1.Malnutrition in early life and risk of type 2 diabetes
Mingling CHEN ; Hong FANG ; Wanghong XU
Chinese Journal of Endocrinology and Metabolism 2014;30(3):247-249
Factors in uterus may be important in the aetiology of type 2 diabetes.Malnutrition during early life can affect insulin secretion and result in insulin resistance,and such effects are markedly exaggerated when facing over-nutrition in later life.This paper gives a review about the population evidence and epigenetic mechanism in the generational susceptibility to type 2 diabetes.
2.Methylenetetrahydrofolate Reductase Gene Polymorphisms and Ischemic Stroke
Fang CHEN ; Hong ZHENG ; Yuming XU
International Journal of Cerebrovascular Diseases 2008;16(11):870-875
Recent studies have demonstrated that hyperhomocysteinemia is an independent risk factor for stroke,which may cause vascular endothelial injury by multiple mechanisms,destroy blood coagulation and fibrinolytic systems,and influence on lipid metabolism.Methylenetetra hydrofolate reductase(MTHFR)is a key enzyme of homocysteine metabolic pathway in the human body.If it is insufficient or its activity decreases,it will directly result in the accumula tion of homocysteine in the human body,and callse hyperhomocysteinemia.Although a number of studies have found that MTHFR gene mutation is the main cause of MTHFR insufficient and its activity decrease,the correlation between MTHFR gene mutation and ischemic cerebral vascular disease is quite controversial now.This article reviews the relationship between MTHFR gene polymorphisms and ischemic stroke.
5.Pharmacokinetics of tramadol hydrochloride in the extracellular fluid of mouse frontal cortex studied by in vivo microdialysis.
Zhangqing MA ; Fang TAO ; Hao FANG ; Tao XU ; Zongyuan HONG
Acta Pharmaceutica Sinica 2013;48(3):406-10
The paper aims to explore the studying method for the pharmacokinetics of drugs in target organs, the pharmacokinetic process of tramadol hydrochloride in the extracellular fluid of frontal cortex (FrCx) of mice was investigated. Six male mice (Kunming strain) were anaesthetized (urethane, 1.8 g x kg(-1), ip) and secured on a stereotaxic frame. A microdialysis probe was implanted into the FrCx and perfused with artificial cerebrospinal fluid at a flow rate of 2 microL x min(-1). One hour later, mice were administrated (ip) with tramadol hydrochloride (50 mg x kg(-1)) and dialysates were collected continuously at 12-min intervals (24 microL each) for 6 h. The tramadol concentration in dialysates was determined by HPLC-Ultraviolet detection method, and the concentration-time curve and pharmacokinetic parameters of tramadol were calculated with DAS software. The results showed that the pharmacokinetic process of tramadol in the FrCx extracellular fluid of mice was fitted to a two-compartment open model, and the main pharmacokinetic parameters t1/2alpha, t1/2beta, t(max), C(max) and AUC(0-infinity) were (0.27 +/- 0.05) h, (2.72 +/- 0.24) h, (0.50 +/- 0.10) h, (2 110.37 +/- 291.22) microg x L(-1) and (4 474.51 +/- 441.79) microg x L(-1) x h, respectively. In conclusion, a studying method for pharmacokinetics of drugs in the target organ is established, which is simple and feasible. Tramadol hydrochloride shows a two-compartment model in the extracellular fluid of the mouse FrCx, and the distribution- and elimination half-life are 0.5 h and 2.7 h, respectively.
6.Serum levels of prohibitin in normal children and those with nephrotic syndrome
Yu SHI ; Wenyan HUANG ; Hong XU ; Xiliang ZHA ; Zhengyu FANG
Journal of Clinical Pediatrics 2010;(3):264-268
Objective To detect the serum prohibitin protein(PHB)level in children with renal interstitial damage and analyze the correlation between PHB and renal interstitial fibrosis(RIF). Methods Serum PHB protein levels were determined by Western blot analysis in 36 children with kidney diseases,and 30 healthy children were studied as control. Levels of BUN,Scr,and urinary microprotein series(including ALBU/Cr,NAGU/Cr,IgG U/Cr,α1-MU/Cr)were studied by automatic biochemical analyzer. Renal interstitial damage was semiquantitatively graded according to Katafuchi's method. The correlation between serum levels of serum PHB protein and those of BUN,Scr as well as urine microprotein were analyzed. Results Serum PHB protein was positive in children with diverse kidney diseases however it was negative in the normal controls(P < 0.05). Serum PHB levels were significantly higher in children with proliferative glomerulonephritis than those with non-proliferative glomerulonephritis(P < 0.05). Statistical analysis indicated that serum PHB levels positively correlated with the degree of tubulointerstitial lesions(r = 0.868,P < 0.001)as well as the glomerular injuries(r = 0.753,P < 0.001). And,serum PHB levels were also positively correlated with urinary microprotein including NAG(r = 0.586,P < 0.001)and IgG(r = 0.341,P < 0.001). Conclusions Serum PHB levels were significantly increased in children with kidney diseases and were positively correlated with the degrees of renal interstitial damage,suggesting that PHB might be a potential clinical marker for detecting tubulointerstitial lesions.
7.Mini-blasting lithotrite for treating incarcerated stone in distal common bile duct under choledochoscope
Peitu REN ; Baochun LU ; Huanjian XU ; Xingliang FANG ; Hong FU
Chinese Journal of General Practitioners 2011;10(11):829-830
Twenty five patients with incarcerated stone in distal common bile duct were treated with mini-blasting lithotrite under choledochoscope from June 2008 to September 2010.The clinical data of patients were retrospectively analyzed.The successful rate of surgery was 100%.The clearance rate of first procedure was 92% (23/25),2 cases underwent second procedure and all were successful.There were no severe operative complications including bile duct injury,perforation,hemorrhage or bile leakage.Miniblasting lithotrite is a safe and effective method for treating incarcerated stone in distal common bile duct.
8.Application of ultrasonography in screening the defects of fetal brain and skull
Guangqiong JIAO ; Huiying XU ; Xiangli HONG ; Fang YIN ; Jing TAN
Chinese Journal of Ultrasonography 2010;19(6):521-523
Objective To explore the application of three-dimensional (3D) ultrasonography in screening the defects of fetal brain and skull.Methods Thirty-one cases of the fetal were detected in 3D ultrasonography.The ultrasonic data were compared with magnetic resonance imaging(MRI) and pathology.Results Among 31 cases according to 3D ultrasonography,there were 2 of anencephaly, 1 of exencephaly,2 of encephalocele,5 of holoprosencephaly,2 of arachnoidcyst, 1 of vein of Galen aneurysm,2 of agenesis of the corpus callosum, 1 of schizencephaly, 3 of Dandy-Walker syndrome, 7 of ventriculomegaly, and 5 of enlargement of cisterna magna.Compared with the results of MRI,the diagnostic accordance rate was 100% by 3D,it was 93.5% by 2D.Conclusions The structure of fetal brain and skull were viewed more clearly in 3D ultrasonography than 2D ultrasonography and the defects of fetal brain and skull can screened more exactly.
9.High-dose methotrexate plus hematopoietic stem cell transplantation supplemented by rituximab intrathecal injection for primary central nervous system lymphoma:two cases report and literature review.
Jin-hong JIANG ; Bing-mu FANG ; Ye-hui XU
Chinese Journal of Hematology 2013;34(2):162-163
Adult
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Antibodies, Monoclonal, Murine-Derived
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therapeutic use
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Central Nervous System Neoplasms
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therapy
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Female
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Hematopoietic Stem Cell Transplantation
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Humans
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Injections, Spinal
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Lymphoma, Non-Hodgkin
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therapy
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Male
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Methotrexate
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administration & dosage
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therapeutic use
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Middle Aged
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Rituximab
10.Advances in effect of mitophagy on erythropoiesis.
Ting XIA ; Lyu-hong XU ; Jian-pei FANG
Chinese Journal of Hematology 2012;33(11):972-974