.
CONCLUSION: High - resolution MRI can directly demonstrate pathology of motor nerves,affected EOMs, and ‘Pulley' hypoplasia caused by CFEOM Ⅰ due to mutations in KIF21A,and these findings suggest that the neuronal hypoplasia is the etiological factor of CFEOM.
5.The security of epilepsy patients use both donepezil and transcranial magnetic stimulation
Rui JIAO ; Xinyan JIA ; Xu YUAN ; Jie GAO ; Li SHE ; Wenfang GAO ; Sheng OU ; Shufang YU
Journal of Chinese Physician 2016;(z1):242-244
Epilepsy is a complications of brain injury or stroke,and is a common diseases in reha-bilitation or neurology department.Transcranial magnetic stimulation as a classical treatment means for stroke or brain injury,but also can promote the recovery of epilepsy.However,there is no clear clinical re-port for safety of epilepsy patients use both donepezil and transcranial magnetic stimulation .The article re-views the literature.Clinicians maybe provided some help.
6.Antidiabetic drugs of plant origin used in China: compositions, pharmacology, and hypoglycemic mechanisms.
Wei JIA ; Wen-yuan GAO ; Pei-gen XIAO
China Journal of Chinese Materia Medica 2003;28(2):108-113
The paper reviewed compositions and pharmacological effects of eight antidiabetic herbal drugs that have been approved by health regulatory agency for commercial use in China. Investigators attributed the hypoglycemic effect of these products to their ability to restore the functions of pancreatic tissues and cause an increase in insulin output, to inhibit the intestinal absorption of glucose, or to the facilitation of metabolites in insulin-dependent processes. Treatment with herbal drugs has an effect on protecting beta cells and smoothing out fluctuations in glucose levels. The use of these naturally derived agents in conjunction with conventional drug treatments such as an chemical agent or insulin permits the use of lower doses of the drug and/or decreased frequency of administration which decreases the side effects most commonly observed.
Animals
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Astragalus Plant
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chemistry
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Blood Glucose
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metabolism
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Diabetes Mellitus
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drug therapy
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metabolism
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Drug Combinations
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Drugs, Chinese Herbal
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chemistry
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isolation & purification
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pharmacology
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therapeutic use
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Humans
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Hypoglycemic Agents
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administration & dosage
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pharmacology
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therapeutic use
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Insulin Resistance
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Panax
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chemistry
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Phytotherapy
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Plants, Medicinal
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chemistry
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Rehmannia
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chemistry
7.Analysis of matrine and oxymatrine in Kushensu injection by UPLC/Q-TOF-MS.
Mao YE ; Guo-xiang XIE ; Ai-hua ZHAO ; Yuan-yuan ZHANG ; Wei JIA
China Journal of Chinese Materia Medica 2008;33(12):1398-1401
OBJECTIVETo develop a method for the determination of matrine and oxymatrine in Kushensu injection by ultra performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC/Q-TOF-MS).
METHODThe analysis was performed on a Acquity UPLC BEH C18 column (2.1 mm x 100 mm, 1.7 microm) with the gradient elution of 10 mmol x L(-1) amine acetate (pH 8, adjusted by aqueous ammonia) and methanol. The flow rate was set as 0.30 mL x min(-1). The column temperature was maintained at 30 degrees C. The peaks were detected at 210 nm and the injection volume was 2 microL.
RESULTThe calibration curves showed good linearity within the test ranges of 0.084-3.36 microg for matrine and 0.086-3.44 microg for oxymatrine, respectively. The mean recoveries were 103.2%, 98.7%, and the RSD were 1.5%, 1.2%, respectively.
CONCLUSIONThe established method is simple, rapid and sensitive, can be used for the quality control of matrine and oxymatrine in Kushensu injection through the manufacturing process and clinical implement.
Alkaloids ; analysis ; Calibration ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; Injections ; Linear Models ; Quinolizines ; analysis ; Reproducibility of Results ; Sensitivity and Specificity ; Spectrometry, Mass, Electrospray Ionization ; Time Factors
8.First 30 endobronchial ultrasound-guided transbronchial needle aspirations: a single institution's early experience.
Jia-Yuan SUN ; Heng ZHAO ; Jie ZHANG ; Xiang-Dong WANG ; Bao-Hui HAN
Chinese Medical Journal 2011;124(12):1818-1823
BACKGROUNDA new technique developed in 2002, real time endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA), has been one of the most important tools in lymph nodes (LNs) staging before lung cancer surgery. EBUS-TBNA was introduced into China in 2008.
METHODSBetween June 2009 and October 2009, 30 patients with mediastinal/hilar lymphadenopathy and thoracic masses previously detected with CT scan underwent EBUS-TBNA without rapid onsite cytological examination.
RESULTSFrom 30 patients, 33 samples were obtained from LNs and seven samples from intrapulmonary lesions. Twenty out of the 23 lung cancer diagnoses were clarified through the procedure, with sensitivity, specificity, positive predictive value, negative predictive value and accuracy being 87%, 100%, 100%, 70% and 90%, respectively. All three false negative cases were found in the first five procedures. Additionally, among the 33 LNs examined, three specimens that had no lymphocytes were also found within the first five procedures. There were no major complications, and the procedures were uneventful.
CONCLUSIONSEBUS-TBNA seems a safe and effective technique in making diagnosis for mediastinal/hilar LNs and intrapulmonary masses. For pulmonologists experienced in bronchoscopy, the sensitivity of the procedure for diagnosing lung cancer should be no less than 90% after the initial five procedures.
Adult ; Aged ; Aged, 80 and over ; Biopsy, Fine-Needle ; methods ; Bronchoscopy ; methods ; Endosonography ; methods ; Female ; Humans ; Lung Neoplasms ; diagnosis ; pathology ; Male ; Middle Aged
9.Combined and sequential treatment of oral and maxillofacial malignancies: an evolving concept and clinical protocol.
Jia-wei ZHENG ; Wei-liu QIU ; Zhi-yuan ZHANG
Chinese Medical Journal 2008;121(19):1945-1952
OBJECTIVETo introduce the concept and rational regimens and present the latest development of combined treatment of oral and maxillofacial malignancies. Data sources The related published literature was searched through the CNKI database and MEDLINE using the terms of oral cancer, oral and maxillofacial malignancies, combined and sequential therapy, multidisciplinary approach. Study selection The available related literature was read and evaluated. Studies that met the inclusion criteria were selected.
RESULTSThe results show that oral and maxillofacial malignancies diagnosed at an early stages (stages I and II) can be well treated with surgery alone and/or radiotherapy with optimal outcome, but advanced or recurrent diseases should be treated with rational combined and sequential treatment modalities. The use of concomitant chemoradiotherapy, taxane-containing, three-drug induction regimens and Cetuximab in combination with chemotherapy or radiotherapy demonstrated favorable results in previously untreated patients with head and neck squamous cell carcinoma.
CONCLUSIONSThe concept of combined and sequential treatment of advanced oral and maxillofacial malignancies should be widely accepted, and the rational regimen for individual and each type of entity should be determined based on the anatomical site and the patient's performance status.
Carcinoma, Squamous Cell ; therapy ; Combined Modality Therapy ; Facial Neoplasms ; therapy ; Humans ; Lymphoma ; therapy ; Maxillary Neoplasms ; therapy ; Melanoma ; therapy ; Mouth Neoplasms ; therapy ; Salivary Gland Neoplasms ; therapy ; Sarcoma ; therapy
10.Management of head and neck hemangiomas in China.
Jia-wei ZHENG ; Guo-yu ZHOU ; Yan-an WANG ; Zhi-yuan ZHANG
Chinese Medical Journal 2008;121(11):1037-1042