OBJECTIVE: To investigate the role of TREM-1 in tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) secretion from lipopolysaccharide-induced mice macrophage cell lines RAW264.7. METHODS: Designing and synthesizing small interfering RNA (siRNA) with high intangerference ratio, then constructing pLKO1.1-puro-TREM-1 The mice macrophage cell lines RAW264.7 were divided into four groups: control group (control); lipopolysaccharide group (LPS); empty plasmid group (pLKO1.1) - just transfected with pLKO1.1; interference group (siRNA) - transfected with pLKO1.1-puro-TREM1.24 h after stimulation with LPS, real-time PCR was used to detect the mRNA levels of TREM-1, TNF-α and IL-1β respectively. The concentrations of TNF-α and IL-1β were assayed by ELISA. RESULTS: In siRNA group, the mRNA levels of TREM-1, TNF-α and IL-1β were decreased significantly (P<0.01): moreover, the concentrations of TNF-α and IL-1β were lower than other groups significantly (P<0.01). CONCLUSION: Small interfering RNA may reduce TNF-α, IL-1β secretion in LPS-induced macrophage 264.7 through inhibiting the expression of TREM-1 gene.

0.05).Conclusions The reduced expression of HLA-G on placenta in ICP patients may alter the maternal-fetal immune response and thus be involved in the pathogenesis of this disorder. Dexamethasone can upregulate the expression of HLA-G on placenta.The 14 bp deletion polymorphism in exon 8 of HLA-G gene might not have a significant influence on the development of ICP.

Objective To investigate the infection status of hepatitis B virus(HBV) and hepatitis C virus(HCV) in healthy adult in Xi′an ,in order to provide references for hepatitis prevention and health education .Methods A total of 1 052 healthy adults from 10 communities in Xi′an were collected by using multistage stratified random sampling method .HBV serum markers and anti‐HCV antibody were detected ,and characteristics of distribution of HBV and HCV infection were analysed .Results A total of 37 adults were observed with positive hepatitis B surface antigen(HBsAg) ,the total positive rate was 3 .52% ,and the positive rate of male and female was 4 .08% and 3 .07% respectively ,no statistically significant difference was found between male and female(P>0 .05) .Apart from male adults aged 30 - < 40 and 40 - < 50 ,there were no statistically significant differences between each age groups in male and female ,and between female and male in the same age groups(P> 0 .05) .A total of 31 adults were observed with HBsAg ,hepatitis B e antibody (HBeAg)and hepatitis B core antibody(HBcAb) positive ,the positive rate was 2 .95% .The positive rate of hepatitis B surface antibody(HBsAb) was 54 .18% .Serological patterns between different gender had no statistically signifi‐cant differences(P>0 .05) .A total of 9 adults(0 .86% ) were observed with positive anti‐HCV antibody ,and the positive rate of male and female was 0 .64% and 1 .02% respectively ,no statistically significant difference was found between male and female(P>0 .05) .Conclusion Healthy adults in Xi′an have relatively low infection rates of HBV and HCV ,while for the control of hepatitis B and hepatitis C ,further strengthening the health education ,improving awareness of prevention and routine monitoring infectious dis‐eases and vaccination may still be necessary .

Objective To investigate the serum levels of tumor markers CEA,CA724,PGⅠ,PGⅡ,PGI/PGII and SF in gas-tric cancer.Methods The serum levels of CEA,CA724,PGⅠ,PGⅡ,PGI/PGII and SF were detected in 46 healthy con-trols,45 atrophic gastritis patients and 39 gastric cancer patients.Serum levels of CEA,CA724 were measured by ELC meth-od,PGⅠ,PGⅡ by time resolved fluorescence immunoassay (TRFIA)and SF by immunoturbidimetry(ITM).Results ①Compared to the healthy controls,the statistical contrast of serum levels of CEA,CA724,PGⅠ,PGⅡ and PGI/PGII except SF was significant in gastric cancer patients(P<0.05),only PGⅠ,PGⅡ,SF had significant difference in atrophic gastritis patients (P<0.05).Compared to atrophic gastritis patients,the serum levels of CEA,CA724 were significantly higher,but PGⅠwas lower in gastric cancer patients(P<0.05).②When CEA,CA724,PGⅠ,PGⅡ,PGI/PGII and SF were used to di-agnose gastric cancer individually,the sequence of the area under ROC curve was CEA,SF,CA724,PGI/PGII,PGⅡ and PGⅠ.Only the areas of PGⅠ,PGⅡunder ROC curve had significant statistical difference (P<0.05).③The sensitivity,speci-ficity,PPV and NPV were different when these indexes were used to diagnize gastric cancer individually or incorporatedly. Conclusion The serum levels of tumor markers CEA,CA724,PGⅠ,PGⅡ,PGI/PGII and SF had important reference value for the diagnosis of gastric cancer although the diagnostic value was different individually or incorporatedly;the content of serum PG and the ratio of PGI/PGII were closely related to the gastric mucosa.

OBJECTIVETo study the effects of pentobarbital sodium in generation and modulation of rhythmical respiration in neonatal rats.

METHODSThe effects of pentobarbital sodium were examined on hypoglossal nerve (XII) rootlets and inspiratory neurons in the medullary preparations including the medial region of the nucleus retrofacialis, pre-Bötzinger complex and the dorsal respiratory group of neonatal rats aged 0-3 days. The electrical activity of XII nerve rootlets and inspiratory neurons were recorded. Different doses of pentobarbital sodium (20, 40, 60, 80 micromol/L) were added into modified Krebs solution to observe changes in the discharge activity of XII nerve and inspiratory neurons. Bicuculline was used to further investigate the mechanisms that pentobarbital sodium suppresses respiration.

RESULTSThe discharge activity inhibition of XII nerve was increased as pentobarbital sodium doses increased from 20 to 60 micromol/L, but no significant difference was observed between the doses of 60 and 80 micromol/L. Bicuculline can partly restore the rhythmical respiration discharge activity.

CONCLUSIONPentobarbital sodium can suppress respiration partly via GABAA receptors.

Adjuvants, Anesthesia ; pharmacology ; Animals ; Animals, Newborn ; Dose-Response Relationship, Drug ; Medulla Oblongata ; cytology ; drug effects ; physiology ; Neurons ; drug effects ; physiology ; Pentobarbital ; pharmacology ; Rats ; Rats, Sprague-Dawley ; Receptors, GABA-A ; physiology ; Respiration ; drug effects ; Respiratory Center ; drug effects ; physiology

OBJECTIVETo explore the relationship between human leukocyte antigen-DQA1 (HLA-DQA1) allele gene polymorphism and intrahepatic cholestasis of pregnancy (ICP).

METHODSForty-five patients with ICP, eighteen ICP families, forty-five normal pregnant women and eighteen normal control families were tested for HLA-DQA1 allele gene polymorphism by polymerase chain reaction with sequence-specific primer (PCR-SSP) method.

RESULTSThe frequency of HLA-DQA1*0301 in normal pregnant women was markedly higher than that in the ICP group (P>0.05). No significant differences were observed between the frequencies of other detected HLA-DQA1 alleles in both groups. The analysis of feto-maternal or couples sharing of the HLA-DQA1 alleles showed that no significant differences were observed between the two groups.

CONCLUSIONThe above findings suggest that there is no significant association between the genetic polymorphisms in HLA-DQA1 and ICP in Chengdu district; HLA-DQA1*0301 may be a protective gene against ICP. It may prevent the development of ICP.

Adult ; Alleles ; Cholestasis, Intrahepatic ; genetics ; Female ; Gene Frequency ; Genetic Predisposition to Disease ; genetics ; HLA-DQ Antigens ; genetics ; Humans ; Polymerase Chain Reaction ; Polymorphism, Genetic ; genetics ; Pregnancy ; Pregnancy Complications ; genetics

Patent network of Chinese patent medicines is a patent group composed of several correlated patents around basic patents or core technologies characterized by traditional Chinese medicine technologies. With the clue of Tianjin Tasly Group's acquisition of seven compound Danshen patents characterized by extract feeds of Beijing Cairui Pharmaceutical Co., Ltd., we made an analysis on how Tasly builds a patent network themed on compound Danshen preparation products characterized by extract feeds, in hope of providing reference for other Chinese pharmaceutical enterprise to establish and improve key patent networks of traditional Chinese medicines.
Chemistry, Pharmaceutical ; legislation & jurisprudence ; manpower ; methods ; China ; Drugs, Chinese Herbal ; analysis ; Medicine, Chinese Traditional ; methods ; Patents as Topic ; Phenanthrolines ; analysis ; Salvia miltiorrhiza ; chemistry

The aim of the present study is to investigate the differences in cardiac function, and the expression and activity of calcium regulatory proteins between rabbit systolic heart failure (SHF) and diastolic heart failure (DHF) models. New Zealand white rabbits were randomly divided into three groups: sham operation (SO) group, DHF group (receiving abdominal aortic constriction) and SHF group (receiving aortic valve destruction and abdominal aortic constriction). The cardiac function was detected by echocardiographic and hemodynamic assays. The mRNA expression levels of sarcoplasmic reticulum Ca(2+) ATPase 2a (SERCA2a) and phospholamban (PLB) were evaluated by RT-PCR. The protein expression levels of SERCA2a, PLB, phosphoserine 16-PLB (pSer-16-PLB) and protein kinase A (PKA) were evaluated by Western blot, and the phosphorylation status of PLB was determined by the ratio of pSer-16-PLB protein level to that of PLB. The activity of SERCA2a was measured through inorganic phosphate. The activity of PKA was measured by gamma-(32)P ATP-binding assays. Compared with SO group, there were significantly increased ventricular wall thickness, raised left ventricular end diastolic pressure (LVEDP), reduced diastolic function in DHF group (P<0.05 or P<0.01), and significantly increased ventricular cavity size and LVEDP, reduced systolic function in SHF group (P<0.05 or P<0.01). The expression levels of SERCA2a in DHF and SHF groups were lower than that in SO group (P<0.05), while the expression and activity of PKA in DHF and SHF groups were higher than that in SO group (P<0.05 or P<0.01), and there was no significant difference between DHF and SHF groups. The expression levels of PLB and pSer-16-PLB as well as the phosphorylation status of PLB and activity of SERCA2a in SHF group were lower than those in DHF and SO groups respectively. Posing a contrast, the phosphorylation status of PLB and activity of SERCA2a in DHF group were higher than that in SO group (P<0.05). These results indicate that the SHF and DHF models were successfully established, and there are some differences in the expression and activity of calcium regulatory proteins between two models.
Animals ; Calcium-Binding Proteins ; metabolism ; Disease Models, Animal ; Heart Failure, Diastolic ; metabolism ; Heart Failure, Systolic ; metabolism ; Rabbits ; Sarcoplasmic Reticulum ; metabolism ; Sarcoplasmic Reticulum Calcium-Transporting ATPases ; metabolism

OBJECTIVETo assess the value of multiplex PCR-denaturing high-performance liquid chromatography (PCR-DHPLC) method for screening large duplications or deletions in patients with Duchenne muscular dystrophy (DMD) and spinal muscular atrophy (SMA).

METHODSDNA was extracted from peripheral venous blood samples from 35 DMD and 6 SMA patients. Large duplications or deletions were screened with multiplex PCR coupled with DHPLC method. The results were validated with testing of positive and negative controls.

RESULTSKnown duplications or deletions in all controls were reliably detected with multiple PCR coupled with DHPLC. Large duplications or deletions were found in 71.4% of 35 DMD patients, which included 5 large duplications and 20 large deletions. For SMA patients, deletions of SMN1 exon 7 were detected in 16 samples.

CONCLUSIONMultiplex PCR coupled with DHPLC method is an effective and reliable method for detecting large genomic duplications or deletions in patients with DMD or SMA.

Chromatography, High Pressure Liquid ; Dystrophin ; genetics ; Gene Deletion ; Gene Duplication ; Humans ; Multiplex Polymerase Chain Reaction ; Muscular Atrophy, Spinal ; diagnosis ; genetics ; Muscular Dystrophy, Duchenne ; diagnosis ; genetics ; Survival of Motor Neuron 1 Protein ; genetics