1.Study on the levels of serum insulin-like growth factor 1 in patients with metabolic syndrome
Yanyan HUANG ; Xiaozhe LU ; Maohua YU
Chinese Journal of Geriatrics 2003;0(07):-
Objective To investigate the relationship between serum insulin-like growth factor 1 (IGF1) and metabolic syndrome ( MS) . Methods Four hundred and sixty-five subjects were enrolled and divided into two groups: MS group( n = 255) and non-MS group as control(n = 210). Fasting levels of blood glucose (FBG), insulin (Ins) , C peptide (Cp) , cholesterol (Cho) , triglyceride (TG), lower-density lipoprotein cholesterin ( LDL-C) , higher-density lipoprotein cholesterin ( HDL -C), lipoprotein a (Lpa), serum IGF1, postprandial 2 hours blood glucose (PBG), and BMI were measured in these persons. Results The levels of IGF1, Cp, FBG, PBG, CT, TG, LDL-C, BMI were higher, and HDL-C was lower in MS group than those in non-MS group (all P
2.Primary study of respiratory monitoring based on breath sounds.
Lu YU ; Yang LIU ; Desheng HUANG
Chinese Journal of Medical Instrumentation 2015;39(1):21-24
It is nonlinear relationship between breath sounds and respiratory flow rate, thus breath sounds might be a new solution for respiratory monitoring. The envelope of the breath sounds was created firstly. And the linear relationship between the logarithm of envelope and the respiratory flow rate was proved. Then model parameters were derived from every subject using regression analysis. Finally, using these parameters estimated respiratory flow rate was achieved by the logarithm of envelope with 14.9% error. Therefore, respiratory flow rate estimation and respiration monitoring based on breath sounds are feasible.
Humans
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Monitoring, Physiologic
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Respiratory Sounds
4.Effect of Mining Waste Water on Drinking Water Quality and Tumor Mortality of Villagers
Zhijian LU ; Xinhua YU ; Quan HUANG ;
Journal of Environment and Health 1992;0(05):-
Objective To evaluate the effect of mining waste water on drinking water quality and tumor mortality of villagers. Methods Analyse quality of drinking water sampled from well which only supply water to a family which the well belongs to and survey the death reasons of whole population in the polluted area and the control area. Results Mining waste water discharged by a mine contaminated the nearby river and impacted the drinking water quality of the nearby village also. Compared with the control, the concentration of lead, arsenic and mercury in drinking water of polluted area was much higher. The 5,year total mortality in polluted area and in the control was 3.09% and 1.55% respectively. Tumor mortality in polluted area was 50%, esophagus cancer mortality was 54.24%. Tumor mortality in the control area was 20% only and most tumors were liver cancer. Conclusion The adverse effect of mining waste water on drinking water quality and human health in polluted area has been seen.
5.Correlation of Hepatitis B Virus Basic Promoter Mutation with IL-10,IL-12,TNF-?,IFN-? as well as HBV DNA Contents in Chronic Hepatitis
Liyi HUANG ; Yanhong YU ; Weijun XUAN ; Jizhou WU ; Lu HUANG
Chinese Journal of Nosocomiology 2005;0(11):-
OBJECTIVE To study the correlation of hepatitis B virus(HBV)basic core promoter(BCP) mutation with the interleukins(IL-10,IL-12),tumor necrosis factor(TNF)-?,interferon(IFN)-?,as well as HBV DNA contents in patients with chronic hepatitis B virus infection.METHODS(1) Project subject: 176 patients(chronic hepatitis B with mild,moderate and severe degree;liver cirrhosis,chronic fulminant and hepatocellular carcinoma(HCC)) with chronic hepatitis B virus infection were studied.(2) Project methods: ① The A to T mutation at nucleotide 1762 and G to A mutation at nucleotide 1764 were determined by the method of polymerase chain reaction(PCR) microplate hybridization ELISA in these patients.② The serum cytokines(IL-10,IL-12,TNF-? and IFN-?) of these patients were measured by specific-ELISA.RESULTS The serum levels of cytokines(IL-10(80.96?30.86 vs 72.11?24.19 mg/L),IL-12(41.33?15.10 vs 35.98?14.47 mg/L),TNF-?(56.04?27.05 vs 38.01?10.49 mg/L),IFN-?(19.81?12.29 vs 16.55?8.99 mg/L))and HBV DNA contents(108.2478?0.9826 vs 105.8876?1.4822copies/ml) in BCP mutant group were significantly higher than that in non-mutant group(P
6.Relationship among Hepatitis B Virus Basic Core Promoter Mutation and Serum HBV DNA Contents and HBV Markers as well as Liver Function
Liyi HUANG ; Lisheng ZHANG ; Yanhong YU ; Jizhou WU ; Lu HUANG
Chinese Journal of Nosocomiology 2006;0(12):-
OBJECTIVE To investigate the relationship among hepatitis B virus(HBV) basic core promoter(BCP) mutation,serum HBV DNA contents and HBV markers as well as liver function of chronic hepatitis B patients.METHODS The A to T mutation at nucleotide 1762 and G to A mutation at nucleotide 1764 were determined by the method of polymerase chain reaction(PCR) microplate hybridization ELISA in 176 patients with chronic hepatitis B virus infection.RESULTS The rate of HBV BCP mutants in negative and positive groups of HBeAg was 49.4% and 33.3%,respectively(P
7.Effect of extracorporeal shock wave on proliferation, differentiation, adhesion and migration of rat osteoblasts in vitro
Zhonglian HUANG ; Jun HU ; Menglei YU ; Zhijun LU
Chinese Journal of Tissue Engineering Research 2010;14(24):4547-4552
BACKGROUND: Extracorporeal shock wave therapy is indicated as an effective method for treatment of delayed fracture healing or nonunion. Osteoblasts plays an important role in this process.OBJECTIVE: To investigate the function of osteoblasts in the process of extracorporeal shock wave promoting fractures healing, and to provide theoretical support for improving shock wave therapy on fracture healing.METHODS: Primary cultured ostsoblasts were isolated from newbon SD rat calvaria and randomly divided into two groups, shock wave and control. Treated by different energies of extracorporeal shock wave, cells were incubated onto 96-well culture plate. An optimal dose of extracorporeai shock wave was selected according to survival and proliferation of osteoblasts. The osteoblasts treated by optimal energy of extracorporeal shock wave were cultured and harvested for the analysis of alkaline phosphatase by calcium cobolt stain, cell survival by CCK-8 Kit, alkaline phosphatase expression by AKP kit, mineralized nodules by Alizarin red staining, integrin β1 and β1 mRNA expressions by flow cytometry and RT-PCR, cell migration by wound healing assay.RESULTS AND CONCLUSION: The optimal energy of extracorporeal shock wave treating primary cultured osteoblasts was 10 kV (500 impulses). Following extracorporeal shock wave therapy, the cell proliferation, alkaline phosphatase activity, cell mineralization, rates of cell adhesion, as well as β1 integrin and its mRNA expressions were increased as compared with those in control group (P < 0.01). Further distance of cell migration was found in extracorporeal shock wave group (P < 0.05). The results showed that the optimal energy of extracorporeal shock wave could promote the proliferation, differentiation, adhesion and migration of osteoblasts in vitro, and β1 integrin may play an important role in the process of cell adhesion and migration.
8.Renal insufficiency and its associated factors in type 2 diabetic patients with normoalbuminuria
Weina LU ; Hong LI ; Fenping ZHENG ; Hong HUANG ; Yu RUAN
Chinese Journal of Internal Medicine 2010;49(1):24-27
Objective To investigate the prevalence of renal insufficiency and its associated factors in type 2 diabetes mellitus with normoalbuminuria using estimated glomerular filtration rate ( eGFR) .Methods We retrospectively analyzed 10-year data of chronic complications in type 2 diabetics in-patient from the Chinese Diabetes Society.eGFR was estimated using the equation from Modification of Diet in Renal Disease(MDRD) study.The clinical characteristics as well as associated factors for low eGFR were analyzed among the normoalbuminuric type 2 diabetic patients.Results A total of 1351 type 2 diabetic patients were included, 755 patients with normoalbuminuria, 466 patients with microalbuminuria and 130 patients with macroalbuminuria respectively.Among the patients, 310 (22.9% ) had low eGFR (GFR <60 ml · min~(-1) · 1.73 m~(-2) ) , 19.7% (149/755) in the patients with normoalbuminuria, 21.9% (102/466) in microalbuminuria and 45.4% ( 59/130 ) in macroalbuminuria Patients with normoalbuminuria and low eGFR suffered more chronic complications than those with normoalbuminuria and normal eGFR, mainly retinopathy, cerebrovascular diseases and sensory neuropathy.Stepwise logistic regression analysis revealed that age ( OR = 1.042, P < 0.001), diabetic duration ( OR = 1.038, P = 0.045), systolic blood pressure (OR = 1.017, P < 0.001) were independently associated with renal impairment among the patients with normoalbuminuria.Body mass index ( OR = 0.868, P < 0.001) and HbAlc (OR =0.898, P =0.021) were also related with renal insufficiency.Conclusion A considerable proportion in type 2 diabetic patients without albuminuria may exist renal impairment, and eGFR estimation could benefit the evaluation of renal function in such patients.
9.Research situation and expectation of clinical healthcare big data
Yi LU ; Zhengxing HUANG ; Siwei YU ; Huilong DUAN
Chinese Medical Equipment Journal 2017;38(3):112-115
Objective To cxplore the research and application of big data mining technology in clinical healthcare environment.Methods The characteristics of clinical heahhcare data mining methods were expounded and the current research status of healthcare data mining technology was analyzed in clinical task according to the literature mining.Meanwhile,the application of healthcare data mining in clinical environment was introduced from the following four aspects:medicine research,personalized diagnosis,risk prediction and process mining.Results The necessity and importance of research and application of clinical healthcare data mining were illustrated.Moreover,the achicvements of healthcare data mining in clinical application,as well as existing problems and technical difficulties were summarized.Furthermore,the development tendencies of healthcare data mining were predicted.Conclusion The research and application of clinical healthcare data mining have improved the healthcare quality and promoted the medical advances,which is the developmcnt direction of clinical healthcare research.
10.Inhibition Function of Dominant-negative Mutant Gene Survivin-D53A to SPC-A1 Lung Adenocarcinoma Xenograft in Nude Mice Models.
Min YU ; Xingchen PENG ; You LU ; Meijuan HUANG
Journal of Biomedical Engineering 2015;32(3):624-628
Survivin-D53A (SVV-D53A) is a dominant-negative mutant survivin, which represents a potential promising target for cancer gene therapy. The present study was designed to determine whether SVV-D53A plasmid encapsuled by DOTAP: Chol liposome would have the anti-tumor activity against SPC-A1 lung adenocarcinoma, and to detect the possible mechanisms. In our experiment, SPC-A1 cells were transfected in vitro with SVV-D53A plasmid and examined for protein expression by Western blot, then flow cytometric analysis was used to detect apoptosis. SPC-A1 lung adenocarcinoma xenografts were established in vivo in the nude mice, which received the i. v. administrations of SVV-D53A plasmid/liposome complexes. After mice were sacrificed, the paraffin-embedded tumor tissue sections were used for proliferating cell nuclear antigen (PCNA) expression and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay. Compared with the control group, the mice treated with SVV-D53A plasmid had an obviously reduced tumor volume, with high level of apoptosis and decreased cell proliferation in tumor tissue. The research results proved that the administration of SVV-D53A plasmid resulted in significant inhibition of SPC-A1 cells both in vitro and in vivo. The functional mechanism is that the anti-tumor response causes and induces tumor cell apoptosis.
Adenocarcinoma
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pathology
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Animals
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Apoptosis
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Apoptosis Regulatory Proteins
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metabolism
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Cell Line, Tumor
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Cell Proliferation
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Heterografts
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Humans
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Inhibitor of Apoptosis Proteins
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metabolism
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Liposomes
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Lung Neoplasms
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pathology
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Mice
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Mice, Nude
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Neoplasm Proteins
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metabolism
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Neoplasm Transplantation
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Plasmids
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Transfection
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Tumor Burden