Objective:To evaluate the effectiveness of using two specimens for ABO grouping on the prevention of ABO-incompatible transfusions caused by sample errors. Methods A two specimen policy for blood samples of pre-transfusion testing was implemented from July 2007. This policy was defined as that for patients requiring transfusion or likely to require transfusion,ABO group was determined twice on 2 separate-samples. The rate of mislabeled samples and miscollected samples prior to blood transfusion were recorded and analyzed.Results From Jul 2007 to Jun 2009,79 115 samples for pre-transfusion compatibility testing were accepted. A total of 273 samples were identified as mislabeled. The rate of mislabeled samples was 1 in 290. The rate of miscollected samples with correction for silent errors was 1 in 1485 (23 miscollected samples of 47 507 repeat samples,with a correction factor of 1.391 2). Of the 23 miscollected samples detected by double-step typing policy,9 cases (39%) could have caused ABO-incompatible transfusions.Conclusion The risk of ABO-incompatible transfusions caused by mislabeled and miscollected samples can be reduced by two specimen policy.

Objective To study the correlation between serum homocysteine (Hcy) levels and chronic heart failure (CHF) with ultrasound cardiac function patients.Methods The subjects were 88 cases of CHF (CHF group) in our hospital between April 2014 to June 2015 between patients,selected 65 cases of healthy people as a control group over the same period in our hospital,using color Doppler ultrasound measurement of two groups patients of the left ventricular ejection fraction of patients groups (LVEF) and left ventricular end-diastolic diameter (LVEDd),and compared serum Hcy and NT-proBNP levels,LVEF and LVEDd in different NYHA classification patients,analysis of serum Hcy and NT-proBNP levels and LVEF,LVEDd between correlation of serum Hcy levels on cardiovascular incident.Results CHF group of the Hcy,NT-proBNP levels and LVEDd were significantly higher than control group (P ＜ 0.01),LVEF was significantly lower than the control group (t =31.78,P =0.00);different NYHA functional class (Ⅱ ～ Ⅳ level) of Hcy,NT-proBNP,LVEDd and LVEF compared were statistically difference (P ＜ 0.01);Pearson correlation analysis showed,CHF patients with LVEF serum Hcy levels were negatively correlated (r2 =0.974,P ＜ 0.01),with LVEDd was positively correlated (r2 =0.896,P ＜ 0.05),and higher serum Hcy levels,the higher the rate of cardiovascular happened in patients with CHF.Conclusion The serum Hcy and NT-proBNP levels in patients with CHF were significantly higher than healthy,and with the deterioration of heart function and increased while the LVEF was negatively correlated positively with LVEDd,cardiovascular events in high Hcy levels may also increase the incidence risk,so Hcy levels is expected as a new diagnostic marker CHF conditions change.

Objective To study clinicopathological characteristics of hereditary nonpolyposis colorectal carcinoma(HNPCC)-associated endometrial carcinoma(EC).Methods Totally 421 EC patients admitted to General Hospital of Tianjin Medical University from 1981 to 2006 were divided into three groups:group A:sporadic EC;group B:familial aggregation of EC;group C:HNPCC-associated EC.Results HNPCC-associated EC accounted for 6.4%(27/421).Mean age at time of diagnosis was 49.7years in group C,earlier than 56.3 years in group A(P=0.004)and 55.2 years in group B(P=0.035).There were 33.3%(9/27)patients with multiple primary carcinomas in group C.It was higher than 14.3%(9/63)in group B and 5.1%(17/331)in group A respectively(P=0.038,P＜0.01).There was no difference among the three groups in histological type or menopausal status(P＞0.05).The numbers of patients with low grade EC in group C(70.4%,19/27)and group B(61.3%,38/62)were more than that in Group A(P=0.013,P=0.023).Prognosis for group C was better than that in group A(P=0.021),and 5-and 10-year survival rate in groups A,B and C was 80%,70%;88%,85%;and 96%,96%respectively.Conclusions Mean age at time of diagnosis is earlier in HNPCC-associated EC than that in sporadic EC;patients with HNPCC-associated EC are more frequently complicated with multiple primary carcinomas and of low grade;prognosis is better.

Emerging evidence has indicated that BRCC 36-mediated K63-linked ubiquitination modification was involved in diverse cellular functions , including endocytosis , apoptosis and DNA damage repair .We previously showed that activation of cGMP/PKG pathway con-tributed to the binding of BRCC36 and the pro-fibrotic factor Smad3.The current study tested the hypothesis that BRCC 36 functions as a negative regulator of transforming growth factor-beta ( TGF-β)/Smad3 pathway and participates in cardiac remodeling .In isolated adult mouse cardiac fibroblasts , we have demonstrated that TGF-β1 treatment significantly increased the expression of BRCC 36.Over-expression BRCC36 suppressed TGF-β1-induced Smad3 phosphorylation, nuclear translocation, extracellular matrix molecular expres-sion and cell proliferation .On the contrary, silencing BRCC36 by transfection of adenovirus-carrying BRCC36 shRNA potentiated to
enhance the pro-fibrotic effect of TGF-β.In vivo, under chronic pressure overload condition-induced by transverse aortic constriction , myocardial pro-survival protein Bcl-2 and Mcl-1 expression were significantly decreased and the pro-apoptosis protein Puma was in-creased.However, the cardiac-specific over-expression of BRCC36 significantly increased myocardial Bcl-2 and Mcl-1 and inhibited Puma expression .Interestingly , we also found that sustained pressure overload resulted in a significant myocardial DNA injury in wild type mice, which was characterized by the increase of γH2AX level.However, cardiac-specific BRCC36 over-expression significantly decreased the level of γH2AX in the pressure overloaded heart in the transgenic mice , while effectively enhanced myocardial RAD 51 expression, a marker of DNA damage repair.Furthermore, BRCC36 over-expression effectively attenuated TAC-induced cardiac fibro-sis and remodeling in the transgenic mice , compared with the wild type mice .Collectively , the results have suggested that BRCC 36 ef-fectively protected heart against chronic pressure overload-induced cardiac remodeling though antagonizing TGF-β/Smad3 pathway and enhancing myocardial DNA injury repair response .

Object To study the protective effects of glycosides of cistanche (GCs) on focal cerebral ischemic rats. Methods Focal cerebral ischemia in rats was induced by 24 h occlusion of the middle cerebral artery (MCAO). The infarct area was measured by nitrobenzene thiocyanate (NBT) staining technique. The content of neurological deficits was evaluated by 0-11 scales. The activities of antioxidases and contents of MDA in ischemic brain tissue were analyzed. Results Significant decrease in infarct area and improvement in neurological deficits were observed by oral administration of GCs 125, 250 mg/kg, respectively. Significant increase in activities of SOD and GSH-Px, and significant decrease in contents of MDA in rats were also observed after 24 h MCAO. Conclusion GCs has a neuroprotective effect against focal cerebral ischemia and the effect may be related to the increase in activities of SOD and GSH-Px.

ObjectiveTo examine the application of functional reach test(FRT) in the assessment of fall risk in stroke patients with hemiplegia.MethodsThis study used a randomized repeated measures trial design. 51 post-stroke patients with hemiplegia were recruited and were assigned into three groups, fallen group, falling group and no-fall group, according to the result of the survey on the patients' history of fall. FRT was performed for the three groups respectively to obtain confidence interval that predict fall risk more effectively according to the result of FRT. Fall risk by confidence lower limit was predicted.ResultsThe reaching distance anteriorly and posteriorly in FRT was highly correlated of the number of fall(r=-0.788，P<0.01). When the reaching distance was lower than 42.15 cm, the fall risk of the examinee was highest.ConclusionFRT can be applied to predict the fall risk of the examinee, and can also be used in the assessment of fall risk in stroke patients with hemiplegia.

Objective To characterize the effects of TPP1 knockdown on Pot1a and Pot1b localization at telomeres and on the telomere end protection.Methods Knockdown of endogenous TPP1 in mouse embryonic fibroblasts(MEFs) with the retrovirus vector encoding shRNA targeting TPP1,IF/PNA-FISH was performed to determine the localization of Pot1a and Pot1b at telomeres,and TdT-FITC was applied to characterize the effects on the function of telomere end protection,cellular senescence was analyzed by SA-beta gal staining,and phosphorylated p53ser18 and p21 were examined by Western blotting.Results Pot1a and Pot1b were unable to localize at telomeres in about 65% of MEFs with TPP1 knockdown,while that was found in less than 5% of MEFs without TPP1 knockdown(t=10.96,P

OBJECTIVEVarious treatments were used in packaging and storing dry and fresh Radix Astragali in order to explore an economically practical storage method.

METHODThe experiment was designed in single-factor completely random as compared with the traditional stacking without package in which the character, quality, polysaccharide and extract contents were measured.

RESULTIf stored for long-term use, the Radix Astragali should be packaged with vacuum-exhausted bags after cleaning by water and dried, which resulted in less weight loss, higher extract and polysaccharide. However, if stored for fresh use, the fresh Radix Astragali should be packaged in vacuum-exhausted bags after cleaning by sorghum alcohol and stored under low temperatures if possible, which resulted in less loss and longer fresh time. Considering polysaccharide and extract content, it is better to use dried the Radix Astragali in storage.

CONCLUSIONBefore packaged in vacuum-exhausted bags, the dry Radix Astragali should be cleaned by water for long-term use and cleaned by sorghum alcohol for fresh use under low temperatures if possible.

Astragalus Plant ; chemistry ; Drug Packaging ; Drug Stability ; Drug Storage ; Drugs, Chinese Herbal ; analysis ; Quality Control ; Technology, Pharmaceutical ; methods

Objective:To investigate the effect of nuclear transcription factor kappa B (NF-κB)/NOD-like receptor family pyrin domain containing protein 3 (NLRP3) pathway on lipid deposition and autophagy related protein expressions in aortic atherosclerosis mice.Methods:Ten 6-week-old male C57BL/6 mice were used as control group, and 20 male apolipoprotein E gene knockout ( ApoE-/-) mice at the same age were randomly divided into AS group and bortezomib (BTZ) group ( n=10). Mice in the AS group and BTZ group were fed with high-fat diet for 8 weeks; and then, mice in the BTZ group were injected intraperitoneally with 50 μg/kg BTZ (twice a week, for 4 weeks), while mice in the AS group were injected with same amount of saline. The general states of mice in each group were observed during the experiment process. Twelve weeks after intervention, the body weight and the levels of total cholesterol (TC), triglyceride (TG), low-density lipoprotein (LDL), and high-density lipoprotein (HDL) were measured; the pathological morphology and lipid deposition of plaques at the aortic roots were observed by oil red O staining and HE staining; the expressions of NF-κB and NLRP3 were detected by immunohistochemistry; the expressions of Beclin-1, P62, and Atg12 were measured by Western blotting. Results:After 12 weeks of intervention, the body weight, contents of TC and LDL, pathological degrees, proportion of lipid deposition, positive expressions of NF-κB and NLRP3, and P62 protein expression in the AS group and BTZ group were significantly higher than those in the control group, while these indexes in the BTZ group were significantly lower than those in the AS group ( P<0.05); HDL content, protein expression levels of Beclin-1 and Atg12 in the AS group and BTZ group was significantly lower than that in the control group, while these indexes in the BTZ group were significantly higher than those in the AS group ( P<0.05). Conclusion:Inhibition of NF-κB/NLRP3 pathway can reduce lipid deposition by regulating lipid content and mediate the autophagy related protein expressions to promote autophagy, thereby inhibiting the process of AS.

OBJECTIVETo explore an economical and practical storage method for angelica roots (Angelica sinensis). Various treatments were used in packaging and storing dry and fresh angelica roots.

METHODThe experiment was designed in single-factor completely random as compared with the traditional stack without package. The character, weight, extract contents and volatile oil were measured within the storage process.

RESULTIf stored for long-term use, the dried angelica roots should be packaged with vacuum-exhausted bags cleaned with water, which resulted in less loss in weight, higher extracts and volatile oil. However, if stored for fresh use, the fresh angelica roots should be packaged in vacuum-exhausted bags after cleaned with sorghum alcohol and stored under low temperatures if possible, which resulted in less loss in weight and longer fresh time. Considering volatile oil and extract contents, it is better to use the dried angelica roots for storage.

CONCLUSIONIf stored for long-term use the dry angelica roots should be packaged with vacuum-exhausted bags cleaned with water, while for fresh use the fresh angelica roots should be packaged with vacuum-exhausted bags cleaned with sorghum alcohol and stored under low temperatures if possible.

Angelica sinensis ; Drug Packaging ; economics ; methods ; Drug Storage ; economics ; methods ; Drugs, Chinese Herbal ; Plant Roots ; Quality Control ; Time Factors