Objective To explore the influencing factors of daunorubicin (DNR) induced apoptosis in Jurkat cells of acute lymphoblastic leukemia. Methods Jurkat cells were treated with different concentrations of DNR(0, 0.05, 0.1, 0.5 and 1 μg/mL)or pretreated with N-acetylcysteine (NAC). Cell proliferation was detected by MTT assay, cell apoptosis was observed by Hoechst/PI, reactive oxygen species (ROS) level and apoptosis were determined by flow cytometry, and the expression of survivin, bax, bcl-2 and bcl-xl mRNA was examined by RT-PCR. Results DNR siguificantly inhibited the proliferation of Jurkat cells. After treatment with 0, 0.05, 0.1, 0.5, 1 μg/mL DNR and pretreated with NAC for 24 h, ROS levels were (7.98±0.55)%, (8.88±0.86)%, (9.46±0.98)%, (17.48±2.98)%, (24.46±2.43)% and (11.59±1.29)%, respectively, and cell apoptosis rates were (11.41±1.44)%, (34.96±3.32)%, (45.58± 3.12)%, (84.19±2.65)%, (87.93±1.74)% and (80.47±0.63)%, respectively. After pretreatment with NAC, the levels of ROS were siguifieantly inhibited (P < 0.01). There was no significant difference in apoptosis rates between treatment with 0.5μg/mL DNR and pretreatment with NAC(P>0.05). The expression of bax mRNA was down regulated and the expression of survivin, bcl-2 and bcl-xl was up regulated (P < 0.05). Conclusion DNR can induce apoptosis of Jurkat cells. ROS may participate in the DNR induced Jurkat cell apoptosis, and apoptosis-related gene bax, bcl-2, bcl-xl and survivin may interact with ROS in the regulation of DNR induced Jurkat cell apoptosis.

Objective To reveal the effects of cold-dryness and modified Zhisou Power on epidermal growth factor receptor (EGFR) and neutrophil elastase (NE) in rats with COPD. Methods COPD model was established with an elastase dose into the trachea combined with exposure to smoking for 90 d; cold-dryness COPD group was further developed by exposure to a cold, dry environment for 90 d. After 90 days, cold-dryness COPD rats was divided into cold-dryness group and Zhisou Power intervention group (treated with modified Zhisou Power for 7 days). On the 97th day, all rats were killed. Pathological changes in lungs were observed. mRNA and protein expression of EGFR were measured by RT-qPCR and Western blot, and the amount of NE in serum and BALF were examined by ELISA. Results EGFR mRNA and protein expression were significantly higher in COPD group, cold-dryness group and Zhisou Power intervention group than in control group. EGFR was significantly lower in Zhisou Power intervention group than in COPD group and cold-dryness group. NE was significantly higher in serum and BALF in COPD group, cold-dryness group and Zhisou Power intervention group than in control group. NE in BALF was significantly higher in cold-dryness group than in COPD group. NE in BALF was significantly lower in Zhisou Power intervention group than in cold-dryness group. Conclusion Modified Zhisou Power can down-regulate the expression of EGFR and the mount of NE in cold-dryness COPD rats to treat COPD.

OBJECTIVETo observe Modified Zhisou Powder (MZP) on the lung function of chronic obstructive pulmonary disease (COPD) model rats of northwest China cold dryness syndrome (NCCDS).

METHODSTotally 90 male Wistar rats were randomly divided into three groups, i.e., the normal control group (n =20), the COPD model group (n =35), and the COPD of NCCDS group (n =35). The COPD model was established by tracheal dripping porcine pancreatic elastase (PEE) in combination with fumigation for 90 days. The COPD of NCCDS model was set up by tracheal dripping PEE +fumigation + cold and dry environmental stress for 90 days. Then rats in the COPD of NCCDS were randomly divided into the MZP intervention group (n =11 )and the normal saline intervention group (n =10).All intervention lasted for 15 successive days. The lung function was detected using Small Animal Lung Function Device at day 90 and day 105. And the lung pathology was also observed.

RESULTSLittle amount of sputum sound could be heard in the airway of the COPD model group and the COPD of NCCDS group. Pathological section showed alveolar ectasia, narrowed and broken alveolar septa, forming larger capsular space with infiltration of inflammatory cells. Rats in the COPD of NCCDS group showed chills, increased amount of drinking water, and loose stool. MZP could improve their symptoms. As for lung function test, compared with the normal control group, Te increased in the COPD model group (P <0.01), and EF50 decreased (P<0.05). PEF and EF50 decreased (P <0.01), Ti and Te increased (P <0.01, P <0.05) in the COPD of NCCDS group. Compared with the normal saline intervention group, PEF and EF50 increased (P < 0.01), Ti and Te decreased (P <0.01) in the MZP intervention group.

CONCLUSIONMZP could improve the symptoms of COPD rats of NCCDS, and delay the velocity of decreased lung function.

Animals ; China ; Drugs, Chinese Herbal ; therapeutic use ; Lung ; physiopathology ; Male ; Models, Animal ; Pulmonary Disease, Chronic Obstructive ; drug therapy ; Rats ; Rats, Wistar ; Respiratory Function Tests

American Medical Association ; Congresses as Topic ; Hematology ; United States

Objective To understand causes of death of diabetic inpatients and provide evidence for diabetic prevention and control. Methods Analysis of the death causes was carried out in the dead cases of diabetic inpatients in the First and Second Affiliated Hospital of Medical School,Xi'an Jiaotong University from 1991 to 2003.Results Numbers of dead diabetic inpatients of the two hospitals were 254,which accounted for 3.2% of the total dead inpatients;the main death causes of diabetic inpatients were diabetic chronic complications,taking up to 42.5% of all the causes(28.3% of cerebro-cardiovascular and 14.2% of diabetic renalfailure),tumor((20.1%)),infection(11.4%),acute complications(6.7%) amd hepaticcirrhosis(6.3%);in vascular complications,72 cases with hypertension(66.7%).Conclusion The chronic complications have been the main death cause of diabetes,and cerebro-cardiovascular diseases are most important death cause;Hypertension is the main risk factor which increases the mortality of diabetic vascular diseases.Therefore,strict control of both blood sugar and blood pressure is very important in decreasing the mortality of diabetic cerebro-cardiovascular diseases.

Objective To explore the significance and the change of miRNAs expression profile in different period of HBV infection.Methods Establish the detection method of microRNA(miRNA) by RNA DNA probe liquid chip (flexible multi-analyte profiling,xMap) and estimate the specificity,repeatability and accuracy of this method.From October 2010 to October 2011,collect HBV infected patients' periphcral blood of the First affiliated hospital of SooChow University,including acute hepatitis B,chronic hepatitis B,hepatits B liver cirrhosis,liver cancer patients and health control,each group contains 40 cases.The levels of miR-191,-223,-222,-145,-21,-31,-126,-20a,-372 of peripheral blood mononuclear cell were detected by xMap liquid chiptechnology.The level of miR-103 was taken as reference.The ratio of (the mean fluorescence intensity of target miRNAs-corresponding backgroud mean fluorescence intensity)/( the mean fluorescence intensity of miR-103-corresponding backgroud mean fluorescence intensity) as a valid data and analysis the characteristics of miRNAs expression.The SPSS 17.0 was used as statistical software.The single factor analysis of variance was used as the method to analysis group comparison,and make multiple comparison by the LSD-t method if the result with a significant difference.Results The specificity of Xmap liquid chip method to detect miRNAs was 100％ ;The repeated experiment proved that the CV value was less than 5％ in the high value reference miRNA test,less than 10％ in the low value reference miRNAs test;the accruracy experiment proved that the recovery rate was ( 100 ± 5)％ in the nine miRNAs.There were no statistically differences with miR-222 ( F =1.32,P ＞ 0.05),-191 ( F =1.98,P ＞ 0.05),-145 ( F =0.78,P＞0.05),-21(F=0.64,P ＞0.05),-31 (F =0.83,P ＞0.05),-372(F =1.75,P ＞0.05)in different groups; There was statistically significant differences in miR-223 ( F =14.56,P ＜ 0.05) among different groups,with the highest expression level in actue hepatitis B group (15.37 ± 4.01),and the lowest expression level in liver cancer group (6.91 ±3.18) ; There was statistically significant differences in miR126 (F =17.43,P ＜ 0.05)among different groups,with the highest expression level in health control group (6.33 ±2.75) and the lowest expression level in liver cancer group (2.38 ± 1.07).There were statistically significant differences in miR-20a ( F =19.484,P ＜ 0.05) among different groups,with the highest expression level in health control group (0.33 ±0.18) and the lowest expression level in liver cancer group (0.81 ±0.24).Conclusion The detection method of miRNA by Xmap liquid chip has strong specificity,high accuracy and good repeatability,suitable for large throughput clinical testing.The study for miRNA in HBV infected diseases provides a new clue to the research of chronic progress mechanism.

Objective To analyze the characteristics of TCM syndromes of children abnormal sweating;To investigate the correlation between diseases and primary and secondary syndromes. Methods Through a multi-center epidemiology investigation, 400 cases were collected to statistically analyze the five TCM syndromes of children abnormal sweating, and characteristics of each syndrome were analyzed. Results In the 400 cases of children abnormal sweating, there were 129 cases (32.25%) of dysfunction of lung-wei pattern, 50 cases (12.50%) of nutrient qi and defensive qi discordance, 84 cases (21.00%) of qi and yin deficiency pattern, 57 cases (14.25%) of dampness heat forced steamed pattern, and 80 cases (20.00%) of qi and yang deficiency pattern. Spontaneous sweating and night sweating were found in the four patterns besides qi and yin deficiency pattern, and night sweating can be mainly found in qi and yin deficiency. Each type is consistent in the syndrome differentiation and cluster analysis. Conclusion Spontaneous sweating and night sweating, each has the certification of yin and yang. Spontaneous sweating can be caused by yin deficiency while night sweating can be caused by yang deficiency. Each pattern of children abnormal sweating has its own syndrome characteristic, which can provide the basis for clinical diagnosis and treatment.

Objective To observe the expression of P21 and CDK6 in cervical squamous cell carcinoma,and to investigate the relationship between their expression and cervical squamous cell carcinoma.Methods The expression of CDK6 and P21 in 100 cases of cervical squamous cell carcinoma,20 cases of cervical CIN lesions and 20 cases of normal cervical tissues were detected by immunohistochemical ABC method,and the relationship between them and tumor differentiation,invasion depth,lymph node metastasis and clinical stage were analyzed.Results The expression rates of P21 and CDK6 in cervical squamous cell carcinoma tissues were significantly higher than those in CIN lesions and normal cervical tissues;The low expression of P21 was associated with the depth of tumor invasion,lymph node metastasis and clinical stage (P＜0.05),and was not associated with the degree of tumor differentiation (P＞0.05);The high expression of CDK6 was associated with tumor differentiation,invasion depth,lymph node metastasis and clinical stage (P＜0.05).Conclusion The abnormal expression of P21 and CDK6 may play an important role in the occurrence and development of cervical squamous cell carcinoma,and the two may have a certain significance in the prognosis of cervical squamous cell carcinoma.

Objective To investigate the signal intensity ratio and signal-to-noise ratio of breast lesions in 3.0 T MR diffusion weighted imaging with different b values.Methods Ninety seven patients with 106 solid breast lesions (44 malignant,62 benign) confirmed by pathology were retrospectively analyzed.The patients were examined by 3.0 T MR DWI with different b values (b =0,400,800,1 000 s/mm2) before surgery.The signal-to-noise ratio (SNR) and signal intensity ratio (SIR) of benign and malignant lesions were observed and measured under different b values.One-way ANOVA and t test were used to analyze quantitative data.ROC curve was used to analyze the diagnostic efficiency of SIR under different b values.Results Under different b values,class A image was found in 92 cases,class B images was found in 5 cases.While b value were 0,400,800,1 000 s/mm2,SIR of benign lesions were 2.33 ± 1.36,2.25 ± 1.13,2.06 ± 0.84,2.02 ± 0.79 respectively,SIR of malignant lesions were 2.02 ± 0.79,2.27 ± 0.85,2.61±0.78,2.82 ± 1.01 respectively.While b value was 0 or 400 s/mm2,there was no significant differences for SIR between benign and malignant lesions (t value were 1.58,1.26 respectively; P value were 0.12,0.90 respectively),but there were statistically significances between benign and malignant lesions under b value 800 s/mm2 or 1 000 s/mm2 (t value were 3.41,4.29 respectively ;P ＜0.01).There was no differences in SIR for benign and malignant lesions under different b values respectively (F value is 1.21,2.22 respectively; P ＞0.05).While b value were 0,400,800,1 000 s/mm2,the diagnostic sensitivity and specificity of SIR for breast benign and malignant lesions were 56.8％ (25/44),56.8％ (25/44),75.0％ (33/44),77.3％ (34/44) and 51.6％ (32/62),54.8％ (34/62),66.1％ (41/62),66.1％ (41/62) respectively.While b value were 0,400,800,1 000 s/mm2,SNR were 170 ±93,145 ±72,84 ±41,70 ± 39 respectively.Different b values,there was statistically significant difference between groups (F =55.89,P ＜ 0.01) ; and there were significant differences between every two b values (P ＜ 0.05).Conclusion The higher b values (800 s/mm2 and 1 000 s/mm2) are superior to lower b values in the differential diagnosis of benign and malignant breast lesions using 3.0 T MR scanner.

Objective: To observe the effects of acupuncture at the Governor Vessel acupoints plus language training on the language function and cerebral blood flow in patients with motor aphasia after ischemic stroke. Methods: Eighty-six patients were randomized into a control group and an observation group, with 43 cases in each group. Conventional symptomatic treatment was offered to both groups. Besides, the control group received language training, while the observation group received language training plus additional acupuncture at the Governor Vessel acupoints. Before and after treatment, the aphasia battery of Chinese (ABC) and Chinese functional communication profile (CFCP) were tested, and the mean velocity (Vm) and resistance index (RI) of the left middle cerebral artery (MCA) were detected. Results: The total effective rate was higher in the observation group than in the control group (P<0.05). After treatment, the observation group gained higher scores in oral expression, comprehension, repeating, naming objects, reading, and writing, as well as the general score of ABC (all P<0.05), higher than those in the control group (all P<0.05). The CFCP score increased in both groups after intervention, showing significant intra-group differences (both P<0.05), and the CFCP score was higher in the observation group than in the control group (P<0.05). After treatment, Vm of the left side MCA increased in the control group (P<0.05), while no significant change was observed in RI (P>0.05); in the observation group, Vm of the left side MCA increased and RI decreased significantly compared with the baseline (both P<0.05), and were markedly different from those in the control group (both P<0.05). Conclusion: Acupuncture at the Governor Vessel acupoints plus language training can produce valid efficacy in treating motor aphasia after ischemic stroke; it can notably improve the language function, everyday oral communication ability, and increase cerebral perfusion of the patients.