Objective To evaluate the effect of hyperbaric oxygen therapy (HBOT) in patients with severe traumatic brain injury (STBI) after craniotomy,and evaluate the difference of HBOT effects on the patients whose Glasgow coma score (GCS) were 6-8 scores and 3-5 scores.Methods Using case-control study,61 neurosurgical in-patients with STBl from February 6,2009 to November 25,2010 were divided into two groups by random digits table,30 in HBOT group and 31 in control group.Their GCS at the periods on admission,before HBOT and when they finished HBOT were recorded,as well as the Glasgow outcome score (GOS) before HBOT,finished HBOT,and 3 months after admission (GOS3M).Results The GCS finished HBOT were (12.63 ±2.70) scores in HBOT group and (11.64 ±2.50) scores in GCS 3-5 subgroup,there were statistically differences than those in control group [ (10.61± 3.01 ),(8.44 ± 1.67)scores] (P ＜0.05).The mean rank of GCS finished HBOT improvement (△GOSf) and GOS scores 3months after admission ( △ GOS3M) in HBOT group was 35.37 and 35.87,which were significantly higher than those in control group (26.77 and 26.29) (P ＜0.05).Meanwhile,the mean rank of △GOSf and △ GOS3M in GCS 3-5 subgroup was 12.14 and 13.09,which were significantly higher than those in control group (8.05 and 7.33) (P ＜ 0.05 ).In GCS 6-8 subgroup,there was no significant difference in △ GOSf and △ GOS3M between HBOT group and control group (P ＞ 0.05).Conclusion Early HBOT is effective to improve the recovery of consciousness and prognosis of the postoperative patient with STBI,especially of the patients with the special STBI (GCS 3-5 scores ).

It′s reported that RNA-binding proteins ( RBP) play key roles in post-transcriptional regulation of eukaryotic genes.The aberrations of RBP are associated with a large number of human disorders , particularly autoimmune and neuro-logic diseases .The interaction between RNA and proteins has been widely explored since the development of the method known as RNA immunoprecipitation with differential display or microarray analysis (RIP-ChIP) around the year of 2000. Since then, diverse derivatives of the RIP-ChIP, such as ultraviolet crosslinking and immunoprecipitation ( CLIP), high-throughput sequencing of CLIP cDNA library (HITS-CLIP), photoactivatable -ribonucleoside-enhanced crosslinking and immunoprecipitation ( PAR-CLIP) , and individual nucleotide resolution CLIP ( iCLIP ) have been developed .All these methods have some advantages over the original RIP-ChIP and greatly facilitate the study of RBP-RNA interactions .Addi-tionally , aided by the next-generation sequencing , transcriptome-wide identification of RBP target sites has become possible and the RNA-binding site resolution of RBP has also improved to some degree .We introduced the basic principles and processes of the interactions between proteins and RNA , focusing on the advantages , disadvantages and prospect of the present genome-wide version of CLIP .

We reconstructed the erythromycin macrocyclic lactone (6-deoxyerythronolide B, 6dEB) synthesis pathway in Escherichia coli. We first cloned all the genes needed to synthesize the 6dEB into multi-gene co-expressed vectors. Then using the recognition sequences of isoschizomers Xba I/Spe I of vectors, we assembled the related genes into a series multiple-genes recombinant plasmids pBJ144, pBJ130. The recombinant plasmids pBJ144, pBJ130 were cotransformed into BAP1 to get the recombinant BAP1(pBJ144/pBJ130). SDS-PAGE analysis showed that individual genes were expressed correctly. After inducing at low temperature, adding propionate as substrate, we validated the crude product by mass spectrometry and the 6dEB yield was about 10 mg/L. These results indicated that the synthetic pathway of 6dEB was successfully assembled and reconstructed in Escherichia coli, which will greatly facilitate the reconstruction of whole erythromycin synthesis pathway and finally help to establish a stable research platform for developing of new derivatives of erythromycin and combinatorial biosynthesis of polyketide-type antibiotics.
Anti-Bacterial Agents ; biosynthesis ; Cloning, Molecular ; Electrophoresis, Polyacrylamide Gel ; Erythromycin ; analogs & derivatives ; biosynthesis ; Escherichia coli ; genetics ; metabolism ; Genetic Vectors ; genetics

Objective To investigate the clinical value of tumor marker combined with cytokeratin 18 and 19 in the diagnosis of malignant tumors .Methods 264 patients with malignant tumor were selected as the observation group.During the same period,136 patients with benign tumor were selected as the control group .The tumor markers, cytokeratin 18 (CK18) and cytokeratin 19 (CK19) levels were compared between the two groups ,and the positive detection rate of tumor markers combined with CK 18 and CK19 were analyzed .Results The serum CK18 and CK19 levels of the observation group were (25.48 ±75.14) U/L,(18.67 ±64.85)U/L,respectively,which were signifi-cantly higher than those of the control group [(0.56 ±1.52)U/L,(0.76 ±0.43)U/L],the differences were statisti-cally significant (t=17.38,15.75,all P<0.05).The serum levels of CEA,CA125,CA50,CA19-9 and TSGF of the observation group were (21.24 ±30.16) μg/L,(69.85 ±112.75) mU/L,(47.32 ±121.81) mU/L,(41.87 ± 20.65) mU/L,(91.64 ±43.84) mU/L,respectively,which were significantly higher than those of the control group [(1.27 ±0.85) ng/mL,(15.82 ±3.87) mU/L,(12.85 ±31.65) mU/L,(6.89 ±4.85) mU/L,(38.35 ± 8.01) mU/L],the differences were statistically significant (t=15.73,16.89,14.86,17.79,16.73,all P<0.05).The positive detection rates of CK18 and CK19 for gastric cancer (66.67％) and lung cancer (77.14％) were signif-icantly higher than tumor markers ,and the differences were statistically significant (χ2 =5.67,6.78,all P<0.05). The positive detection rate of tumor markers combined with CK 18 and CK19 for malignant tumors ( 75.00％) was significantly higher than CK18 and CK19 joint detection (65.91％),tumor markers (46.97％),the differences were statistically significant (χ2 =6.78,7.12,all P<0.05).Conclusion Tumor markers combined with CK18 and CK19 detection is helpful to improve the detection rate of malignant tumors and provide effective basis for following treatment.

Wound repair is a fundamental task that the whole field of the Burn and Plastic surgery pays urgent attention to and longs for a breakthrough. In this column, wound repair balance laws theory is expounded and we are expecting people in the field gradually began to value the use of balance law. Guided by the law of balance principle, people are required to conduct scientific research, improve clinical technique and develop new materials. The theory is designed to improve the level of scientific research and clinical diagnosis, and will set up a new milestone in the field of wound repair.