Objective To observe the neuroprotection of Baicalin on brain damage following experimental intracerebral hemorrhage in rats.Methods Rat model of intracerebral hemorrhage was induced by collagenase method.The rats were randomly divided into sham operation control group,model group,high-,middle-and low-dose drug group,treated with different dose of Baicalin.The brain water content and the level of SOD,MDA,NO and NOS were measured at the third and seventh day after modeling repectively.Results Compared with the sham operation control group,the brain water content and the level of MDA,NO and NOS were significantly higher,and the level of SOD was significantly lower in model group.The brain water content and the level of MDA,NO and NOS were significantly lower,and the level of SOD was obviously higher in high-,middle-and low-dose Baicalin group than that in model group.Conclusion Baicalin has evident protective effect on brain damage after experimental intracerebral hemorrhage in rats,which maybe related to the increase of SOD and decrease of MDA,NO and NOS.

In order to change the situations such as students’passivity and low enthusiasm in the traditional experimental teaching of Microbiology and improve students’comprehensive qualities,exploration and attempt on experimental teaching reforms including teaching contents,teaching modes,laboratory management and evaluation system of examination were done.Teaching practices showed that the normalized ex- periment syllabus based on the correct orientation of experimental teaching of Microbiology,the actualization of teaching mode of basic skill training-integrated experiment-designed experiment and the management of opening laboratory were effective measures in improving experimental teaching of Microbiology.

Objectives To explore the effects of the blood supply extent on the temperature of target site of tumor and volume of coagulation necrosis (V),and to provide experimental evidence for further precise control of dosage of high intensity focused ultrasound (HIFU) and improve the efficiency of HIFU in the treatment.Methods Twenty-four rabbit liver VX2 tumor models were established and were divided into four groups:10 d group,15 d group,20 d group,no blood supply group (rabbits were put to death in the 10 d after the models were established).The same irradiation parameters of HIFU were used to irradiate the hepatic tumor tissue of every group,the real-time temperature of target site of tumor were measured,the software from temperature controller was used to plot the time-temperature curve (TTC),V was measured after HIFU.Residual tumor tissue was resected for pathological observation and microvascular density (MVD) determination.Results (1) Histopathological analysis showed that the extent of a tumor's blood supply followed the order 10 d group ＞ 15 d group ＞ 20 d group (P ＜ 0.01).(2)Tmax,T1,k1:betweengroups had no statistical difference among 10 d group,15 d group,20 d group (P ＞0.05),T T1,and k1 between three groups with no blood supply group had statistical difference (P ＜ 0.05).(3) k2:10 d group ＞ 15d group ＞ 20d group ＞ no blood supply group;T2:10d group ＜ 15d group ＜ 20d group ＜ no blood supply group;(4)V:10 d group ＜ 15 d group ＜ 20 d group ＜ no blood supply group.Conclusions The extent of a tumor's blood supply had a significant effect on the temperature-decrease phase but not on the temperature-increase phase during HIFU treatment.The more abundant blood supply of the tumor was,the faster heat abstraction after HIFU was;and the easier the tissue return to normal temperature,the smaller the volume of coagulation necrosis tissue were.

Objective To analyse the problems presented in external quality assessment (EQA)for blood cytomorphology and propose measures for improvement.Methods Statistical analysis was performed on EQA results for blood cytomorphology from 2011 to 2013 in Shaanxi Province,including general information of participant laboratories,coincident rate,and reported incorrect results.EQA for blood cytomorphology was held two times every year in Shaanxi province,with ten pictures inclu-ding bone marrow and peripheral blood smear each time.The compact disc including twenty pictures was given to partici-pants by EMS.Participants reported two EQA results in April and September each year.The center statisticed the EQA re-sults and provided the EQA reports to every participants in June and November.Results Participating laboratories increased from 76 in 2011 to 163 in 2013.The ratio of laboratories with the coincidence rate≥80% was 80%,47%,44%,55%,77%and 96% respectively.The number for single cell with the coincidence rate≥80% was 38.The coincidence rate of peripheral blood cells was higher than that of the bone marrow on the whole.Causes of incorrect results included cell lines’misclassifi-cation,growth stage’s misclassification,insufficient identification of abnormal cytomorphology,and so on.Conclusion The identification of blood cytomorphology was unbalanced in different leveled hospitals in Shaanxi Province.To develop EQA of blood cytomorphology definitely has a positive role in improving the experimenters’skill of identifying cytomorphology.

Androstadienes ; therapeutic use ; Antineoplastic Agents, Hormonal ; administration & dosage ; Aromatase Inhibitors ; administration & dosage ; Breast Neoplasms ; drug therapy ; Drug Administration Schedule ; Female ; Humans ; Nitriles ; administration & dosage ; Postmenopause ; Triazoles ; administration & dosage

Animals ; HSP72 Heat-Shock Proteins ; metabolism ; Hypoxia ; metabolism ; physiopathology ; Male ; Motor Activity ; physiology ; Muscle, Skeletal ; metabolism ; Oxygen ; metabolism ; Physical Exertion ; physiology ; Rats ; Rats, Sprague-Dawley ; Time Factors

Antibodies, Monoclonal ; administration & dosage ; Antibodies, Monoclonal, Humanized ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Breast Neoplasms ; drug therapy ; metabolism ; Drug Administration Schedule ; Female ; Humans ; Neoadjuvant Therapy ; Paclitaxel ; administration & dosage ; Receptor, ErbB-2 ; metabolism ; Trastuzumab

Objective To investigate the variation of lipid profile in patients with acute myocardial infarction (AMI) of different age groups.Methods Total 1214 patients of AMI were admitted to our hospital from May 2007 to July 2011.The age of patients ranged 40-89 years,and patients were divided into 5 age groups with 10-years step.Differences in lipid levels were observed by using pair-wise comparison among different age groups.Results Pair-wise comparisons among different age groups indicated that TC levels were higher in 40-69 years age groups [(4.71 ± 1.08),(4.80 ± 1.30),(4.69 ± 1.03) mmol/L,respectively] than those in the 70-89 age groups [(4.41 ± 0.96),(4.38 ± 1.03) mmol/L],all P ＜ 0.05(t values were 2.381,2.323,4.382,3.965,3.317,3.096).TG levels among three age groups ＜ 59 years had no significant difference,which were higher than those in groups over 60 years.Among 50-89 years age groups,TG gradually reduced with increase of age.HDL levels were lower in 40-59 years age groups [(1.03 ± 0.23),(1.05 ± 0.26) mmol/L,respectively] than those in 60-89 years age groups [(1.11 ±0.28),(1.11±0.28),(1.16±0.34) mmol/L,respectively],allP＜0.05 (t values were-2.777,-2.789,-3.731,-2.543,-2.566,-3.644).Total cholesterol (TC) (r =-0.123,P ＜0.01),lowdensity lipoprotein cholesterol (LDL) (r =-0.139,P ＜ 0.01) and triglyceride (TG) (r =-0.287,P ＜0.01) were negatively but high-density lipoprotein cholesterol (HDL) (r =0.125,P ＜ 0.01) was positively correlated with age of patients.TC levels in female patients were higher than those in male patients in 50-89 years age groups; LDL levels in female patients were higher than those in male patients in 50-69 years age groups and HDL levels in female patients were higher than those in male patients in 40-79 years age groups (all P ＜ 0.05,t values were-2.878,-3.007,-3.352,-3.333).Conclusions Results show that the non-elderly AMI patients (＜60 years) have higher levels of TC,LDL and TG,and lower level of HDL than the elderly patients; the TC,LDL and HDL levels are higher in female AMI patients than those in male patients at the same age groups.

Objective To investigate the common pathogens of neonatal bacterial meningitis in the past 5 years,and to evaluate the brain injury in the acute phase through amplitude-integrated electroencephalogram (aEEG),brainstem auditory evoked potential (BAEP) and brain MRI.Methods Sixty children were selected from the past 5 years who were treated in Department of Neonatology,Guangzhou Women and Children's Medical Center in March 2011 to March 2015 as the objects of study.According to the results of etiological culture,the children were divided into streptococcus lactis group (14 cases),escherichia coli group (10 cases),other positive bacteria group (11cases) and culture-negative group (25 cases).The results of aEEG,BAEP and brain MRI of brain injury in the acute phase of these 4 groups were compared.Results Twenty-nine cases of the 60 patients (48.3％) showed positive blood culture,and 14 cases (23.3％) showed positive cerebrospinal fluid (CSF) culture.Streptococcus lactics and escherichia coli were found to be the most common pathogens that caused neonatal bacterial meningitis.By evaluating the cerebral function in the acute phase of 57 cases,it was found that aEEG total abnormal rate was 61.4％,escherichia coli group abnormal rate was 80.0％,while moderate to severe damage seemed to be the most remarkable feature.The abnormal rate was of statistical significance between escherichia coli group and culture-negative group (x2 =3.941,P =0.047).Forty-eight cases manifested potential anomaly evoked by brainstem auditory,with the total abnormal rate as 84.2％.A significant increase in the ratio of severe hearing loss was found in children with bacterial meningitis which was caused by escherichia coli and streptococcus agalactiae.The abnormal rate was of statistical significance between escherichia coli group and culture-negative group (x2 =4.399,P =0.036),and hearing damage caused by escherichia coli was more serious than that in other bacteria group.Of these 57 cases,MRI total abnormal rate was 77.2％,with hydrocephalus as the most common complication.Of the 44 abnormal cases,16 cases showed hydrocephalus,6 cases of which were from the escherichia coli group.The second most common complication was subdural effusion.And another 5 cases showed cerebral softening,3 cases of which were from the escherichia coli group.The data suggested that escherichia coli meningitis easily combined hydrocephalus and brain softening.Conclusions The main pathogens of neonatal bacterial meningitis is streptococcus agalactiae and escherichia coli.The brain injury in neonatal bacterial meningitis caused by escherichia coli is more serious than those caused by other pathogens.

Objective To investigate the possible mechanism of curcumin inhibition to murine melanoma growth.Methods Melanoma cell line B16F10 was injected subcutaneously into the outer side of mouse right thigh to establish a melanoma-bearing mouse model.Seven days after the establishing the model, these mice were treated with intraperitoneal injection of curcumin at 50 and 100 mg/kg respectively or RPMI 1640 culture medium as control.Fourteen days later,the mice were killed,tumor weight was calculated;the tumor nuclear factor?B activity and survivin mRNA expression were measured by Western blot and RT-PCR,respectively.Results The tumor weight was significantly lower in the curcumin-treated mice than that in the controls (P