The high production inulase strain was screened from the soil sample where burdock planted in Qin Village,Bayou Town,Pei County,Xuzhou.Inulase activity were determined which produced by 40 strains separated from soil.Three mold stains,C122803、D081506 and D081513,which had higher ability of producing inulase were obtained by using transparent circle method as initial screening and rocker method as re-screening.Enzyme activity of the three strains were 1.411U/ml,1.895U/ml,1.792U/ml,separately.Enzyme activity of D081506,1.895U/ml,was the highest.The fermentation conditions of D081506 were studied and the optimized conditions were lappa juice 2.0%,yeast extraction 1.6%,(NH4)2SO4 0.5%,NaCl 0.5%,K2HPO4 0.5% and pH 5.0.Inulase activity of D081506 was 2.9578U/ml which increased 56.09% under the condition of 27℃,140r/min,24h.

OBJECTIVETo explore clinical presentations and the operational opportunity of traumatic cervical disc herniation.

METHODSFrom June 2002 to June 2009,40 patients with traumatic cervical disc herniation were treated. There were 24 males and 16 females, with an average age of 43.2 years old ranging from 30 to 56 years. There were 36 patients with single intervertebral disc herniation and 4 patients with double. The injury level of those patients were at C3,4 in 16 cases, C4,5 in 10 cases, C5,6 in 12 cases and C6,7 in 6 cases. Among them, 18 patients showed spinal cord signal changes by MRI, 5 patients suffered from nothing but neck and shoulder pain, 8 patients with nerve root stimulation; 10 patients with spinal cord compression, and 17 patients had both nerve root stimulation and spinal cord compression symptoms. Conservative treatment were applied to 13 patients with neck and shoulder pain and nerve root stimulation, 5 cases of which were transferred to operation in case of poor effects, and Odom criteria were used to assess operational effects. Twenty-seven patients with spinal cord compression accepted operation from 1 to 27days after their trauma, 16 of which were operated in 5 days (early operational group with an JOA score of 11.3 +/- 2.8), other 11 cases were operated from 5 to 27 days (delayed operational group with an JOA score of 11.4 +/- 2.9 ), then functional assessment of spinal cord were assessed according to JOA criteria.

RESULTSThree patients who were transferred from conservative treatment recovered excellently according to Odom criteria and the other 2 were good at final followed-up. JOA score of early operational group increased from (11.3 +/- 2.8) to (15.3 +/- 1.8) one week after operation (P < 0.01), and (15.9 +/- 1.4) at final followed-up (P < 0.01). JOA score of delayed operational group increased from (11.4 +/- 2.9) to (14.0 +/- 2.6) one week after operation (P < 0.01), and (15.3 +/- 1.5) at final followed-up (P < 0.01). The recovery ratio of JOA score of early operational group were (74.6 +/- 16.8)% 1 week after operation,and increased to (85.6 +/- 13.6)% at final followed-up; while that of delayed operational group were (50.9 +/- 17.5)% and (68.2 +/- 21.5)%, and there were significant difference between early operational group and delayed operational group both at 1 week postoperation and final followup (P < 0.05).

CONCLUSIONThere are some difference in pathological segment and imaging manifestation between traumatic cervical disc herniation and cervical spondylosis. Early operation is favorable to the recovery of neurological function in patients with spinal cord compression.

Adult ; Cervical Vertebrae ; injuries ; surgery ; Female ; Humans ; Intervertebral Disc Displacement ; physiopathology ; surgery ; Male ; Middle Aged

Objective To investigate the epidemiological characteristics of human brucellosis in Ulanqab of Inner Mongolia.Methods Three hundred and twenty patients with suspected brucellosis were selected,who had registered in the Ulanqab Center for Endemic Disease Control of Inner Mongolia from April to June 2011.The investigation covered general situation,such as gender,age,occupation and main clinical symptoms and so on.Blood samples were collected,and Rose Bengal plate agglutination test(RBPT) was used for serum screening.Those who were tested positive in RBPT were confirmed with tube agglutination test (SAT).Brucellosis was diagnosed according to Diagnostic criteria for Brucellosis (WS 269-2007).Data were analyzed with statistical software(SPSS 17.0).Results One hundred and thirty-four cases were positive in RBPT of the 320 people surveyed,of which 93 cases were positive in SAT; antibody titers were higher than 1 ∶ 100(++),therefore they were diagnosed as brucellosis,and the ratio was 29.1％(93/320).The number of patients with suspected brucellosis who were negative in SAT test was 41,and the ratio was 12.8％ (41/320).Among the 93 people who were infected,the constituent ratio of farmers and herdsmen who engaged in livestock was the highest,accounted for 63.4％(59/93) and 24.7％ (23/93) of the total number of patients ; infection rate of male (30.9％,55/178) was higher than that of females (26.7％,38/142) ; the number(39) of brucellosis patients who were over the age of 51 was the highest,and the ratio is 42.0％.The onset season mainly in May and August; main route of exposure was bare hands lambing,midwifery and contact with infected sheep pollutants.Conclusions Sheep is the main source of human Brucella infection in Ulanqab.It is the key to control the spreading of brucellosis through improving awareness of disease prevention among farmers and herdsmen as well intensifying the prevention and control of Brucella infection between livestock.

OBJECTIVETo observe the effect of recombinant adenovirus Ad-ING4 on K562 cells.

METHODSHuman ING4 recombinant transfer vector pAdTrack-CMV-ING4 was constructed by enzyme digest and ligation of human ING4 gene which was obtained through site specific point mutation of mouse ING4. The vector was co-transduced into BJ5183 E. coli with pAdEasy-1. The new recombinant adenovirus vector pAdEasy-1-pAdTrack-CMV-hING4 was transfected into QBI-293A cells. To obtain the ING4 recombined adenovirus (Ad-ING4). Ad-ING4 was used to infect K562 cells. The effect on K562 cells of ING4 was tested by LSCM FCM and immunohistochemistry.

RESULTSHuman ING4 recombinant adenovirus vector was constructed successfully, and high titre ING4 recombinant adenovirus (Ad-ING4) was obtained. ING4 can down-regulate the expression of bcl-2 and up-regulate expression of bax. The apoptosis of K562 cells induced by ING4 was proved by LSCM FCM and immunohistochemistry. The apoptosis rate was 19.7% (after 72h), which displayed significant difference compared with that of control groups (P < 0.01).

CONCLUSIONAd-ING4 can inhibit the growth of K562 cells and induce the cells apoptosis. The human ING4 recombinant adenoviral vector constructed might provide an approach to the target therapy of tumors.

Adenoviridae ; genetics ; Animals ; Apoptosis ; genetics ; Base Sequence ; Carrier Proteins ; genetics ; Cell Cycle Proteins ; genetics ; Cell Proliferation ; Genetic Vectors ; Homeodomain Proteins ; genetics ; Humans ; K562 Cells ; Mice ; Molecular Sequence Data ; Mutagenesis, Site-Directed ; Plasmids ; genetics ; Transfection ; Transformation, Bacterial ; Tumor Suppressor Proteins ; genetics

OBJECTIVETo explore the pharmacological anti-inflammatory mechanism of Chinese formula Qingwen Baidu Decoction (清瘟败毒饮, QBD) from the view of holistic biology.

METHODSThe rats were randomly divided into a normal conrol group, a lipopolysaccharide (LPS) group, the low- and high-dose QBD groups, and a dexamethasone (DXM) group. NR8383 cells were treated with culture fluid containing 6% serum from rats of each group respectively. Inflammatory mediators were detected by reverse transcription polymerase chain reaction (RT-PCR), Western blotting hybridization, enzyme linked immunosorbent assay (ELISA), polymerase chain reaction (PCR) gene array and antibody array.

RESULTSIt is showed that the levels of interleukin (IL)-1α, IL-4 and IL-12 were enhanced in the low-dose QBD group; levels of IL-1α, IL-12 and IL-18 were augmented in the high-dose QBD group, compared with the LPS group after ELISA detection. Western blot showed that IL-1β and tumor necrosis factor (TNF)-α expression of the control group were lower than other groups. IL-1β level of the low-dose and high-dose QBD groups detected by RT-PCR was higher in early stage but lower after 24 h than that of the control group (P<0.01). Expression of 84 main inflammatory cytokines and receptors was detected by rat inflammatory cytokines and receptors PCR array. Up-regulation genes were 22 in both the LPS group and the low-dose QBD group, among which 16 up-regulating genes were the same. In these 16 genes, the up-regulating amplitude of 9 genes in the low-dose QBD group was less than that in the LPS group, 4 were similar to and 3 were more. Twenty-nine main cytokines were inspected by rat cytokine antibody array. Intergroup gray value differences were found in 7 expressed cytokines. The levels of these 7 cytokines in the low-dose QBD group were all lower than those in the the LPS group.

CONCLUSIONSQBD has anti-inflammatory effect on sepsis by changing the level of inflammatory mediators.

Animals ; Anti-Inflammatory Agents ; pharmacology ; therapeutic use ; Blotting, Western ; Cell Line ; Cytokines ; metabolism ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Electrophoresis, Agar Gel ; Inflammation Mediators ; metabolism ; Lung ; drug effects ; metabolism ; pathology ; Male ; Nucleic Acid Denaturation ; Rats, Sprague-Dawley ; Reverse Transcriptase Polymerase Chain Reaction ; Sepsis ; drug therapy ; pathology

H4IIE hepatoma cells transfected by recombinant adiponectin adeno-associated virus vectors were effectively mediated adiponectin gene expression and enhanced the ability of suppressing glucose production of H4IIE cells at low concentration of insulin.Improvement of the insulin sensitivity in hepatocytes may contribute to the glucose-lowering effect of adiponectin.

The eye is a highly protected organ , which makes it a formida-ble task to develop an effective drug delivery approach for ocular disea-ses.Transport of drugs applied by traditional dosage forms such as topical and intravitreal routes of administration is severely restricted to the eye , especially to the posterior segment areas.During the past decades , great progress has been made in ocular drug delivery systems facilitated by new technologies such as microemulsion , nanosuspension , nanoparticle , lipo-some, niosome, dendrimer, contact lens, intraocular implants, ionto-phoresis and microneedle , et al.In this review , recent developments of ocular drug delivery systems are summarized.

OBJECTIVETo develop a multiplexed mutagenically separated PCR (MS-PCR) for single nucleotide polymorphism (SNP) loci typing in mitochondrial DNA coding regions and to study the applications in investigating the allele frequencies and haplotypes of four SNP loci in mitochondrial DNA coding regions in Chinese Chengdu Han population.

METHODSFour SNP loci C12705T, A8701G, G8584A and C10400T, two allele specific forward primer with 4 bases different in size and a common reverse primer were designed for SNP typing. The primers simultaneously were amplified in a single tube. The genotyping of SNPs was determined by the two allele specific fragments different in size after polyacrylamide gel and silver staining.

RESULTSThe different SNP loci comprised a single band with different size respectively. Typing results were completely consistent with those by direct sequencing. The allelic frequencies of C12705T, A8701G, G8584A and C10400T were 0.3813/0.6187, 0.4813/0.5187, 0.8250/0.1750 and 0.4938/0.5062 respectively. A total of 6 different haplotypes was identified and the genetic diversity reached 0.7137.

CONCLUSIONMultiplexed MS-PCR is a simple, rapid, accurate and efficient method for SNP typing, which will be very powerful for SNPs in the database establishing of mitochondrial DNA coding regions, the testing of forensic and population genetics research.

Base Sequence ; DNA, Mitochondrial ; chemistry ; genetics ; Gene Frequency ; Genetic Variation ; Genotype ; Humans ; Polymerase Chain Reaction ; methods ; Polymorphism, Single Nucleotide ; genetics ; Sequence Analysis, DNA

INTRODUCTIONWe aimed to examine the turnover of chronic atrophic gastritis (CAG) pathologically and endoscopically and explore its potential causes.

METHODSA retrospective analysis was conducted of prospective data collected from 1,592 patients who underwent gastroscopy three times or more during the period 1985-2009 at Renji Hospital, Shanghai, China. Pathological and endoscopic findings were analysed. Data collected included gender, age, length of follow-up period, family history, past medical history, history of Helicobacter (H.) pylori infection, drug history for the use of proton pump inhibitors (PPIs), antacids and non-steroidal anti-inflammatory drugs [NSAIDs], and lifestyle history, including the patients' eating habits.

RESULTS23 (1.44%) patients presented with gastric cancers resulting from CAG and 349 (21.92%) patients had dysplasia. Pathological and endoscopic findings suggested that the proportion of patients with worsening gastric mucosa during the atrophic and intestinal metaplasia (IM) phases was over 35% with increasing age. Gastric mucosa was found to be pathologically aggravated by carbonated drinks and fast food, and pathologically degenerated by H. pylori infection. Smoking deteriorated the gastric mucosa. Side dishes of vegetables may benefit the gastric mucosa even in the atrophic and IM phases.

CONCLUSIONOur findings support the consensus that CAG is a progressive disease. Potential factors that were found to affect the state of the gastric mucosa in our patient group were gender, H. pylori infection, use of PPIs or NSAIDs, and intake of vegetable side dishes, spicy food, carbonated drinks and fast food.

Adult ; Age Distribution ; Biopsy ; China ; epidemiology ; Disease Progression ; Female ; Follow-Up Studies ; Gastric Mucosa ; pathology ; Gastritis, Atrophic ; diagnosis ; epidemiology ; Gastroscopy ; Humans ; Male ; Medical Records ; Middle Aged ; Morbidity ; trends ; Prognosis ; Retrospective Studies ; Severity of Illness Index ; Sex Factors ; Time Factors

OBJECTIVETo investigate epidermal growth factor receptor (EGFR) gene mutations in exons 19 and 21 of patients with non-small cell lung cancer (NSCLC) and to analyze the relationship of EGFR mutations with clinicopathological features and prognosis.

METHODSThe EGFR gene exons 19 and 21 of paraffin-embedded tumor tissue were amplified by PCR, followed by direct sequencing in 282 surgically-removed specimens of NSCLC. The relationship of EGFR gene mutations in NSCLC with clinicopathological features and prognosis were analyzed.

RESULTSEGFR mutations were detected in 120 of 282 (42.6%) patients with NSCLC. There were 61 cases of the mutations in exon 19 and 66 cases of the mutations in exon 21, including 7 cases of the mutations both in exons 19 and 21. Mutations were more frequently observed in women (55.2%, 53/96) than in men (36.0%, 67/186), in 51 to 60-years-old (51.3%, 39/76) than ≤50-years-old (30.4%, 21/69) and >60-years-old (43.8%, 60/137), in non-smokers (54.3%, 69/127) than smokers (32.9%, 51/155), there was negative correlation of EGFR mutations with smoking status (P=0.000, rs=-0.216). EGFR mutations were more frequently observed in adenocarcinomas (47.8%, 64/134), bronchiolo-alveolar carcinomas (73.0%, 27/37), adenosquamous carcinomas (7/9) than squamous cell carcinomas (23.6%, 17/72) and other types (16.7%, 5/30). The EGFR mutation rate in the well differentiated, the middle differentiated, the poorly differentiated and the undifferentiated was 55.7% (68/122), 50.8% (30/59), 22.7% (17/75), 19.2% (5/26) respectively, the incidences of EGFR mutations decreased with the degrading of differentiation, there was positive correlation of EGFR mutations with differentiation of lung cancer (P=0.000, rs=0.296). The patients with EGFR mutations had better prognosis than those with wild-type EGFR (P=0.027). There was no association of EGFR mutations with clinical TNM stage.

CONCLUSIONSEGFR mutations occur frequently in females, non-smokers and adenocarcinomas, bronchioloalveolar carcinomas, and adenosquamous carcinomas. The patients with EGFR mutations have better prognosis. The results may offer a practical approach to select the patients who may benefit from anti-EGFR target therapy.

Adenocarcinoma ; genetics ; Adenocarcinoma, Bronchiolo-Alveolar ; genetics ; Adult ; Age Factors ; Aged ; Aged, 80 and over ; Carcinoma, Adenosquamous ; genetics ; Carcinoma, Non-Small-Cell Lung ; genetics ; pathology ; Exons ; Female ; Gene Amplification ; Genes, erbB-1 ; Humans ; In Situ Hybridization, Fluorescence ; methods ; Lung Neoplasms ; genetics ; pathology ; Male ; Middle Aged ; Mutation ; Mutation Rate ; Polymerase Chain Reaction ; methods ; Prognosis ; Receptor, Epidermal Growth Factor ; genetics ; Sequence Analysis, DNA ; methods ; Sex Factors ; Smoking ; Survival Rate