1.Stability-related factors and individualized weight-bearing scheme for Bego implants
Hui CHEN ; Fengmei ZHOU ; Xiaoxia GU ; Pingqun WU
Chinese Journal of Tissue Engineering Research 2014;(8):1237-1243
BACKGROUND:There are some controversies on the choice of immediate or delayed weight-bearing schemes of implants.
OBJECTIVE: To explore the weight bearing scheme for Bego implants based on implant stability quotient (ISQ) measured by Osstel, and to analyze the factors which influence implants’ stability.
METHODS:Seventy-four single Bego implants with ISQ≥ 50 in 62 patients were selected and randomly
divided into test group (36 single Bego implants in 31 patients) and control group (38 single Bego implants in 31 patients). Patients in the test group were given immediate loading, and patients in control group were given
delayed loading. Two groups’ ISQ of Bego implants after loading (1, 2, 3, 4, 6, 8 and 12 weeks) were compared, and factors which influence implants’ stability were analyzed.
RESULTS AND CONCLUSION:The lowest ISQ for immediate loading of the test group appeared in 2-3 weeks after loading, and that of the control group appeared in 3-4 weeks. There was no statistical difference between two groups on ISQ of Bego implants after bearing (1, 2, 3, 4, 6, 8 and 12 weeks) (P > 0.05). Multiple regression analysis showed that the factors including age, types of osseous substance and implant length were positively related with stability of Bego implants, yet oral hygiene was negatively related with stability of Bego implants. Immediate loading and delayed loading have similar stability to single Bego implants with ISQ≥ 50 measured by Osstel, so individualized weight bearing scheme may be selected according to patient’s own condition under the guidance of Osstel, further to improve implants’ success rate after loading.
2.Protective role of benazepril in renal tubulo-inter stitial injury in diabetic rat
Yonggui WU ; Shanyan LIN ; Jianghua ZHOU ; Yong GU
Chinese Journal of Endocrinology and Metabolism 2001;0(05):-
Uninephrectomy was performed in a ll rats of this study, and diabetic model was induced in partial rats by streptozo tocin. Then these rats were divided into uninephrectomy group, diabetes group an d benazepril-treated diabetes group. After 4 weeks, renal tubulo-interstitial morphological change was observed and type Ⅳ collagen, fibronectin and transfor ming growth factor ? 1 (TGF-? 1) proteins as well as TGF-? 1 mRNA were d etermined. The results suggested that benazepril played a protective role in ren al tubulo-interstitial injury, which was associated partially with down-regula ted overexpression of TGF-? 1.
3.Rapid identification of gram-negative bacteria and corresponding resistance determinants from blood cultures by BC-GN assay
Huifen WU ; Danxia GU ; Hongwei ZHOU ; Rong ZHANG
Chinese Journal of Microbiology and Immunology 2015;35(10):783-788
Objective To evaluate the performance and clinical utility of Verigene gram-negative blood culture ( BC-GN ) assay for a rapid identification of gram-negative bacteria and resistance genes . Methods Non-repetitive blood culture samples containing gram-negative bacteria were collected from inpa-tients in the Second Affiliated Hospital of Zhejiang University School of Medicine from June to October , 2013 .BC-GN assay was performed to identify the species and genetic resistance determinants of gram -nega-tive bacteria directly from the positive blood culture bottles .VITEK MS and the VITEK 2 Compact were used for species identification and antimicrobial susceptibility test , the results of which were considered as gold standards.The resistance genes were further validated by PCR amplification and sequencing analysis .A comparison of the results and time between the BC-GN assay and routine methods was conducted . Results The detection range of BC-GN assay almost covered all of the common gram-negative bacteria .BC-GN assay showed an advantage of high accuracy in the identification of Escherichia coli (13/13), Klebsiella pneumoniae (19/24), Klebsiella oxytoca (9/9), Pseudomonas aeruginosa (39/39), Serratia marcescens (4/5), Enterobacter spp.(6/8), Citrobacter spp.(11/11), Proteus spp.(6/6) and Acinetobacter spp. (24/24) with an overall accuracy of 94.24%for the identification of mono-microbial blood culture samples . Moreover , BC-GN assay accurately identified all of the bacteria and resistance genes from the two multi -mi-crobial samples .Species identification and resistance profiles could be 42 hours earlier available by using BC-GN assay than those by using routine methods .Conclusion BC-GN assay could simultaneously and ac-curately identify bacteria and resistance determinants from blood cultures within 2 hours.More time for clini-cally effective therapy could be achieved by using BC-GN assay for the reduction of mortality associated with bloodstream infection .
4.construction of the index about the training effect of oncology specialist nurse and test of reliability and validity
Fengqin XU ; Hailin ZHANG ; Jiyun WU ; Zejuan GU ; Guohui ZHOU
Chinese Journal of Practical Nursing 2016;32(3):221-225
Objective To build the index about the training effect of oncology specialist nurse and test the reliability and validity.Methods By consulting literature and the methods of Delphi,which was consulted by the 9 experts and the two rounds of 35 experts,the original index was estabhshed.The correlation coefficient and validity of the index was evaluated.Results A total of the index was consist of 106 first-l,second-land third-llevel items.Questionnaire recovery rate was 100% (35/35).The level of authority was 0.816.Expert opinion concentration in various purposes mean variation coefficient was less than 0.244 2.The coordination level of expertise was 0.302.The overall reliability Cronbach α was 0.963.Adopting the method of double variable Spearman calculated the correlation coefficient was above 0.428.Cronbach a of second-and third-level indexes were 0.512-0.895.The second-land third-level indexes correlation coefficient were 0.428-0.931.Conclusions The index about the training effect of oncology specialist nurse has the high authority and representative.The reliability and validity of the index are better,which can be used to evaluate the efficacy of the evaluation about the training of oncology specialist nurse.
5.Effects of dialyzed membrane on TGF-?1 and MCP-1 plasma levels in hemodialysis patients
Yong GU ; Yonggui WU ; Jianghua ZHOU ; Al ET ;
Chinese Journal of Nephrology 1997;0(03):-
Objective To investigate effects of different dialyzed membrane on transforming growth factor(TGF-?1 ) and monocyte chemoattractant protein(MCP-1 ) plasma levels in maintenance hemodialysis (MHD) patients. Methods The plasma concentrations of TGF-?1 and MCP-1 were measured by ELISA assay in well-matched uremic patients undergoing maintenance hemodialysis with either cuprophane (CU, n = 27 ) or polysulfone (PSU, n = 25 ). Results Compared with controls (50. 2 ? 5. 7 ng/ml), the patients on CU(82. 9 ? 9. 8 ng/ml) and PSU (65. 5 ? 6. 5 ng/ml)membranes dialysis had significantly higher mean TGF-?1 concentration (P
6.Echocardiographic Evaluation of Cardiac Geometric Morphology and Hemodynamics in Premature Infants
Hong LIU ; Jie ZHOU ; Haitao GU ; Ye ZHANG ; Yuli ZHOU ; Hao WU ; Qunfang ZHOU ; Jiawei TANG ; Wei ZHOU
Chinese Circulation Journal 2015;(11):1081-1085
Objective: To explore the echocardiographic cardiac geometric morphology and hemodynamics in premature infants at different gestational age with the inlfuencing factors.
Methods: A total of 150 premature infants and 150 full-term control infants were enrolled in this study. Based on gestational age, premature infants were divided into 3 groups:①(28-32+6 ) weeks,②(33-34+6 ) weeks,③(35-36+6) weeks; and full term control infants were divided into 2 groups:①’(37-38+6) weeks and②’ (39-41+6) weeks respectively. An iE33 Philips ultrasound examination was conducted to measure left ventricular end-diastolic diameter (LVEDD), LVESD, interventricular septum thickness, posterior wall thickness, left ventricular end-diastolic volume (LVEDV), LVESV, stroke volume, LVEF, left ventricular fractional shortening (LVFS), cardiac output, stroke index, cardiac index, left ventricular mass, left ventricular mass index (LVMI), left ventricular relative wall thickness, left ventricular remodeling index (LVRI) and LVEDVI.
Results: With adjusted body surface area, all parameters for cardiac geometric morphology and hemodynamics were similar among different groups,P>0.05. The day-old age (P=0.001), height (P=0.001) and body weight for low weight born infant (P=0.012), for normal weight born infant (P=0.003), for giant infant (P=0.016) were the independent inlfuencing factors for LVMI. The impact of anthropometry and the basic life indexes were similar on LVRI among groups (χ2=42.88,P=0.076), while the covariates were different on LVMI among groups (χ2=123.6,P<0.001).
Conclusion: Cardiac morphology and hemodynamics measured by echocardiography has important clinical meaning for assessing the development and maturity of neonatal hearts in premature infants.
7.Clinical presentations and imaging features of a novel avian-origin influenza H7N9
Yang WANG ; Zhuping ZHOU ; Yingwei ZHANG ; Zhengyang ZHOU ; Chao WU ; Qin GU ; Bin ZHU
Chinese Journal of Radiology 2013;47(9):780-782
Objective To discuss the clinical presentations and imaging features of a novel avianorigin influenza (H7N9).Methods Anteroposterior chest radiographs and serial thin-section CT images in 5 patients with H7N9 were reviewed retrospectively by two radiologists,the predominant inaging patterns of lung abnormalities and clinical data were recorded and analyzed.Results The large consolidation of the right lung with air bronchograms was the most common radiographic appearance in all patients with H7N9 at admission,and the abnormalities were more severe in the bilateral lower lobes.Both lungs developed large,scattered consolidations and ground-glass opacities with the progression of disease.The lesions in the left lung were more rapidly absorbed than those in the right lung.Conclusion Influenza H7N9 has certain chest imaging characteristics in the onset,progression and recovery of disease.
8.Quick cognitive screening scale for the elder:development, reliability and validity
Yue WU ; Wenwei XU ; Zaohuo CHENG ; Bin WU ; Jun GU ; Xiaoqin ZHOU
Chinese Journal of Behavioral Medicine and Brain Science 2013;22(12):1129-1132
Objective To develop a Quick Cognitive Screening Scale for Elder(QCSS-E) and examine its reliability and validity.Methods In the light of rating model of MMSE and MoCA,a screening scale was developed to assess cognitive function,which contained 47 items across twelve domains.Five hundred community subjects were interviewed with the QCSS-E,then 150 subjects were retested after two weeks,and 75 subjects were assessed with MMSE and CCAS.The test-retest reliability,internal consistency reliability,empirical validity and constmct validity of QCSS-E were calculated.Results The test-retest reliability and Cronbach's α coefficient were 0.972 and 0.814 for QCSS-E total score,0.656-0.911 and 0.679-0.746 for domain scores.There were low to moderate correlation of 0.133-0.612 among domain scores,correlation domain scores with total score ranged from 0.303-0.664.QCSS-E scores decreased with increasing agc,increased with the level of education increasing,and decreased with the aggravation of brain damage.The QCSS-E was significantly correlated with MMSE(r=0.886) and CCAS (r=0.899).Factor analysis got two factors accounting for 49.4% of variance,which were named vulnerability factor and resistance to damage factor.Conclusion The stability,internal consistency,and validity of the QCSS-E are good and meet with psychometric standard.
9.Determination of osimertinib mesylate by HPLC
Ping ZHOU ; Li LI ; Lulu WU ; Chenhao GU ; Huimin TIAN ; Xiaoming REN ; Haijun ZHANG ; Jiaquan WU
Journal of China Pharmaceutical University 2017;48(3):322-327
To establish an HPLC method to determine osimertinib mesylate,Agilent ZORBAX Eclipse Plus C18 column (4.6 mm × 250 mm,5 μm) was used with a mobile phase consisting of methanol-buffer solution (20 mmoL/L NaH2PO4,pH 3.0 adjusted with 85% H3PO4) (50 ∶ 50) at the flow rate of 1.0 mL/min.The detection wavelength was 210 nm,and the column temperature was kept at 35 ℃.The calibration curve was liner over the range from 50% to 150% of determination concentration (0.201 1-0.603 2 mg/mL,r =0.999 9).The limit of quantitation (LOQ) and limit of detection (LOD) were 0.32 μg/mL and 0.08 μg/mL,respectively.The contents of osimertinib mesylate in samples were 100.1%,99.5% and 99.7%.Good chromatographic separation of osimertinib mesylate and its related substances,including synthetic impurities and degradation products,were obtained.The established HPLC method is specific,accurate,simple and durable,and could be used for the determination of osimertinib mesylate.
10.Effect of preeclampsia and varying degrees proteinuria on perinatal outcome
Lihong ZHANG ; Yunjiao ZHOU ; Jun YE ; Yaping CHEN ; Yun WU ; Jianying NIU ; Yong GU
Chinese Journal of Nephrology 2014;30(3):177-181
Objective To explore the impacts of preeclampsia and the different extent of proteinuria on maternal and perinatal outcomes.Methods The retrospective analysis was conducted according to the perinatal clinical data of preelacmpsia,pregnancy-induced hypertension in pregnant women and normal pregnant women from the Fifth People's Hospital of Shanghai,excluding twins,diabetic mellitus and patients with chronic kidney disease previously.Patients were divided into three groups on the basis of their conditions:① preeclampsia patients (A group,220 cases); ② patients with gestational hypertension (B group,189 cases); ③ normal pregnant (C group,220 cases).Patients with pre-eclampsia according to the degree of proteinuria were further divided into three subgroups:A1:patients with mild proteinuria (n =109); A2:patients with moderate proteinuria (n =72); A3:patients with severe proteinuria (n =39).Results Compared with the other two groups,the patients in A group had higher blood pressure,serum creatinine,uric acid,cesarean section rate,perinatal prematurity,stillbirth,fetal distress and neonatal asphyxia in preeclampsia group.However,the serum albumin level,eGFR,neonatal birth weight,length and Apgar scores were lower in A group compared with B and C group (P < 0.05).In three subgroups,serum creatinine level,uric acid level,cesarean section rate,perinatal prematurity and fetal distress were significantly increased in A3 group compared with A1 group,while the serum albumin level,eGFR,gestational age and neonatal birth weight were obviously lower in A3 group than in A1 group (P < 0.05).In patients with preeclampsia,24 h urinary protein was negatively related with the levels of serum albumin and eGFR (P < 0.05),and positivly related with the blood pressure,serum creatinine and caesarean production rate (P < 0.05).Large amounts of proteinuria was a risk factor of adverse outcome for pregnant patients with preeclampsia (OR =2.899,P < 0.05).Conclusions Preeclampsia patients with large amount of proteinuria have poor maternal and perinatal outcomes.Massive proteinuria is a risk factor of adverse outcome for patients with pre-eclampsia.