1.Detect and characterize platelet-reactive antibodies in patients who were refractory to platelet transfusions
Shuxian JIAO ; Lin ZHAO ; Hong ZHOU
Chinese Journal of Blood Transfusion 1988;0(02):-
Objective To detect and determine the specificity of platelet-reactive antibodies in patients who were refractory to platelet transfusions.Methods Serum samples from 48 patients who were refractory to platelet transfusions were screened with MACE for platelet-reactive antibodies.Specificity of platelet alloantibodies was determined with PAK12 and MAIPA.Results Platelet-reactive antibodies were detected in the serum of 50% PTR patients(24/48).The incidence of HLA antibodies was 39.6%(19/48),accounting for 79.2% of serum with platelete alloantibodies.The HPA alloantibodies were found in 29.2%(14/48)serum,of which,64.3%(9/14)occurred together with anti-HLA.The following platelet-specific antibodies were identified:anti-HPA-3a(n=2),anti-HPA-5b(n=1),anti-HPA-5a(n=1),anti-HPA-2b(n=1),anti-HPA-4b(n=1).Of the 14 serum with HPA antibodies,78.6%(11/14)contained panreactive anibodies against platelet glycoprotein(GP)Ⅱb/Ⅲa,GPⅠa/Ⅱa,and/or GPⅠb/Ⅸ.Platelet-reactive antibodies were detected more in female(16/29)than in male(8/19)with a frequency of 55.2%,42.1%,respectively,but there was no statistical significant difference.Conclusion The platelet-specific antibody in PTR patients are not as rare as previous thought although alloantibodies are predominantly anti-HLA.Antibody specificities in Chinese PTR patients are different from those observed in Caucasians,in whom anti-HPA-5b and-1b are the most prevalent specificity.The most prevalent platelet-specific antibodies are anti-HPA-3 and anti-HPA-5 while anti-HPA-4b and anti-HPA-2b are also detected.
2.Abnormity rates of blood lipids and uric acid and their relationship analysis in health examination population in Yangzhou city
Yan ZHAO ; Lin ZHOU ; Xinxin LIU
Chongqing Medicine 2014;(2):211-213
Objective To investigate the abnormity of blood lipids and uric acid ,and to analyze their relationship in health exami-nation population over 18 years in Yangzhou .Methods Totally 28 202 individuals receiving the health examination from October 2011 to August 2012 in the physical examination center of this hospital were enrolled in our study .Total cholesterol(TC) ,triglycer-ide(TG) ,low density lipoprotein cholesterol(LDL-C) ,high density lipoprotein cholesterol(HDL-C) and blood uric acid(UA) were detected ,and the relationship between age and sex with the abnormity of blood lipids and uric acid and the relationship between UA levels and blood lipids were analyzed .Results Among the detection population ,the detection rates of abnormal TG ,abnormal TC , abnormal HDL-C ,abnormal LDL-C and hyperuricemia were 31 .5% ,32 .1% ,15 .9% ,18 .4% and 17 .3% respectively .Compared with females ,males had the higher rates of abnormal blood lipids and UA (P<0 .05) .The rate of abnormal blood lipids was in-creased with age increase before 50 years old ,the > 50 -70 years old group had the highest abnormity rate of blood lipids ,then which was gradually decreased after 70 years old .The morbidity rate of hyperuricemia was increased with age .Compared with nor-mal UA group ,the hyperuricemia group had the higher rate of abnormal blood lipids (P<0 .01) .Conclusion The health examina-tion population over 18 years have the higher abnormity rate of blood lipids and uric acid ,which is significantly correlated with age and sex ;the increase of uric acid has certain correlation with abnormal blood lipids metabolism .Both blood lipids and uric acid are the risk factors of cardiocerebralvascular diseases ,rational dietary structure and periodic physical examination have the important significance to prevent the occurrence of these diseases .
3.The application and value of three-dimensional reconstruction technology in the differential diagnosis and surgical treatment of ground-glass opacity
Mingzheng PENG ; Zhao LI ; Jianhua ZHOU ; Zhifeng LIN ; Qiang LIN
Chinese Journal of Thoracic and Cardiovascular Surgery 2016;32(2):89-93
Objective To explore the application and value of three-dimensional reconstruction technology in diagnosis and surgical therapy of ground-glass opacity.Methods We analyzed 188 cases with GGO during October 2012 and October 2014 in Shanghai First People’s Hospital affiliated to Shanghai Jiao tong University School of Medicine respectively.Several relative parameters based on three-dimensional reconstruction were selected to differentiate GGO pathology .By ROC curve anal-ysis, optimal cut-off points were determined.Volume-doubling time(VDT) was calculated among 104 cases which had been following up at least for three months and compared among AAH, MIA and IAC.Results Cases’ mean age was 56.66 ± 9.673years(ranged from 27 to 82 years) with 67 males and 121 females.The diameter(P<0.001), total volume(TV)(P<0.001), the maximum CT attenuation(MAX)(P<0.001) and standard deviation of distribution of CT attenuation within the whole GGO(STD)(P=0.015) of malignant group were significant larger than those of benign ones except for average CT at-tenuation(AVG)(P=0.094).The AUC were just 0.64-0.80 when differentiated benign group from AIS, benign group from MIA and AAH from MIA in comparison to 0.70-0.95 when it comes to differentiating benign group and AAH from IAC .Ad-ditionally, the optimal cut-off points were 13.5-15.5 mm in diameter, 400-600 mm3 in TV, -110 -20 Hu in MAX and 120-160 in STD.The mean VDT was 865.00 ±111.33, 464.67 ±44.40 and 238.36 ±76.71 for AAH, MIA and IAC re-spectively(AAH/MIA P<0.001, MIA/IAC P=0.003).Conclusion The diameter, TV, MAX and STD of GGO based on three-dimensional reconstruction could discriminate GGO availably .Combined utilization of HRCT and three-dimensional re-construction has a valuable significance in diagnosis and treatment of GGO .
4.Evaluation of early alterations of common carotid artery structure and function in patients with hypertriglyceridemia using ultrasound radio-frequency analyzing technique
Jun ZHANG ; Xinmin ZHAO ; Yanhua ZHOU ; Lei ZHOU ; Lin SHI
International Journal of Biomedical Engineering 2014;37(4):227-229,250,后插4
Objective To evaluate the clinical value of early alterations of carotid arterial intima-media thickness (IMT) and elastic function in patients with hypertriglyceridemia (HTG) using ultrasound radio-frequency technique.Methods 48 patients (triglyceride value ≥ 1.8 mmol/L) were chosen as HTG group.Quantitative intimamedia thickness (QIMT) and quantitative arterial stiffness (QAS) techniques were used to observe the alterations of carotid arterial IMT and elastic index,including diameter of carotid artery (D),distensibility coefficient (DC),compliance coefficient (CC),elasticity coefficient (α),elasticity coefficient (β) and pulse wave velocity (PWV).50 healthy subjects were recruited in control group.Differences of the above-mentioned parameters were analyzed,as well as the elastic index connections between the two groups.Results IMT,α,β,and PWV index of bilateral carotid arteries in HTG group was higher than that of the control group,while the DC and CC index was lower,and the differences was statistically significant (P<0.05).Within the groups there were differences between the elastic indexes of bilateral carotid arteries.In control group and the HTG group:CCL>CCR,αL>αR,βL>βR,PWVL>PWVR.CC was negatively correlated to α,β and PWV (P<0.05).Meanwhile,there was positive correlation among α,β and PWV (P<0.05).The differences of D between two groups had no statistical significance (P>0.05).Conclusions The abnormity of arterial occurs earlier than the morphological change,while the ultrasound radio-frequency technique can provide information of earlier alteration of common carotid arteries structure and elastic function in patients with HTG,which is a significant method of testing early alteration of carotid elastic in patients with HTG.
5.Separation and Identification of Schizochytrium sp.
Mao-Hong ZHOU ; Lin ZHOU ; Xiao-Wei ZHAO ; Lin-Jing YU ; Na LIN ;
Microbiology 1992;0(04):-
A strain was separeted from the Yueqing bay using pine pollen baiting.The vegetative thallus of the separated strain is oval and unincleate.It possesses a cell wall composed of many compact layers of closely pressed scales, which can be resolved where the cell wall is disrupted.The radiating branched extensions of the thallus, the ectoplasmic net, emerges from the sagenogenetosome.Asexual reproduction is by conversion of the vegetative thallus to many biflagellate zoospores, during which tetrads of cells are formed.It was identified with Schizochytrium sp.based on the features mentioned above.
6.Development and validity of Huashan Naming Test
Chunying LIN ; Qihao GUO ; Qianhua ZHAO ; Yan ZHOU ; Zhen HONG
Chinese Journal of Behavioral Medicine and Brain Science 2011;20(2):183-185
Objective To present the development of the Naming test tool ( Huashan Naming Test, HNT)for Chinese cultural and by amnestic mild cognitive impairment ( aMCI ) and mild Alzheimer' s disease (AD) between the detection of memory decline,and to analyze the validity of its trial.Methods 100 normal elders from communities in Shanghai, 100 patients with amnestic mild cognitive impairment (aMCI), and 95 patients with mild Alzheimer's disease (AD) who received an education of junior high school or above and were evaluated by neuropsychological tests including mini mental state examination ( MMSE), auditory verbal memory test, Huashan Naming tests etc.8 cognitive tests.The groups of MCI and AD patients finished cranial MRI.100 items with HNT including 20 animals,10 vegetables,10 fruits ,20 tools ,20 household , 10 vehicles, 10 stationery.Results 1.HNT items to determine: 22 items were excluded due to the completion of the three groups were not significantly different; 8 items were excluded due to the completion of the normal elderly group was lower than 75%; 10 items were excluded from the analysis of variance Fvalue of the minimum value.The remaining 60 items,according to the size of the arrangement and completion rates were divided into two versions of odd and even, respectively HNT-Ⅰ and HNT-Ⅱ.2.HNT characteristics:in normal elderly group age, sex were found to had no significant factors affecting overall scores of HNT-Ⅰ and HNT-Ⅱ but level of education, MMSE score was significantly correlated (P <0.05).As cut-off score ≤ 26 for spontaneous naming of HNT,the sensitivities of HNT-Ⅰ for aMCI ,mild AD were 44%, 84% respectively, specificities were all around 84%; the sensitivities of HNT-Ⅱ for aMCI , mild AD were 56% ,83% respectively,specificities were all around 80%.Conclusion HNT is a Chinese cultural background,time-consuming short and good name validity test,and it is worth further promoting the application.
7.RNA interference targeting actin-associated protein Transgelin inhibits human pancreatic carcinoma xenograft in nude mice
Xia BAI ; Lianfeng ZHANG ; Lin ZHOU ; Ahong ZHAO ; Yuling SUN
Chinese Journal of General Surgery 2013;28(7):538-541
Objective To investigate the in vivo effect of silenced actin-associated protein Transgelin on the growth of human pancreatic carcinoma xenograft in nude mice.Methods Human pancreatic cancer cell line BxPC3 were transfected with small hairpin RNA (shRNA) eukaryotic expression vector targeting Transgelin gene.RT-PCR and Western blot were used to analyze Transgelin expression after transfection.24 animal models were randomly divided into three groups with 8 in each:Experimental group (transplanted BxPC3/Transgelin shRNA),negative control group (transplanted BxPC3/Neo) and untreated group (transplanted BxPC3).Tumor size was measured weekly.All mice were sacrificed after 28 days.Tumor volume was calculated,inhibitory effect was analyzed.Immunohistochemical staining of paraffin sections for Transgelin and proliferating cell nuclear antigen (PCNA) proteins were performed.Results Tumors varied in sizes among 3 groups (all P < 0.05).On day 21 and 28 tumor was significantly smaller in experimental group than those in control groups.Tumor weighed(0.74 ±0.21) g in experimental group,lower than that in negative control group(1.42 ± 0.28) g and untreated group(1.59 ± 0.24) g (all P < 0.05).The inhibitory effect was 53.5% in experimental group.The PCNA index was significantly lower in experimental group than those in control groups (all P < 0.05).Conclusions Deletion of Transgelin gene can significantly inhibit the proliferation and tumor growth of BxPC3 cells in nude mice.
8.Quantitative dynamic contrast enhanced MR in the prediction of response in breast cancer patients undergoing neoadjuvant chemotherapy
Liyun ZHAO ; Renzhi ZHANG ; Chunwu ZHOU ; Jing LI ; Lin WANG
Chinese Journal of Radiology 2013;47(8):704-708
Objective To investigate whether quantitative dynamic contrast enhanced MR can predict final pathologic response in primary breast cancer patients undergoing neoadjuvant chemotherapy (NAC).Methods Forty seven patients who were pathologically proved infiltrating ductal carcinoma with core needle puncture biopsy were examined before NAC and after 2 cycles of treatment and the quantitative parameters (Ktrans,Kep and Ve) were analyzed prospectively.Histological response is categorized as non-major histological response (NMHR) and major histological response (MHR).Quantitative parameter changes measured after 2 cycles of NAC were compared between MHR and NMHR using non parametric tests (Mann-Whitney U test) and pretreatment parameters were compared using independent samples t tests.Receiver operating characteristic curve (ROC) was used to determine the best predictor and cutoff value.Results Fifteen patients were grouped into MHR and 32 patients were NMHR.Pretreatment parameters(Ktrans,Kep and Ve) were(1.51 ±0.33) /min,(2.97 ± 1.06) /min and (0.55 ±0.16) in MHR and (1.53 ±0.40) /min,(2.82 ± 0.99) /min and (0.57 ± 0.20) in NMHR.There was no significant difference between the two groups (t values were-0.123,0.450 and-0.380,respectively,P > 0.05).Changes inkinetic parameters(K,Kep and Ve) were-88.2% (-96.0% to 1.5%),-62.5% (-94.3% to -8.7%) and-57.0%(-82.1% to 55.5%) in MHRand-8.1%(-88.5% to 32.4%),-18.2% (-62.1% to 145.9%) and-4.7% (-83.1% to 95.7%) in NMHR.There were significant difference between the two groups (Z values were 4.359,4.359 and 3.332,respectively,P < 0.01).The areas under ROC curve of AKtrans,AKep and Ktrans after 2 cycles of NAC were all 0.898.Sensitivity of the three parameters for predicting NMHR were 87.5%,90.6% and 78.1%,and specificity were 86.7%,80.0% and 93.3%,respectively.Conclusion Quantitative dynamic contrast enhanced MRI can predict final pathologic response in primary breast cancers after 2 cycles of NAC.
9.Correlations between nursing students’discrimination against mental patients and exposure to them
Guoying WEI ; Jiankui LIN ; Shengmao PAN ; Chunyang ZHAO ; Ying ZHOU
Modern Clinical Nursing 2014;(3):70-72
Objective To investigate correlations between nursing students’discrimination on psychopaths and exposure to them.Method One hundred and twenty-one nursing students were involved in the investigation by a general information questionnaire,a discrimination against mental patients scale(DAMPS)and an exposure to mental patients scale(FLS).Results The total mean score on discrimination,scores on isolation dimension and scores on capability were all significantly lower than the norms(all P<0.01).Negative correlation was observed between nursing students’discrimination against patients and exposure to patients(r=-0.31,P<0.05). Conclusion Measures should be taken to encourage nurses to understand patients so as to alleviate their discrimination.
10.Effect of depressive disorder on ventricular remodeling and its mechanism in acute myocardial infarction rats
Guoyi HU ; Daliang ZHOU ; Lin WEI ; Xuezhong ZHAO
Chinese Journal of Geriatrics 2010;29(11):944-948
Objective To observe the effect of depressive disorder on ventricular remodeling and its mechanism in acute myocardial infarction (AMI) rats. Methods Forty-six AMI Wistar rats were randomly divided into sham-operation (n=10), AMI (n=12), depression (n=12), neurostan by open field test, and the detection of angiotensin Ⅱ (Ag Ⅱ ), aldosterone (ALD), malondialdehyde (MDA), superoxide dismutase (SOD) were performed, the pathological sections were observed under light and electron microscopes. Results Compared with sham-operation group, depression group had decreased values of squares crossing times, rearing times and grooming time, increased time of staying in the central square and defecation. Compared with depression group, AMI and neurostan treatment groups had increased values of squares crossing times, rearing times and grooming time,decreased time of staying in the central square and defecation (F=16. 9, 44.56, 71.79, 34.86,29. 18, P<0.01). At the 4 week of test, the left and right ventricular relative weights (LVRW,RVRW) and thickness of interventricular septum were (1.63±0.15) mg/g, (0. 48±0. 10) mg/g and (1.75 ± 0. 38) mm in sham-operation group, the corresponding data were (2.06±0.21) mg/g,(0.62±0.10) mg/g and (2.25±0.30) mm in AMI group, (2.90±0.47) mg/g, (1.00±0.28) mg/gand (2.58±0.34) mm in depression group, (2.20±0.34) mg/g, (0.67±0.15) mg/g and (2. 25±0.23) mm in neurostan treatment group. Compared with sham-operation group, AMI, depression and neurostan groups had obviously increased values of LVRW, RVRW and thickness of interventricular septum. Compared with depression group, AMI and neurostan groups had decreased LVRW, RVRW and thickness of interventricular septum (F=6.31, 21.9, 115.7, 9.91, P<0.05). And the depression also could aggravate edema and injury of ultrastructure in myocardial tissue. The values of AgⅡ , ALD, MDA and SOD were (1957.5±662.6) ng/L, (0.453±0.111) ng/L, (16. 00±3.03)nmol/L and (80.57 ± 7.00) U/ml in depression group, the corresponding data were (1143.8± 98.0)ng/L, (0.198±0.087) ng/L, (8.03 ± 0.44 ) nmol/L and (95.20 ± 4.87) U/ml in sham-operated group, (1407.5±255.8) ng/L, (0.295±0.027) ng/L, (11.18±4.30) nmol/L and (87.33±3.51)U/ml in AMI group, (1400.0±239.0) ng/L, (0.326±0.073) ng/L, (11.88±3.36) nmol/L and (89.13 ±0.17) U/ml in neurostan group. After 4 weeks, the values of Ag Ⅱ , ALD and MDA increased in depression group while the level of SOD reduced (F=6.58, 11.9, 11.39, 8. 82, P<0.05). Conclusions Depressive disorder after AMI in rats can aggravate ventricular remodeling and lower the ability of antioxygen.