1.The effect of low glycemic index diet and exercise on plasma glucose and lipid metabolism in patients with newly diagnosed type 2 diabetes
Wenfei ZHONG ; Kaining CHEN ; Yi LI ; Tuanyu FANG ; Huachuan ZHANG
Chinese Journal of Primary Medicine and Pharmacy 2011;18(4):445-447
ObjectiveTo evaluate the effect of low glycemic index(LGI)diet and exercise on plasma glucose and lipid profiles in newly diagnosed type 2 diabetic patients. MethodsSeventeen newly diagnosed type 2 diabetic patients with FPG ≤ 10mml/L treated by LGI diet and exercise only for two months.Fasting plasma glucose (FPG),2 hours postprandial glucose(2hPG),glycosylated hemoglobin A1 C(GHbA1C),and lipid profiles were measured.The results of FPG,2hPG,GHbA1C,and lipid profiles were compared. ResultsTwo months after treatment,the level of fasting glucose(6.19 ± 0.60)mmol/L,postprandial 2h plasma glucose(8.59 ± 0.90)mmol/L,TG(1.15 ± 0.45)mmol/L,TC(4.98 ± 0.77)mmol/L,LDL(3.20 ± 0.71)mmol/L were significantly lower than (7.84 ± 1.19)mmol/L,(13.97 ± 3.35)mmol/L,TG(1.79 ± 0.75)mmol/L,TC(5.46 ± 0.27)mmol/L,LDL (3.57 ± 0.28)mmol/L,HDL(1.59 ± 0.30)mmol/L was significantly higher than(1.42 ± 0.26)mmol/L,the differences were statistically significant(all P<0.05);HbA1c(6.49 ± 0.57)% was slightly lower than(7.29 ±0.77)%,but the difference was not significant(P>0.05);No hypoglycemia was observed during the treatment. ConclusionThe exellent glycemic control and improvement of lipid profile could be achieved by low glycemic index diet and exercise only.Furthermore,no hypoglycemia occurred during the treatment.
2.Segmentation Method for Liver Organ Based on Image Sequence Context.
Meiyun ZHANG ; Bin FANG ; Yi WANG ; Nanchang ZHONG
Journal of Biomedical Engineering 2015;32(5):1125-1130
In view of the problems of more artificial interventions and segmentation defects in existing two-dimensional segmentation methods and abnormal liver segmentation errors in three-dimensional segmentation methods, this paper presents a semi-automatic liver organ segmentation method based on the image sequence context. The method takes advantage of the existing similarity between the image sequence contexts of the prior knowledge of liver organs, and combines region growing and level set method to carry out semi-automatic segmentation of livers, along with the aid of a small amount of manual intervention to deal with liver mutation situations. The experiment results showed that the liver segmentation algorithm presented in this paper had a high precision, and a good segmentation effect on livers which have greater variability, and can meet clinical application demands quite well.
Algorithms
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Humans
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Image Interpretation, Computer-Assisted
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Imaging, Three-Dimensional
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Liver
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anatomy & histology
3.Imaging Observation of Scalp Acupuncture on Brain Gray Matter Injury in Stroke Patients with Cerebral Infarction.
Yi LANG ; Fang-yuan CUI ; Kuang-shi LI ; Zhong-jian TAN ; Yi-huai ZOU
Chinese Journal of Integrated Traditional and Western Medicine 2016;36(3):294-299
OBJECTIVETo study features of brain gray matter injury in cerebral infarction patients and intervention of scalp acupuncture by using voxel-based morphology.
METHODSA total of 16 cerebral infarction patients were recruited in this study, and assigned to the scalp acupuncture group and the control group, 8 in each group. Another 16 healthy volunteers were recruited as a normal group. All patients received scanning of T1 structure. Images were managed using VBM8 Software package. Difference of the gray matter structure was compared among the scalp acupuncture group, the control group, and the healthy volunteers.
RESULTSCompared with healthy volunteers, gray matter injury of cerebral infarction patients mainly occurred in 14 brain regions such as cingulate gyrus, precuneus, cuneus, anterior central gyrus, insular lobe, and so on. They were mainly distributed in affected side. Two weeks after treatment when compared with healthy volunteers, gray matter injury of cerebral infarction patients in the scalp acupuncture group still existed in 8 brain regions such as bilateral lingual gyrus, posterior cingulate gyrus, left cuneus, right precuneus, and so on. New gray matter injury occurred in lingual gyrus and posterior cingulate gyrus. Two weeks after treatment when compared with healthy volunteers, gray matter injury of cerebral infarction patients in the control group existed in 23 brain regions: bilateral anterior cingulum, caudate nucleus, cuneate lobe, insular lobe, inferior frontal gyrus, medial frontal gyrus, precuneus, paracentral lobule, superior temporal gyrus, middle temporal gyrus, lingual gyrus, right postcentral gyrus, posterior cingulate gyrus, precentral gyrus, middle frontal gyrus, and so on. New gray matter injury still existed in 9 cerebral regions such as lingual gyrus, posterior cingulate gyrus, postcentral gyrus, and so on.
CONCLUSIONSBrain gray matter structure is widely injured after cerebral infarction. Brain gray matter volume gradually decreased as time went by. Combined use of scalp acupuncture might inhibit the progression of gray matter injury more effectively.
Acupuncture Therapy ; Brain ; physiopathology ; Brain Injuries ; therapy ; Cerebral Infarction ; therapy ; Gray Matter ; pathology ; Humans ; Magnetic Resonance Imaging ; Scalp ; Stroke ; therapy
5.Expression of alternatively spliced human tissue factor in acute leukemia cells.
Yi FANG ; Jia-Yi CAI ; Ji-Hua ZHONG ; Hua ZHONG ; Hai-Rong WANG ; Fang-Yuan CHEN
Journal of Experimental Hematology 2011;19(2):288-292
The high expression of tissue factor (TF) is related to the coagulation disorder in acute leukemia. TF in blood circulation is mainly expressed in cells, microparticles (MP) and alternatively spliced human tissue factor (asHTF). To elucidate the role of TF in the coagulation disorder of acute myeloid leukemia (AML), RT-PCR was performed on 6 common AML cell lines NB4, HL-60, Kasumi-1, U937, K562 and THP-1. The results showed that only NB4 and U937 cells expressed baseline full-length TF and asHTF which were proved by sequencing. The flow cytometric detection, TF activity and TF antigen tests in NB4 and U937 cells revealed that the asHTF was expressed in trace amount and almost had no activity, while the TF antigen and activity in microparticles were significantly higher than that in asHTF. It is concluded that asHTF may play an unimportant role in the coagulation disorder of AML. Microparticle associated tissue factor (MP-TF) is the predominant source of TF activity released from AML cells.
Alternative Splicing
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HL-60 Cells
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Humans
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Leukemia, Promyelocytic, Acute
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genetics
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metabolism
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Thromboplastin
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genetics
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metabolism
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Tumor Cells, Cultured
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U937 Cells
6.Troubleshooting of bioinequivalence of compound valsartan tablets.
Da SHAO ; Yi-Fan ZHANG ; Yan ZHAN ; Xiao-Yan CHEN ; Da-Fang ZHONG
Acta Pharmaceutica Sinica 2014;49(4):524-529
The study aims to evaluate the bioequivalence of valsartan hydrochlorothiazide tablets, and to investigate the potential cause of bioinequivalence. This was a single-center study with an open, randomized double-way crossover design. Test and reference preparations containing 160 mg of valsartan and 25 mg of hydrochlorothiazide were given to 36 healthy male volunteers. Plasma concentrations of valsartan and hydrochlorothiazide were determined simultaneously by LC-MS/MS. The pharmacokinetic parameters and relative bioavailability were calculated, while the bioequivalence between test and reference preparations were evaluated. The dissolution profiles of test and reference preparations in four different mediums were determined via dissolution test and HPLC. The similarity was investigated according to the similarity factors (f2). The F(o-t) and F(0-infinity) were (139.4 +/- 65.2)% and (137.5 +/- 61.2)% for valsartan of test preparations. It led to get the conclusion that test and reference preparations were not bioequivalent for valsartan. A significant difference was observed between test and reference tablets in the valsartan dissolution test of pH 1.2 hydrochloric acid solution. The key factor of the bioinequivalence might be that dissolution of valsartan in acid medium has marked difference between two preparations.
Administration, Oral
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Adolescent
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Adult
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Angiotensin II Type 1 Receptor Blockers
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administration & dosage
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adverse effects
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blood
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pharmacokinetics
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Antihypertensive Agents
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administration & dosage
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adverse effects
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blood
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pharmacokinetics
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Area Under Curve
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Chromatography, Liquid
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Cross-Over Studies
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Drug Liberation
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Humans
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Hydrochlorothiazide
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administration & dosage
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adverse effects
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blood
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pharmacokinetics
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Male
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Tablets
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Tandem Mass Spectrometry
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Therapeutic Equivalency
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Valsartan
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administration & dosage
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adverse effects
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blood
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pharmacokinetics
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Young Adult
7.SOX9 expression correlates with microvascular density, progress and prognosis in gastric cancer patients.
Qian WANG ; Jin ZHANG ; Yi-fang ZHONG ; Ying CONG ; De LIN
Chinese Journal of Pathology 2012;41(12):848-849
Adenocarcinoma
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metabolism
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pathology
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surgery
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Adenocarcinoma, Papillary
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metabolism
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pathology
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surgery
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Antigens, CD
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metabolism
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Carcinoma, Signet Ring Cell
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metabolism
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pathology
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surgery
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Endoglin
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Female
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Humans
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Male
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Microvessels
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pathology
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Middle Aged
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Neoplasm Staging
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Neovascularization, Pathologic
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Receptors, Cell Surface
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metabolism
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SOX9 Transcription Factor
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metabolism
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Stomach Neoplasms
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metabolism
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pathology
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surgery
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Survival Rate
8.The enantioselective pharmacokinetic study of desvenlafaxine sustained release tablet in Chinese healthy male volunteers after oral administration.
Yin-xia CHEN ; Jiang-bo DU ; Yi-fan ZHANG ; Xiao-yan CHEN ; Da-fang ZHONG
Acta Pharmaceutica Sinica 2015;50(4):486-491
A chiral LC-MS/MS method for the simultaneous analysis of desvenlafaxine (DVS) enantiomers in human plasma was developed and applied to a pharmacokinetic study on 12 Chinese healthy volunteers. d6-Desvenlafaxine was used as internal standard (IS). Chromatographic separation was performed on the Astec Chirobiotic V chiral column (150 mm x 4.6 mm, 5 μm). The assay was linear over the concentration range of 0.500-150 ng x mL(-1) for both enantiomers (r2 > 0.99). The method was successfully applied to a stereoselective pharmacokinetic study of 100 mg desvenlafaxine sustained release tablets on 12 Chinese healthy volunteers under fasting conditions. The results showed that the pharmacokinetic parameters were similar to both enantiomers in Chinese healthy volunteers. The AUC(0-t), and C(max) of the two enantiomers were about 1.5 times higher than those of blacks and whites reported in the literature.
Administration, Oral
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Area Under Curve
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Asian Continental Ancestry Group
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Chromatography, Liquid
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Cyclohexanols
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blood
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pharmacokinetics
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Delayed-Action Preparations
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Desvenlafaxine Succinate
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Dose-Response Relationship, Drug
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Healthy Volunteers
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Humans
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Male
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Plasma
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chemistry
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Stereoisomerism
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Tablets
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Tandem Mass Spectrometry
9.A study of therapeutic strategies for idiopathic membranous nephropathy
Yue CHEN ; Xiaoqiang DING ; Yihong ZHONG ; Yi FANG ; Chunfeng LIU ; Suhua JIANG
Fudan University Journal of Medical Sciences 2009;36(6):741-745
Objective To compare the efficacy of different therapies for idiopathic membranous nephropathy (IMN) patients, and to discuss their rationality. Methods The clinicopathological data and therapies of 76 patients with IMN in our hospital was retrospectively analyzed and reviewed, and the efficacy was followed up.According to the different therapies, 76 patients were divided into 4 groups, including symptomatic treatment group, glucocorticoid-alone group, immunosuppressant-alone group, and glucocorticoid in combination with immunosuppressant group (combination group). Comparison and analysis of the efficacy of the different therapies were made. Results (1) The incidence of nephrotic syndrome and 24-hour proteinuria of patients in symptomatic treatment group were significantly lower than those in glucocorticoid-alone group and combination group. (2) The remission rates of 4 groups were 56.3%,73.7%,66.7% and 78.9%, respectively. In general, no statistical differences were observed in the remission rates of patients among the symptomatic treatment group, glucocorticoid-alone group and combination group. The 2-year and 5-year renal survival rates were 89.2% and 79.3%, respectively. (3) Patients in glucocorticoid-alone group and combination group were divided into low-risk, moderate-risk and high-risk patients. No difference in remission rate was observed between the two therapies for low-risk and moderate-risk patients.But for high-risk patients,the remission rate in combination group was significantly higher than that in glucocorticoid-alone group.(4) Patients in glucocorticoid-alone group and combination group were divided into remission subgroup and non-remission subgroup. It showed that only estimated glomerular filtration rate (eGFR) between these two subgroups had statistical difference, and eGFR in non-remission subgroup was lower than that in the remission subgroup. Conclusions For high-risk patients,treatment with glucocorticoid combined with immunosuppressant may improve the remission rate of proteinuria significantly.Glomerular filtration rate before treatments is an important prognostic factor.
10.Comparison of two antibiotic prophylaxis schemes for the prevention of recurrent urinary tract infection in postmenopausal women
Yihong ZHONG ; Yi FANG ; Chensheng FU ; Min YUAN ; Jun JI ; Jie TENG ; Jianzhou ZOU ; Xiaoqiang DING
Chinese Journal of Nephrology 2008;24(12):865-867
ObjectiveTo compare the efficacy and safety of intermittent patient-initiated single-dose antibiotic prophylaxis and continuous antibiotic prophylaxis for the prevention of recurrent urinary tract infection (UTI) in postmenopausal women. MethodsA randomized controlled clinical trial was conducted for the prevention of recurrent urinary tract infection. Single dose of antibiotic was given every night in continuous antibiotic prophylaxis group and every time after exposure to conditions predisposed to UTI in intermittent antibiotic prophylaxis group. The duration of prevention was 12 months in both groups. ResultsThe effective rates of intermittent antibiotic prophylaxis and continuous antibiotic prophylaxis were 71.0% and 81.8% respectively (P>0.05). The incidence of gastrointestinal adverse reaction in intermittent antibiotic prophylaxis group was significantly lower than that in continuous antibiotic prophylaxis group (7.7% vs 28.6%,P<0.05). ConclusionsCompared with continuous antibiotic prophylaxis, intermittent patient-initiated single-dose antibiotic prophylaxis is a better prophylaxis with less gastrointestinal adverse reactions for the prevention of recurrent urinary tract infection in postmenopausal women.