AIM:To investigate the gene expression profile of human lung squamous cell carcinoma in early stage.METHODS:The mRNA was extracted from cancer tissue and normal lung tissue.The mixed probes were labeled and hybridized with chip containing 480 carcinoma related genes,then analyzed by SuperArray Image software to study the gene expression patterns in lung squamous cell carcinoma.RESULTS:192 genes associated with lung squamous cell carcinogenesis were found,which were grouped into transporter,adhesion molecules,cytoskeleton proteins,transcription regulator,genes associated with metabolism and immune response according to functions.127 gens were positive to lung squamous cell carcinogenesis and 65 genes were negative to lung squamous cell carcinogenesis.CONCLUSION:The screen of gene expression profile of human lung squamous cell carcinoma provides valuable information for the research of molecular mechanism of the lung squamous cell carcinogenesis.

ObjectiveTo study the effect of comprehensive treatment on lumbar interveretebral disc syndrome.Methods227 patients with lumbar interveretebral disc syndrome were randomized into two groups. Control group(127 patients) only accepted lumbar vertebra traction, while treatment group(100 patients) accepted comprehensive treatment, including lumbar vertebra traction, hot magnet, Maitland manipulation, and Mckeizie back muscles train. ResultsEffect of treatment group was obviously better than control group (P<0.05). Conclusions Comprehensive treatment on lumbar interveretebral disc syndrome can get better effect than simply traction.

Objective This paper aims at establishing a inductively coupled plasma mass spectrometry ( ICP-MS) method for quantification and evaluation of iodine in human urine and serum in routine clinical laboratory .Methods This study was methodology validation research on iodine evaluation using ICP-MS.Ammonia, isopropanol and ultrapure water were mixed at certain ratio to dilute samples in the ratio of 1:10, and then the diluted samples were analyzed by ICP -MS.Re was used as the internal standard.And linearity, lower limit of detection, recovery, precision, accuracy, carryover and stability was evaluated thoroughly .Results of iodine of pregnant women who required iodine tests were retrospectively analyzed to evaluate the status of iodine .Results The method only needs 30s for analysis of one sample .It was sensitive with a lower limit detection of 0.87μg/L, the correlation coefficient was higher than 0.999 9 in ten measurements.The recovery in both serum and urine was approximately 100% (95.3% -109.9%). Based on the NIST standard reference material 3668 comparison, the bias was less than 4%( -0.9% -3.9%).The inter-coefficient variation (CV) for serum iodine and urine iodine was 1.2%-3.0%, 2. 0%-2.9%, respectively;and total CV for serum iodine and urine iodine were 3.0%-3.8%, 4.1%-4.9%, respectively.The mean carryover of this method was 0.03% and iodine was stable for at least one month at -20℃ and 4℃.The urine and serum iodine for pregnant women was (154.8 ±89.7) μg/L (mean ±SD),(75.8 ±21.4) μg/L, respectively.The correlation between urine and serum iodine was 0.21. Conclusion Establishe a rapid and simple ICP -MS method for urine and serum iodine measurement with high accurate and precise in routine clinical laboratory .

To illustrate the solubility involved in biopharmaceutics classification system of Chinese materia medica (CMMBCS) , the influences of artificial multicomponent environment on solubility were investigated in this study. Mathematical model was built to describe the variation trend of their influence on the solubility of puerarin. Carried out with progressive levels, single component environment: baicalin, berberine and glycyrrhizic acid; double-component environment: baicalin and glycyrrhizic acid, baicalin and berberine and glycyrrhizic acid and berberine; and treble-component environment: baicalin, berberin, glycyrrhizic acid were used to describe the variation tendency of their influences on the solubility of puerarin, respectively. And then, the mathematical regression equation model was established to characterize the solubility of puerarin under multicomponent environment.
Berberine ; chemistry ; Biopharmaceutics ; Drugs, Chinese Herbal ; chemistry ; Flavonoids ; chemistry ; Glycyrrhizic Acid ; chemistry ; Isoflavones ; chemistry ; Materia Medica ; chemistry ; Solubility

After a description of the concept of research frontier, advantages and disadvantages of qualitative and quantitative research frontier analysis methods, application of qualitative and quantitative research frontier analysis methods and existed problems, it was pointed out that the automatic detection method of heterogeneous data source text mining was a trend for the research frontier identification methods.

BACKGROUND: At present, the transplantation of bone marrow-derived endothelial progenitor cells (BM-EPCs) or bone marrow-derived hepatocyte stem cells (BDHSCs) is common in the treatment of liver fibrosis, but the combined treatment for liver fibrosis is rarely reported. Combined transplantation of BM-EPCs possessing the function of angiogenesis and BDHSCs possessing the function of hepatocyte regeneration might play a dual anti-fibrosis role. OBJECTIVE: To evaluate the reversal effect on liver fibrosis by the combined transplantation of BM-EPCs and BDHSCs in rats. METHODS: The liver fibrosis rat models were induced with CCl4 subcutaneous injections for 6 weeks. BM-EPCs of rats with liver fibrosis were obtained by culture induction in vitro.BDHSCs of rats with liver fibrosis were obtained by magnetic bead cell sorting.BM-EPCs and/or BDHSCs were transplanted into liver fibrosis rats via the tail vein and branch of the portal vein,and then the effects of BDHSCs transplantatiron on liver fibrosis and liver function were observed. RESULTS AND CONCLUSION: (1) Masson staining results showed transplantations of BDHSCs and BM-EPCs, alone or both, could suppress the formation of collagen fibers. However, the staging scores of liver fibrosis showed that only the combined transplantation of BM-EPCs and BDHSCs could significantly improve liver fibrosis,which was significantly different from the model group(1.75±0.25 vs. 3.00±0.19, P < 0.05). (2) The liver biochemical assay in the blood showed that the levels of all five parameters of alanine aminotransferase, aspartate aminotransferase, total bilirubin, prothrombin time, and activated partial thromboplastin time in the BM-EPCs/BDHSCs group were significantly improved to be equivalent to normal levels, compared with those in the model group (P < 0.05). To conclude, it is an effective treatment for liver fibrosis by the co-transplantation of BM-EPCs and BDHSCs.

OBJECTIVETo investigate the biocompatibility of new bone tissue engineering scaffolds, A:D, L-polylactic acid (PDLLA)/polylactic acid-polyethylene glycol-polylactic acid-polylactic acid (PLA-PEG-PLA)/Tricalcium phosphate and B: PDLLA/PLA-PEG-PLA in vivo, compared with PDLLA in repair of a rabbit mandibular body defect.

METHODS24 New Zealand adult rabbits were divided into 4 groups randomly. 15 mm x 6 mm defects were made surgically in the bilateral mandibular bodies and each hemi-mandible was assigned as an experimental unit. The defects were randomly repaired with scaffold materials in each group. Specimens obtained were evaluated with general observation, X-ray, histomorphology and computerized graphical analysis at 2, 4 , 8, 12 weeks after surgery.

RESULTSCompared with PDLLA, the new scaffold materials B showed biocompatibility. At the same time the quantity of new bone produced was much more than that in control group (P<0.05). The new scaffold materials A showed the clear chronic granulomatous inflammation.

CONCLUSIONNew scaffold material B had sound biocompatibility. It was much better than PDLLA. So it may be an ideal bone tissue engineering scaffold material. A is not adapted to be used as scaffold material.

Animals ; Biocompatible Materials ; Bone and Bones ; Calcium Phosphates ; Lactates ; Lactic Acid ; Polyesters ; Polyethylene Glycols ; Polymers ; Rabbits ; Tissue Engineering ; Tissue Scaffolds

Spine cord injury is a kind of severe central nervous system trauma causing motion and sensation dysfunction. Treatment fo-cuses on controlling secondary injury cascade and improving regeneration which are heavily regulated by microRNAs (miRNAs). This re-view discussed the effect of miRNAs with different subtypes on spine cord injury, and investigated their potential roles as therapeutic agents in the personalized treatment of patients with spine cord injury.

Background Extranodal natural killer/T-cell (NK/T cell) lymphoma,nasal-type,is a rare lymphoma.Skin is the second most common site of involvement after the nasal cavity/nasalpharynx.The aim of this study was to investigate the clinicopathologic features,immunophenotype,T cell receptor (TCR) gene rearrangement,the association with Epstein-Barr virus (EBV) infection and p53 gene mutations of the lymphoma.Methods The clinicopathologic analysis,immunohistochemistry,in situ hybridization for EBER1/2,TCR gene rearrangement by polymerase chain reaction (PCR),mutations of p53 gene analyzed by PCR and sequence analysis were employed in this study.Results In the 19 cases,the tumor primarily involved the dermis and subcutaneous layer.Immunohistochemical staining showed that most of the cases expressed CD45RO,CD56,CD3ε,TIA-1 and GrB.Three cases were positive for CD3 and two cases were positive for CD30.Monoclonal TCRY gene rearrangement was found in 7 of 18 cases.The positive rate of EBER1/2 was 100％.No p53 gene mutation was detected on the exon 4-9 in the 18 cases.Fifteen cases showed Pro (proline)/Arg (arginine) single nucleotide polymorphisms (SNPs) on the exon 4 at codon 72.The expression of p53 protein was 72％ (13/18) immunohistochemically.Conclusions Cutaneous NK/T-cell lymphoma is a rare but highly aggressive lymphoma with poor prognosis.No p53 gene mutation was detected on the exon 4-9,and Pro/Arg SNPs on p53 codon 72 were detected in the cutaneous NK/T-cell lymphoma.The overexpression of p53 protein may not be the result of p53 gene mutation.

Objective To summarize and analyse problems and solving strategies optical lens in the application and maintenance of fundus operation, and put forward effective solving strategies aim at these problems, so as to improve the management value, and ensure the safety of patients. Methods The management status of ophthalmological instruments in 20 Beijing tertiary hospitals was investigated. Through the retrospective data analysis, the adverse events of 13,000 cases of fundus operation from January to December 2015 in the operation room of Beijing Tongren Hospital were collected and analyzed. Results Except special hospitals, more than 80% of the hospitals did not set up a special ophthalmological equipment room. Operating rooms in 75% of the hospitals were still in charge of the management of instruments, and methods of manual and mechanical cleaning were used, in addition, the professional cleaning tools were inadequate. For all kinds of daily problems, only 60% of them received professional advice and guidance. Retrospective data showed that from January to December 2015, the number of adverse events of optical lens in using and maintenance was 15, and the incidence rate was 0. 12%. Conclusions The use and of optical lens should be combined with the method of “5S” method, dedicated staff, professional management, and constantly updated, so as to play a better role in ensuring the safety of patients.