1.Analysis of Urine Arsenic Metabolites of People with Skin Lesion Caused by High Arsenide Exposure
Qiang ZHANG ; Quanmei ZHENG ; Shuhua XI
Journal of Environment and Health 2007;0(12):-
0.05), iAs% was much higher and the levels of FMR, SMR and DMA% were significantly lower in skin lesion group compared with the control (P
2.Risk factor analysis for postoperative brain metastasis in patients with non-small-cell lung cancer
Yuzhu ZHENG ; Xi ZHANG ; Hao LI
Journal of Medical Postgraduates 2015;(9):953-956
Objective The patients with non-small cell lung cancer ( NSCLC) are still at risk of brain metastasis after surgi-cal treatment.The study was to investigate the clinical characteristics and the risk factors for postoperative brain metastasis in patients with NSCLC in order to provide references for prophylactic cranial irradiation ( PCI) . Methods The clinical and prognostic data of 213 patients with NSCLC in our department of oncology from February 2008 to February 2012 were retrospectively analyzed.The occur-rences of postoperative brain metastasis in NSCLC patients with different characteristics were observed.Cox model was used to investi-gate the risk factors for postoperative brain metastasis in patients with NSCLC. Results The overall cumulative rate of brain metasta-sis was 23.9%(51/213) and the rates of brain metastasis at 1-year, 2-year, 3-year after surgery were 6.1%, 14.1%, 22.5% re-spectively.Univariate analysis showed that the rates of postoperative brain metastasis in NSCLC patients with different ages, histological types, tumor stages and CEA levels were statistically significant (P<0.05).Cox regression showed that adenocarcinoma (HR=2.00, 95%CI:1.11~3.64), lung cancer stageⅢ(HR=3.70, 95%CI:1.67~8.25) and high CEA (≥5.0μg/L)(HR=3.16, 95%CI:1.60~6.25) were risk factors for postoperative brain metastasis in patients with NSCLC.The survival time in NSCLC patients with brain metastasis was remarkably lower than that in patients without brain metastasis (P<0.05). Conclusion The NSCLC pa-tients with adenocarcinoma, III stage disease, or high CEA are more likely to develop brain metastasis after surgery, which should be the focus of PCI.
3.Preliminary experiences of nucleic acid testing in blood screening in Shanghai
Xun WANG ; Lan ZHENG ; Xi ZHANG
Chinese Journal of Blood Transfusion 1988;0(03):-
Objective To assess the blood safety under the current sero-screening program and gain experience on how to implement NAT as a routine assay for blood screening in China. Methods Sera from 103,539 non-remunerated donors of Shanghai blood center were tested by Chiron's Procleix(TMA HIV-1/HCV Assay in 2 study stages with 8 and 24 sample-pool respectively. Results 5 NAT positive samples were found to be Anti-HCV EIA-2 test positive at the same time. No window period cases of HIV-1/HCV were found in this donor group. But 275 (0.27% ) anti-HCV and 107 (0. 10%) anti-HIV false positive samples were identified by the second sero-screening. Conclusion The blood quality of Shanghai city was high to be close to the level of developed countries and the window period risk of HIV-1 and HCV was less than 1:100,000. With its high sensitivity and specificity,Procleix( TMA HIV-1/HCV Assay can be used in routine blood screening in China.
4.Investigation on the Influence of Medical Postgraduates' Awareness of Mental Health Knowledge on Discrimination against Patients with Mental Disorders
Yanan ZHENG ; Zhihua ZHANG ; Xi GONG
Chinese Medical Ethics 2017;30(8):1002-1005,1029
Objective:To explore the discrimination against the patients with mental disorders and current situation of awareness of mental health knowledge of medical postgraduates and their relationship.Methods:A questionnaire survey was conducted among 132 medical postgraduates in October 2016 using the assessment scale of discrimination against patients with mental disorders and mental health knowledge awareness questionnaire,which derived from mental health work indicators survey and evaluation program issued by the General Office of the Ministry of Health in 2010.Results:There was significant gender difference (P <0.01)in the overall score and the score of each dimension of assessment scale of discrimination against patients with mental disorders,and the score of mental health knowledge was (13.93-± 3.13).There was significant negative correlation between scores of assessment scale of discrimination against patients with mental disorders and mental health knowledge.Multiple linear regression analysis showed that awareness of mental health knowledge could predict the discrimination against the patients with mental disorders and all its factors.Conclusion:Awareness of mental health knowledge in medical post graduates can predict the discrimination against the patients with mental disorders.Medical universities should carry out corresponding education and publicity work with pertinence.
5.Clinical analysis of elderly patients with osteoporotic hip fractures
Chinese Journal of General Practitioners 2017;16(8):618-620
Clinical data of 448 patients aged ≥60 years with osteoporotic hip fractures admitted in Shanghai Huashan Hospital between January 2010 and December 2014 were retrospectively analyzed.Among 448 cases,there were 143 males and 305 females;196 cases aged 80-89 years (43.8%) and 137 cases aged 70-79 years (30.6%);304 cases of femoral neck fracture (67.9%) and 144 cases of intertrochanteric femoral fracture (32.1%);the fractures caused by fall in 328 cases (73.2%) and comorbidity with hypertension and diabetes mellitus in 415 cases (92.6%).Two hundred and sixty eight patients were followed up for 2 years,among whom re-fractures occurred in 17 cases.The study indicates that health education is important for prevention of osteoporotic fractures in elderly people.
6.A STUDY ON BIOTECHNOLOGY OF GLYCOLIPID PRODUCED BY A BACILLUS COAGULANS
Xi-Qun ZHENG ; Xiao-Lan LIU ; Lu ZHANG ; Wei MA ;
Microbiology 1992;0(04):-
The biotechnology of glycolipid fermented b y a bacillus coagulans was studied and the fermentation pro cess in 10L bioreactor was conducted.Suitable medium contained 6% bean oil as ca rbon source,3 5g/L NaNO 3 as nitrogen source,0 75g/L yeast extract and some i no rganic salts.The fermentation temperature of 30℃,initial pH of 8 5,strring rev olution of 150~240r/min and fermentation period of 96h proved to be optimal.The yield of glycolipid in 10L bioreactor was 7 073g/L.
7.Interstitial lung disease in patients with Sjgren′s syndrome
Yongfeng ZHANG ; Yuewu LU ; Xi CHEN ; Yi ZHENG
Chinese Journal of Rheumatology 2001;0(04):-
Objective To investigate the prevalence and clinical characteristics of Sj?gren′s syndrome-interstitial lung disease (SS-ILD). Methods 136 patients with SS were studied. Anti-SSA and Anti-SSB antibodies were measured by Western blot. The inpatients had chest X ray, chest HRCT and pulmonary function examined. Results ①pSS-ILD patients with postive anti-SSA antibody were proned to have interstitial lung disease and the ILD were more severe. ②HRCT showed that sSS-ILD were more severe than that of pSS-ILD. ③Lung capacity of pSS-ILD decreased more frequently than sSS-ILD. sSS-ILD mainly had venti-latory function abnormalities. The lung function impairment of both were dominated by small airways dysfunction and decrease of TLCO. Conclusion SS patients should be examined by HRCT and lung function tests should be performed in the course of the disease to find out and treat ILD.
8.Status and progress of tissue engineering research
Journal of Medical Biomechanics 2010;25(1):E001-E003
Tissue engineering is one of the most promising subjects,which has broad application prospects in the fields of regenerative medicine and human health care. According to the papers published in this current issue about scaffold material preparation and mechanical environment affection to cells during the construction process of tissue engineering, this paper describes the current status and progress of tissue engineering research at home and abroad, indicating that tissue engineering research is developing to a deeper and wider field.
9.The research on mechanobiology mechanism of bone remodeling
Journal of Medical Biomechanics 2016;31(4):E356-E361
Bone growth, development and maintenance, which become multidisciplinary with the rapid development of biomechanics, tissue engineering and cell biology, are intimately linked with bone remodeling. Mechanobiology has become an important method to study bone remodeling. This article summarizes related skeletal mechanobiology researches in recent years to provide theoretical basis for bone remodeling, bone tissue engineering and clinical treatments of related orthopedic disorders.
10.Targeting apoptosis signaling pathways in cancer therapy.
Liang CHENG ; Xi WANG ; Jie ZHANG ; Shao-bo ZHANG ; Su-qin ZHENG ; Jie ZHENG
Chinese Journal of Pathology 2009;38(9):639-642
Antineoplastic Agents
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therapeutic use
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Apoptosis
;
drug effects
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Caspases
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metabolism
;
physiology
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Enzyme Activation
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Fas Ligand Protein
;
metabolism
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Humans
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NF-kappa B
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metabolism
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Neoplasms
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metabolism
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therapy
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Neovascularization, Pathologic
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Proto-Oncogene Proteins c-bcl-2
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metabolism
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Signal Transduction